Danfoss PVG 128, PVG 256 User guide

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Technical Information

PVG 128/256

Proportional Valve Group

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Technical Information

PVG 128/256 Technical Information

Revision history Table of revisions

Date Changed Rev

July 2021 Corrected PVB 256 3-way Compensator with LS A/B parts table 0510

March 2021 Corrected PVSI with P and T port dimensions 0509

May 2020 Minor revision - data corrections throughout, updated version number to match online

catalogue.

Changed document number from 'BC00000380' to 'BC220686485279' XX

June 2019 Minor changes throughout document, new images added. 0407

September 2018 Safety topic added. 0406

August 2018 Layout changes, minor edits 0405

June 2018 Table for dimensions page 90 update. 0404

March 2018 Minor edits 0403

January 2018 correction to part number pg 54 0402

October 2017 Updated port names on schematics 0401

July 2017 Updated specs and dimensions 0301

March 2017 Corrected PVAS equation 0203

March 2017 Updated PVAS tables 0202

January 2017 Changed PVEO and PVEH product data 0201

November 2016 First edition 0101

0508

2 | © Danfoss | July 2021 BC220686485279en-000510

Technical Information

PVG 128/256 Technical Information

General Information

Safety in Systems..............................................................................................................................................................................5

PVG 128/256 Proportional Valve Group...................................................................................................................................7

PVG general description................................................................................................................................................................ 8

Features of the PVG 128/256 valve............................................................................................................................................ 8

PVPV Inlet Modules

Closed Center PPRV for PVE Activation and/or Mechanical........................................................................................... 10

PPRV for PVH/PVHC Activation and/or Mechanical ..........................................................................................................12

PVB 128 Variant Overview

PVB 128 3-way Compensator.................................................................................................................................................... 15

PVB 128 3-way Compensator with LS A/B.............................................................................................................................18

PVB 128 3-way Compensator with LS A/B and PVLP.........................................................................................................22

PVB 256 Variant Overview

PVB 256 3-way Compensator.................................................................................................................................................... 28

PVB 256 3-way Compensator with LS A/B.............................................................................................................................32

PVB 256 3-way Compensator with LSA/B and PVLP..........................................................................................................36

PVB 256 3-way Compensator with LS A/B, PVLP and Turbo...........................................................................................41

PVLP Shock and PVLA Suction Valves

PVLP Overview................................................................................................................................................................................46

PVLP Technical Data......................................................................................................................................................................46

PVBS Main Spool

PVBS Main Spools variant overview........................................................................................................................................49

Flow control spools..................................................................................................................................................................49

PVBS main spools product details........................................................................................................................................... 49

PVS Main spools part numbers................................................................................................................................................. 51

Flow control spools..................................................................................................................................................................52

Flow control spool closed neutral position............................................................................................................... 52

Flow control spool throttled open neutral position...............................................................................................52

Single acting cylinder flow control spool closed neutral position, flow control B port............................ 53

Flow control spool closed neutral position with A-float.......................................................................................54

PVM Manual Activation

PVM Technical Data.......................................................................................................................................................................56

PVH Hydraulic Actuation

PVH Technical Data....................................................................................................................................................................... 58

PVHC Electro-Hydraulic Actuator type

PVHC Technical Data.....................................................................................................................................................................60

PVMD Cover Manual Actuation Only

PVMD Part Numbers..................................................................................................................................................................... 61

PVE Electrical Actuator

PVE Series 7 Electrical Actuator.................................................................................................................................................62

PVE Variant Overview

PVE Variant Overview................................................................................................................................................................... 64

PVEO................................................................................................................................................................................................... 64

PVEO..............................................................................................................................................................................................65

PVEO Schematics and Dimensions............................................................................................................................... 66

PVEO Technical Data..........................................................................................................................................................66

PVEO 128/256 Reaction Times........................................................................................................................................67

PVEO Variants for PVG....................................................................................................................................................... 67

PVEH....................................................................................................................................................................................................68

PVEH Overview..........................................................................................................................................................................68

PVEH Schematics and Dimensions............................................................................................................................... 69

PVEH Technical Data.......................................................................................................................................................... 69

PVEH Reaction Times......................................................................................................................................................... 71

Danfoss | July 2021 BC220686485279en-000510 | 3

Technical Information

PVG 128/256 Technical Information

Contents

PVEH Hysteresis and Ripple.............................................................................................................................................71

PVEH Variants for PVG....................................................................................................................................................... 72

Connector Overview

Connector Overview.....................................................................................................................................................................73

Fault Monitoring and Reaction

Generic Fault Reaction.................................................................................................................................................................74

PVEH Fault Reaction Overview..................................................................................................................................................75

Functionality Overview

Standard and Fixed US 0-10 Vdc.............................................................................................................................................. 76

PWM Voltage Control..............................................................................................................................................................76

Float A-Port (-FLA)..........................................................................................................................................................................78

PVE Power Save.............................................................................................................................................................................. 78

Special Features

Dedicated Float Pin (UF)..............................................................................................................................................................79

Disable Mode...................................................................................................................................................................................79

Performance Overview

PVG 128/256 Reaction Times.....................................................................................................................................................80

Hysteresis and Ripple................................................................................................................................................................... 81

Oil Consumption............................................................................................................................................................................ 81

PVSI/PVGI End and Interface Plates

PVSI with or without LX-connection.......................................................................................................................................83

PVSI with P and T port connections........................................................................................................................................ 84

PVGI Interface Plate.......................................................................................................................................................................85

PVAS

PVAS for Combo............................................................................................................................................................................. 87

PVAS Part Number Overview.....................................................................................................................................................88

PVG Valve Schematics

Valve Schematics............................................................................................................................................................................90

Dimension Overview

Dimension Overview for PVG 128/256...................................................................................................................................92

Specifications example................................................................................................................................................................ 95

4 | © Danfoss | July 2021 BC220686485279en-000510

Technical Information

PVG 128/256 Technical Information

General Information

Safety in Systems

All types and brands of control valves, including proportional valves, can fail. Therefore, the necessary protection against the serious consequences of a functional failure should always be built into the system.

General safety considerations

For each application an assessment should be made for the consequences of the system in case of pressure failure and uncontrolled or blocked movements.

Warning

Because the proportional valve is used in many different applications and under different operating conditions, it is the sole responsibility of the manufacturer to ensure that all performance, safety and warning requirements of the application is met in his selection of products and complies with relevant machine specific and generic standards.

Control system example

An example of a control system using an aerial lift is shown below:

Aerial lift

This example breaks down the control system into smaller bits explaining the architecture in depth. Even though many Danfoss components are used in the PVG control system.

The function of the control system is to use the output from the PVE together other external sensors to ensure the PLUS+1 main controllers correct function of the aerial lift.

Danfoss | July 2021 BC220686485279en-000510 | 5

Technical Information

PVG 128/256 Technical Information

General Information

Electrical block diagram

Warning

It is the responsibility of the equipment manufacturer that the control system incorporated in the machine is declared as being in conformity with the relevant machine directives.

Caution

A mix of electrical actuation and hydraulic actuation on the same valve stack is not safe. PVE and PVH are designed for different pilot pressure.

Cost-free repairs, as mentioned in Danfoss General Conditions of Sale, are carried out only at Danfoss or at service shops authorized by Danfoss.

6 | © Danfoss | July 2021 BC220686485279en-000510

PVPV

PVE/PVHC ActuatorsPVB 256

PVM PVBS

PVB 128

PVMD/PVH Covers

PVSI/PVGI

PVAS

P109160

Technical Information

PVG 128/256 Technical Information

General Information

PVG 128/256 Proportional Valve Group

Navigation

PVPV PVB 256 PVB 128 PVBS Main Spool on page 49 PVM PVE Series 7 Electrical Actuator on

PVMD/PVH Covers PVSI/PVGI End and Interface Plates on

page 82

page 62/PVHC

PVAS

Danfoss | July 2021 BC220686485279en-000510 | 7

Technical Information

PVG 128/256 Technical Information

General Information

PVG general description

PVG is a hydraulic, load-sensing proportional valve, designed for optimal machine performance and maximum design flexibility.

The PVG valve design is based on a modular concept that enables machine designers to specify a valve solution suitable for multiple market segments across multiple applications.

The load independent proportional control valve and high performance actuator technology combined with a low pressure drop design improves the machine performance and efficiency – increasing productivity and reducing energy consumption.

Features of the PVG 128/256 valve

•

Inlet flow up to 1200 l/min [317 US gal/min]

•

Compact sectional platform solution for easy integration with PVG 16 and PVG 32

•

Load-independent flow control:

Oil flow to an individual function is independent of the load pressure of this function

‒

Oil flow to one function is independent of the load pressure of other functions

‒

•

Reliable regulation characteristics across the entire flow range

•

Load sense relief valves for A and B port enables reduced energy loss at target pressure

•

Optimized for lower pressure drop and higher efficiency

•

Several options for connection threads and flange mount

•

Compact design, easy installation and serviceability

•

Static Load sense system when selecting pump control

•

Internal T0 connection in all PVSI/PVGI

8 | © Danfoss | July 2021 BC220686485279en-000510

47.5

285.5

100.5

78.5

43.5

180.6

PVPV 256

PVPV inlet module dimensions (mm)

Weight 10 kg [22 lbs]

Technical Information

PVG 128/256 Technical Information

PVPV Inlet Modules

The Closed Center PVPV inlet with integrated pilot pressure reduction valve (PPRV) for PVE activation is intended for use with variable displacement pumps in applications where a valve group with electrohydraulic or hydraulically controlled work sections is desired.

All Variants are prepared for 2xPVLP shock/anti-cavitation valves for pressure peak protection and anticavitation prevention.

PVLPs are for pressure peak protection in the system and pump. Optional electrically actuated pilot shut off valve PVPP provides additional functional system safety by

removing pilot oil from the electrical actuation or hydraulic actuation system, disabling main spool actuation.

All variants have internal T0 to tank connection in the PVSI and PVGI end plates.

The PVPV 256 inlet module variants are based on a generic platform with a selection of additional features, enabling you to tailor the PVPV inlet to suit the demands of any hydraulic system.

Variable displacement pump symbol

The generic PVPV 256 inlet module platform includes the following main variants:

Closed Center PVPV with PPRV PVEClosed center inlet module for variable displacement pumps. Closed Center PVPV with PPRV for PVH/PVHC Closed center inlet module for variable displacement pumps.

Optional feature: PVPP Electrical Pilot Shut-Off Valve - Closed center inlet module for variable displacement pumps.

Danfoss | July 2021 BC220686485279en-000510 | 9

P Pp

P109162

Technical Information

PVG 128/256 Technical Information

PVPV Inlet Modules

Closed Center PPRV for PVE Activation and/or Mechanical

The PVPV 256 inlet modules, also referred to as pump side modules, act as an interface between the PVG 128/256 proportional valve group and the hydraulic pump and tank reservoir.

Schematic

Technical data

Max. rated pressure P-port continuous 350 bar [5076 psi]

P-port intermittent 400 bar [5800 psi]

T-port static/dynamic 25/40 bar [363/580 psi] Rated Port P (PVPV/PVSI) P-port 600/600 l/min [159/159 US gal/min] Oil temperature Recommended 30 to 60°C [86 to 140°F]

Minimum -30°C [-22°F]

Maximum 90° [194°F] Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 to 347 SUS]

Minimum 4 mm2/s [39 SUS]

Maximum 460 mm2/s [2128 SUS] Oil contamination

according to ISO 4406

Maximum 23/19/16

Part numbers for Closed Center PVPV with PPRV for PVE

Part number

11173130 PVE

11176703 PVE

11176691 PVE

11176702 PVE

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PPRV P-port T-port

Metric

Flange

1-1/4”

Thread Ports

G1-1/2" BSP

SAE Flange

1-1/4” UNF

Thread Ports

1-7/8” UNF

Metric Flange 1-1/2”

Thread Ports G1-1/2" BSP

SAE Flange 1-1/2” UNF

Thread Ports 1-7/8” UNF

LS-port Gauge-port

G3/8"BSP G3/8"BSP G1/4"BSP M12

9/16-18 UNF 3/4-16 UNF 7/16-20 UNF M12

M-port Gauge-port

T- and Pp Gauge-port

Mounting feet

[psi] [bar]

Max

Min

400

300

200

100

0 1 2 3 4 5

0 0.25 0.5 0.75 1.0 1.25

[l/min]

[US gal/min]

P109211

Technical Information

PVG 128/256 Technical Information

PVPV Inlet Modules

Pilot Pressure Reduction Valve Performance

Accessory module for PVPV 256

Ordering information 12 V 24 V

PVPP Pilot shut off valve 11160318 11160319

Danfoss | July 2021 BC220686485279en-000510 | 11

P Pp

P109163

Technical Information

PVG 128/256 Technical Information

PVPV Inlet Modules

PPRV for PVH/PVHC Activation and/or Mechanical

The Closed Center PVPV inlet with integrated pilot pressure reduction valve (PPRV) for PVH/PVHC activation is intended for use with variable displacement pumps in applications where a valve group with PVH/PVHC controlled work sections is desired.

All Variants are prepared for 2xPVLP shock/anti-cavitation valves for pressure peak protection and anticavitation prevention.

Optional electrically actuated pilot shut off valve PVPP provides additional functional system safety by removing pilot oil from the electrical actuation or hydraulic actuation system, disabling main spool actuation.

Schematic

Technical data

Max. rated pressure P-port continuous 350 bar [5076 psi]

P-port intermittent 400 bar [5800 psi]

T-port static/dynamic 25/40 bar [363/580 psi] Rated Port P (PVPV/PVSI) P-port 600/600 l/min [159/159 US gal/min] Oil temperature Recommended 30 to 60°C [86 to 140°F]

Minimum -30°C [-22°F]

Maximum 90° [194°F] Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 to 347 SUS]

Minimum 4 mm2/s [39 SUS]

Maximum 460 mm2/s [2128 SUS] Oil contamination

according to ISO 4406

Maximum 23/19/16

Part numbers for Closed Center PVPV with PPRV for PVH/PVHC

Part number

11178095 PVH/PVHC

11178098 PVH/PVHC

11178117 PVH/PVHC

11178119 PVH/PVHC

PPRV P-port T-port

Metric

Flange

1-1/4”

Thread Ports

G1-1/2" BSP

SAE Flange

1-1/4” UNF

Thread Ports

1-7/8” UNF

Metric Flange 1-1/2”

Thread Ports G1-1/2" BSP

SAE Flange 1-1/2” UNF

Thread Ports 1-7/8” UNF

LS-port Gauge-port

G3/8"BSP G3/8"BSP G1/4"BSP M12

9/16-18 UNF 3/4-16 UNF 7/16-20 UNF M12

M-port Gauge-port

T- and Pp Gauge-port

Mounting feet

12 | © Danfoss | July 2021 BC220686485279en-000510

1 2 3 4 5

Max

Min

[psi] [bar]

400

300

200

100

0 0.25 0.5 0.75 1.0 1.25

[l/min]

[US gal/min]

P109212

Technical Information

PVG 128/256 Technical Information

PVPV Inlet Modules

Pilot Pressure Reduction Valve Performance

Accessory module for PVPV 256

Ordering information 12 V 24 V

PVPP Pilot shut off valve 11160318 11160319

Danfoss | July 2021 BC220686485279en-000510 | 13

182.2

205

23.5

107

178.8

PVB 128

PVB 128 basic module dimensions (mm)

Weight 10 kg [22 lbs]

Technical Information

PVG 128/256 Technical Information

PVB 128 Variant Overview

The PVG 128 Basic modules (PVB), also referred to as work sections, is the interface between the PVG 128 proportional valve group and the work function such as a cylinder or a motor.

The PVB basic module variants are based on a generic platform with a selection of additional features, enabling you to tailor the PVB to suit the demands of any hydraulic system.

The compensator is a 3-way type which include load drop check valve functionality, compensator function and neutral relief which avoid A and B port pressure build up in neutral.

Symbol - compensated PVB

The generic PVB basic module platform includes the following main variants:

PVB 128 Compensated basic module. Compensated PVB 128 w LSA/B Compensated basic module with LSA/B relief valve for each work port. Compensated PVB 128 with LSA/B and PVLP Compensated basic module with LSA/B relief valve for each

work port and 2xPVLPs for each work port.

Warning

Risk of leak The module will leak if the flange mount screws are not properly secured. Flange mount screws according to ISO 6162-2.

14 | © Danfoss | July 2021 BC220686485279en-000510

P109173

Technical Information

PVG 128/256 Technical Information

PVB 128 Variant Overview

PVB 128 3-way Compensator

The compensated PVB is intended for controlling a work function where the function behavior in terms of flow and pressures requires independency on the load pressure of other functions used simultaneously.

The compensator is a 3-way type which include load drop check valve functionality, compensator function and neutral relief which avoid A and B port pressure build up in neutral.

Schematic

Technical data

Max. rated pressure A/B port continuous 350 bar [5076 psi]

Max. rated flow Oil temperature Recommended 30 to 60°C [86 to 140°F]

Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 to 347 SUS]

Oil contamination according to ISO 4406

Max. internal leakage at 100 bar [1450 psi] and 21 mm2/s [102 SUS]

Rated flow at 15 bar margin pressure

A/B port intermittent 400 [5800 psi]

A/B port 250 l/min [66 US gal/min]

Minimum -30°C [-22°F] Maximum 90° [194°F]

Minimum 4 mm2/s [39 SUS] Maximum 460 mm2/s [2128 SUS] Maximum 23/19/16

A/B→T without shock valve 70 cm3/min [4.27 in3/min] A/B→T with shock valve 80 cm3/min [4.88 in3/min

Part numbers for Compensated PVB 128

Part number A/B-port PVLP/PVLA LS A/B-port

11170522 Metric Flange 3/4” - 11170528 G 1" BSP - 11170524 SAE Flange 3/4” UNC - 11170526 Thread Ports 1 5/16 UNC - -

Danfoss | July 2021 BC220686485279en-000510 | 15

100

125

150

175

200

225

250

[l/min] [US gal/min]

[mm]

PVM

01234567

[in]

PVM

00.040.080.120.160.200.240.28

PVEH

0.31

910

0.350.39

[mm]

PVM

1098765

[in]

PVM

0.390.350.310.280.240.20 U

0.70.650.60.55

0.16

0.5

321

0.120.080.04

0.75

PVEH

PVEH-U

5.0

7.5

PVEH-U

0.450.40.350.3

0.25

0.5

2.5

5.0

[V]

100

125

150

175

200

225

250

[l/min] [US gal/min]

250225200175150125

100

755025

350

325300275

25002000150010005000 35003000 4000 50004500

[b ar]

[p si]

P109213

Technical Information

PVG 128/256 Technical Information

PVB 128 Variant Overview

Oil flow as function of spool travel

Load Independent Oil Flow, Pressure Compensated

16 | © Danfoss | July 2021 BC220686485279en-000510

25 50 75 100 125 150 175 200 225 250 275 300

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80

250

200

150

100

350

300

Port P to Port A/B at full spool stroke

E = Spool 240 l/min

[psi] [bar]

[l/min]

[US gal/min]

P109240

Port A/B to Tank at full spool stroke

[psi] [bar]

350

300

200

150

100

250

0 25 50 75 100 125 150 175 200 225 250 275 300

0 5 10 15 20 25 30 35 404550

55 60

65 70 75 80

E = Spool 240 l/min

[l/min]

[US gal/min]

P109241

Technical Information

PVG 128/256 Technical Information

PVB 128 Variant Overview

PVB 128 Upstream Performance

Danfoss | July 2021 BC220686485279en-000510 | 17

PVB 128 Downstream Performance

LS/B

LS/A

P109186

Technical Information

PVG 128/256 Technical Information

PVB 128 Variant Overview

PVB 128 3-way Compensator with LS A/B

The integrated LSA/B relief valves are used to limit the maximum work port pressure on the A and B-ports individually.

The compensator is a 3-way type which include load drop check valve functionality, compensator function and neutral relief which avoid A and B port pressure build up in neutral.

Schematic

Technical data

Max. rated pressure A/B port continuous 350 bar [5076 psi]

A/B port intermittent 400 [5800 psi] Max. rated flow Oil temperature Recommended 30 to 60°C [86 to 140°F]

Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 to 347 SUS]

Oil contamination according to ISO 4406

Max. internal leakage at 100 bar [1450 psi] and 21 mm2/s [102 SUS]

Rated flow at 15 bar margin pressure

A/B port 250 l/min [66 US gal/min]

Minimum -30°C [-22°F]

Maximum 90° [194°F]

Minimum 4 mm2/s [39 SUS]

Maximum 460 mm2/s [2128 SUS]

Maximum 23/19/16

A/B→T without shock valve 70 cm3/min [4.27 in3/min]

A/B→T with shock valve 80 cm3/min [4.88 in3/min

Part numbers for Compensated PVB with LS A/B

Part number A/B-port PVLP/PVLA LS A/B-port

11176915 Metric Flange 3/4” - G1/4"BSP 11176918 G 1" BSP - G1/4"BSP 11176916 SAE Flange 3/4” UNC - 7/16-20 UNC 11176917 Thread Ports 1 5/16 UNC - 7/16-20 UNC

18 | © Danfoss | July 2021 BC220686485279en-000510

100

125

150

175

200

225

250

[l/min] [US gal/min]

[mm]

PVM

01234567

[in]

PVM

00.040.080.120.160.200.240.28

PVEH

0.31

910

0.350.39

[mm]

PVM

1098765

[in]

PVM

0.390.350.310.280.240.20 U

0.70.650.60.55

0.16

0.5

321

0.120.080.04

0.75

PVEH

PVEH-U

5.0

7.5

PVEH-U

0.450.40.350.3

0.25

0.5

2.5

5.0

[V]

100

125

150

175

200

225

250

[l/min] [US gal/min]

250225200175150125

100

755025

350

325300275

25002000150010005000 35003000 4000 50004500

[b ar]

[p si]

P109213

Technical Information

PVG 128/256 Technical Information

PVB 128 Variant Overview

Oil flow as function of spool travel

Load Independent Oil Flow, Pressure Compensated

Danfoss | July 2021 BC220686485279en-000510 | 19

100

125

150

175

200

225

250

[l/min] [US gal/min]

250225200175150125

100

755025

350

325300275

25002000150010005000 35003000 4000 50004500

[bar]

[psi]

P109215

25 50 75 100 125 150 175 200 225 250 275 300

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80

250

200

150

100

350

300

Port P to Port A/B at full spool stroke

E = Spool 240 l/min

[psi] [bar]

[l/min]

[US gal/min]

P109240

Technical Information

PVG 128/256 Technical Information

PVB 128 Variant Overview

LS A/B Pressure Relief Valve

PVB 128 Upstream Performance

20 | © Danfoss | July 2021 BC220686485279en-000510

Port A/B to Tank at full spool stroke

[psi] [bar]

350

300

200

150

100

250

0 25 50 75 100 125 150 175 200 225 250 275 300

0 5 10 15 20 25 30 35 404550

55 60

65 70 75 80

E = Spool 240 l/min

[l/min]

[US gal/min]

P109241

Technical Information

PVG 128/256 Technical Information

PVB 128 Variant Overview

PVB 128 Downstream Performance

Danfoss | July 2021 BC220686485279en-000510 | 21

LS/B

LS/A

P109172

Technical Information

PVG 128/256 Technical Information

PVB 128 Variant Overview

PVB 128 3-way Compensator with LS A/B and PVLP

The integrated LS A/B relief valves are used to limit the maximum work port pressure on the A and Bports individually.

Featuring 2xPVLP shock/anti-cavitation valves on each work port for pressure peak protection and anticavitation prevention

The compensator is a 3-way type which include load drop check valve functionality, compensator function and neutral relief which avoid A and B port pressure build up in neutral.

Schematic

Technical data

Max. rated pressure A/B port continuous 350 bar [5076 psi]

A/B port intermittent 400 [5800 psi] Max. rated flow Oil temperature Recommended 30 to 60°C [86 to 140°F]

Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 to 347 SUS]

Oil contamination according to ISO 4406

Max. internal leakage at 100 bar [1450 psi] and 21 mm2/s [102 SUS]

Rated flow at 15 bar margin pressure

A/B port 250 l/min [66 US gal/min]

Minimum -30°C [-22°F]

Maximum 90° [194°F]

Minimum 4 mm2/s [39 SUS]

Maximum 460 mm2/s [2128 SUS]

Maximum 23/19/16

A/B→T without shock valve 70 cm3/min [4.27 in3/min]

A/B→T with shock valve 80 cm3/min [4.88 in3/min

Part numbers for Compensated PVB 128 with LSA/B and PVLP

Part number A/B-port PVLP/PVLA LS A/B-port

11165621 Metric Flange 3/4” 2 PVLP/PVLA G1/4"BSP 11170527 G 1" BSP 2 PVLP/PVLA G1/4"BSP 11170523 SAE Flange 3/4” UNC 2 PVLP/PVLA 7/16-20 UNC 11170525 Thread Ports 1 5/16 UNC 2 PVLP/PVLA 7/16-20 UNC

22 | © Danfoss | July 2021 BC220686485279en-000510

100

125

150

175

200

225

250

[l/min] [US gal/min]

[mm]

PVM

01234567

[in]

PVM

00.040.080.120.160.200.240.28

PVEH

0.31

910

0.350.39

[mm]

PVM

1098765

[in]

PVM

0.390.350.310.280.240.20 U

0.70.650.60.55

0.16

0.5

321

0.120.080.04

0.75

PVEH

PVEH-U

5.0

7.5

PVEH-U

0.450.40.350.3

0.25

0.5

2.5

5.0

[V]

25 50 75 100 125 150 175 200 225 250

[l/min]

[USgal/min]

5 10 15 20 25 30 35 40 45 50 55 60 65

250

225

200

175

150

125

100

350

325

300

275

2500

2000

1500

1000

500

3500

3000

4000

5000

4500

[psi] [bar]

P109216

Technical Information

PVG 128/256 Technical Information

PVB 128 Variant Overview

Oil flow as function of spool travel

Danfoss | July 2021 BC220686485279en-000510 | 23

2xPVLP Shock Valve

25 50 75 100 125 150 175 200 225 250 275 300 325

[l/min]

[US gal/min]

350 375 400

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105

425 450 475 500

110115120 125130

500

400

300

200

100

700

600

800

1000

900

[ps i] [ bar ]

Po rt A /B

P109217

100

125

150

175

200

225

250

[l/min] [US gal/min]

250225200175150125

100

755025

350

325300275

25002000150010005000 35003000 4000 50004500

[b ar]

[p si]

P109213

Technical Information

PVG 128/256 Technical Information

PVB 128 Variant Overview

2xPVLA Suction Valve

Load Independent Oil Flow, Pressure Compensated

24 | © Danfoss | July 2021 BC220686485279en-000510

100

125

150

175

200

225

250

[l/min] [US gal/min]

250225200175150125

100

755025

350

325300275

25002000150010005000 35003000 4000 50004500

[bar]

[psi]

P109215

25 50 75 100 125 150 175 200 225 250 275 300

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80

250

200

150

100

350

300

Port P to Port A/B at full spool stroke

E = Spool 240 l/min

[psi] [bar]

[l/min]

[US gal/min]

P109240

Technical Information

PVG 128/256 Technical Information

PVB 128 Variant Overview

LS A/B Pressure Relief Valve

PVB 128 Upstream Performance

Danfoss | July 2021 BC220686485279en-000510 | 25

Port A/B to Tank at full spool stroke

[psi] [bar]

350

300

200

150

100

250

0 25 50 75 100 125 150 175 200 225 250 275 300

0 5 10 15 20 25 30 35 404550

55 60

65 70 75 80

E = Spool 240 l/min

[l/min]

[US gal/min]

P109241

Technical Information

PVG 128/256 Technical Information

PVB 128 Variant Overview

PVB 128 Downstream Performance

26 | © Danfoss | July 2021 BC220686485279en-000510

182.2

205

23.5

107

178.5

PVB 256

PVB 256 basic module dimensions (mm)

Weight 16 kg [35.3 lbs]

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

The PVG 256 Basic modules (PVB), also referred to as work sections, is the interface between the PVG 256 proportional valve group and the work function such as a cylinder or a motor.

The PVB basic module variants are based on a generic platform with a selection of additional features, enabling you to tailor the PVB to suit the demands of any hydraulic system.

The compensator is a 3-way type which includes load drop check valve functionality, compensator function and neutral relief which avoid A and B port pressure build up.

The generic PVB basic module platform includes the following main variants.

Compensated PVB 256 Compensated basic module. Compensated PVB 256 with LS A/B Compensated basic module with LSA/B relief valve for each work port. Compensated PVB 256 with LS A/B and PVLP Compensated basic module with LSA/B relief valve for each

work port and 3xPVLPs for each work port.

Compensated PVB 256 with Turbo compensator feature Compensated basic module with LS A/B relief valve

for each work port and 3xPVLPs for each work port.

Danfoss | July 2021 BC220686485279en-000510 | 27

P109168

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

PVB 256 3-way Compensator

The integrated LS A/B relief valves are used to limit the maximum work port pressure on the A and Bports individually.

The compensator is a 3-way type which include load drop check valve functionality, compensator function and neutral relief which avoid A and B port pressure build up in neutral.

Schematic

Technical data

Max. rated pressure A/B port continuous 350 bar [5076 psi]

A/B port intermittent 400 bar [5800 psi] Max. rated flow A/B port 450 l/min [119 US gal/min] Oil temperature Recommended 30 to 60°C [86 to 140°F]

Minimum -30°C [-22°F]

Maximum 90° [194°F] Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 to 347 SUS]

Minimum 4 mm2/s [39 SUS]

Maximum 460 mm2/s [2128 SUS] Oil contamination

according to ISO 4406 Max. internal leakage at 100

bar [1450 psi] and 21 mm2/s [102 SUS]

Maximum 23/19/16

A/B→T without shock valve 70 cm3/min [4.27 in3/min]

A/B→T with shock valve 85 cm3/min [5.19 in3/min]

Part numbers for Compensated PVB 256

Part number A/B port PVLP/PVLA LS A/B port

11169244 Metric Flange 1” - 11169252 G1 BSP - 11169248 SAE Flange 1” UNC - 11177020 Thread Ports 1-5/16-12 UNC - -

28 | © Danfoss | July 2021 BC220686485279en-000510

100

125

150

175

200

225

250

275

300

325

[l/min] [US gal/min]

[mm]

PVM

01234567

[in]

PVM

0.04

0.080.120.160 .20

0.24

0.28

PVEH

0.50.45

0.40.350.3

0.31

0.25

350

375

400

0.35

0.39

100

105

[mm]

PVM

1098765

[in]

PVM

0.390.350.310. 280.240.20

PVEH

0.70.650.60.55

0.16

0.5

3210

0.120.080.040

0.75

PVEH-U

5.0

2.5

PVEH-U

5.0

7.5

[V]

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

Oil Flow as Function of Spool Travel

Danfoss | July 2021 BC220686485279en-000510 | 29

100

125

150

175

200

225

250

275

300

325

[l/min] [US gal/min]

350

375

400

100

105

250225200175150125

100

755025

425

450

475

500

110

115

120

125

130

350

325300275

25002000150010005000 35003000 4000 50004500

[bar]

[psi]

P109219

25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105

425

110

250

200

150

100

350

300

[psi] [bar]

[l/min]

[US gal/min]

Port P to Port A/B at full spool stroke

G = Spool 400 l/min

P109243

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

Load Independent Oil Flow, Pressure Compensated

PVB 256 Upstream Performance

30 | © Danfoss | July 2021 BC220686485279en-000510

25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105

425 450 475 500

110115120 125130

250

200

150

100

350

300

G/H = Spool 400 l/min

[psi] [bar]

[l/min]

[US gal/min]

Port A/B to Tank at full spool stroke

P109244

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

PVB 256 Downstream Performance

Danfoss | July 2021 BC220686485279en-000510 | 31

LS/B

LS/A

P109167

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

PVB 256 3-way Compensator with LS A/B

The integrated LS A/B relief valves are used to limit the maximum work port pressure on the A and Bports individually.

The compensator is a 3-way type which include load drop check valve functionality, compensator function and neutral relief which avoid A and B port pressure build up in neutral.

Schematic

Technical data

Max. rated pressure A/B port continuous 350 bar [5076 psi]

A/B port intermittent 400 [5800 psi] Max. rated flow A/B port 450 l/min [119 US gal/min] Oil temperature Recommended 30 to 60°C [86 to 140°F]

Minimum -30°C [-22°F]

Maximum 90° [194°F] Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 to 347 SUS]

Minimum 4 mm2/s [39 SUS]

Maximum 460 mm2/s [2128 SUS] Oil contamination

according to ISO 4406 Max. internal leakage at 100

bar [1450 psi] and 21 mm2/s [102 SUS]

Maximum 23/19/16

A/B→T without shock valve 70 cm3/min [4.27 in3/min]

A/B→T with shock valve 85 cm3/min [5.19 in3/min]

Part numbers for Compensated PVB 256 with LSA/B

Part number A/B-port PVLP/PVLA LS A/B-port

11177015 Metric Flange 1” - G1/4"BSP 11177017 G1-1/4 BSP - G1/4"BSP 11177016 SAE Flange 1” UNC - 7/16-20 UNC 11177019 Thread Ports 1-5/16-12 UNC - 7/16-20 UNC

32 | © Danfoss | July 2021 BC220686485279en-000510

100

125

150

175

200

225

250

275

300

325

[l/min] [US gal/min]

[mm]

PVM

01234567

[in]

PVM

0.04

0.080.120.160 .20

0.24

0.28

PVEH

0.50.45

0.40.350.3

0.31

0.25

350

375

400

0.35

0.39

100

105

[mm]

PVM

1098765

[in]

PVM

0.390.350.310. 280.240.20

PVEH

0.70.650.60.55

0.16

0.5

3210

0.120.080.040

0.75

PVEH-U

5.0

2.5

PVEH-U

5.0

7.5

[V]

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

Oil Flow as Function of Spool Travel

Danfoss | July 2021 BC220686485279en-000510 | 33

100

125

150

175

200

225

250

275

300

325

[l/min] [US gal/min]

350

375

400

100

105

250225200175150125

100

755025

425

450

475

500

110

115

120

125

130

350

325300275

25002000150010005000 35003000 4000 50004500

[bar]

[psi]

P109219

100

125

150

175

200

225

250

275

300

325

[l/min] [US gal/min]

350

375

400

100

105

250225200175150125100

7550250

350

325300275

25002000150010005000 35003000 4000 50004500

LS A/B Pressure Limitation

[bar]

[psi]

425

450

475

500

525

110

115

120

125

130

135

550

140

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

Load Independent Oil Flow, Pressure Compensated

LS A/B Pressure Limitation

34 | © Danfoss | July 2021 BC220686485279en-000510

25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105

425

110

250

200

150

100

350

300

[psi] [bar]

[l/min]

[US gal/min]

Port P to Port A/B at full spool stroke

G = Spool 400 l/min

P109243

25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105

425 450 475 500

110115120 125130

250

200

150

100

350

300

G/H = Spool 400 l/min

[psi] [bar]

[l/min]

[US gal/min]

Port A/B to Tank at full spool stroke

P109244

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

PVB 256 Upstream Performance

PVB 256 Downstream Performance

Danfoss | July 2021 BC220686485279en-000510 | 35

LS/B

LS/A

P109166

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

PVB 256 3-way Compensator with LSA/B and PVLP

The integrated LS A/B relief valves are used to limit the maximum work port pressure on the A and Bports individually.

Featuring 3xPVLP shock/anti-cavitation valves on each work port for pressure peak protection and anticavitation prevention.

The compensator is a 3-way type which include load drop check valve functionality, compensator function and neutral relief which avoid A and B port pressure build up in neutral.

Technical data

Max. rated pressure A/B port continuous 350 bar [5076 psi]

A/B port intermittent 400 bar [5800 psi] Max. rated flow A/B port 450 l/min [119 US gal/min] Oil temperature Recommended 30 to 60°C [86 to 140°F]

Minimum -30°C [-22°F]

Maximum 90° [194°F] Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 to 347 SUS]

Minimum 4 mm2/s [39 SUS]

Maximum 460 mm2/s [2128 SUS] Oil contamination

according to ISO 4406 Max. internal leakage at 100

bar [1450 psi] and 21 mm2/s [102 SUS]

Maximum 23/19/16

A/B→T without shock valve 70 cm3/min [4.27 in3/min]

A/B→T with shock valve 85 cm3/min [5.19 in3/min]

Part numbers for Compensated PVB 256 with LSA/B and PVLP

Part number A/B port PVLP/PVLA LS A/B port

11169243 Metric Flange 1” 3 PVLP/PVLA G1/4"BSP 11169251 G1 BSP 3 PVLP/PVLA G1/4"BSP 11169247 SAE Flange 1” UNC 3 PVLP/PVLA 7/16-20 UNC 11177018 Thread Ports 1-5/16-12 UNC 3 PVLP/PVLA 7/16-20 UNC

36 | © Danfoss | July 2021 BC220686485279en-000510

100

125

150

175

200

225

250

275

300

325

[l/min] [US gal/min]

[mm]

PVM

01234567

[in]

PVM

0.04

0.080.120.160 .20

0.24

0.28

PVEH

0.50.45

0.40.350.3

0.31

0.25

350

375

400

0.35

0.39

100

105

[mm]

PVM

1098765

[in]

PVM

0.390.350.310. 280.240.20

PVEH

0.70.650.60.55

0.16

0.5

3210

0.120.080.040

0.75

PVEH-U

5.0

2.5

PVEH-U

5.0

7.5

[V]

25 50 75 100 125 150 175 200 225 250 275 300 325

[l/min]

[US gal/min]

350 375

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

250

225

200

175

150

125

100

350

325

300

275

2500

2000

1500

1000

500

3500

3000

4000

5000

4500

[psi] [bar]

P109221

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

Oil Flow as Function of Spool Travel

3xPVLP Shock Valve

Danfoss | July 2021 BC220686485279en-000510 | 37

25 50 75 100 125 150 175 200 225 250 275 300 325

[l/min]

[US gal/ min]

350 375 400

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105

425 450 475 500

110115120 125 130

500

400

300

200

100

700

600

800

1000

900

[psi] [bar]

Port A/B

P109224

100

125

150

175

200

225

250

275

300

325

[l/min] [US gal/min]

350

375

400

100

105

25022 52001 751501251 00

7550250

350

325300275

25002000150010005000 35003000 4000 50004500

LS A/B Pressure Limitation

[bar]

[psi]

425

450

475

500

525

110

115

120

125

130

135

550

140

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

3xPVLA Suction Valve

LS A/B Pressure Limitation

38 | © Danfoss | July 2021 BC220686485279en-000510

100

125

150

175

200

225

250

275

300

325

[l/min] [US gal/min]

350

375

400

100

105

250225200175150125

100

755025

425

450

475

500

110

115

120

125

130

350

325300275

25002000150010005000 35003000 4000 50004500

[bar]

[psi]

P109219

25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105

425

110

250

200

150

100

350

300

[psi] [bar]

[l/min]

[US gal/min]

Port P to Port A/B at full spool stroke

G = Spool 400 l/min

P109243

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

Load Independent Oil Flow, Pressure Compensated

PVB 256 Upstream Performance

Danfoss | July 2021 BC220686485279en-000510 | 39

25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105

425 450 475 500

110115120 125130

250

200

150

100

350

300

G/H = Spool 400 l/min

[psi] [bar]

[l/min]

[US gal/min]

Port A/B to Tank at full spool stroke

P109244

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

PVB 256 Downstream Performance

40 | © Danfoss | July 2021 BC220686485279en-000510

LS/B

LS/A

P109169

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

PVB 256 3-way Compensator with LS A/B, PVLP and Turbo

The integrated LS A/B relief valves are used to limit the maximum work port pressure on the A and Bports individually.

Featuring 3xPVLP shock/anti-cavitation valves on each work port for pressure peak protection and anticavitation prevention.

The compensator is a 3-way type which include load drop check valve functionality, compensator function and neutral relief which avoid A and B port pressure build up in neutral.

Schematic

Technical data

Max. rated pressure A/B port continuous 350 bar [5076 psi]

A/B port intermittent 400 bar [5800 psi] Max. rated flow A/B port 500 l/min [132 US gal/min] Oil temperature Recommended 30 to 60°C [86 to 140°F]

Minimum -30°C [-22°F]

Maximum 90° [194°F] Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 to 347 SUS]

Minimum 4 mm2/s [39 SUS]

Maximum 460 mm2/s [2128 SUS] Oil contamination

according to ISO 4406 Max. internal leakage at 100

bar [1450 psi] and 21 mm2/s [102 SUS]

Maximum 23/19/16

A/B→T without shock valve 70 cm3/min [4.27 in3/min]

A/B→T with shock valve 85 cm3/min [5.19 in3/min]

Part numbers for Compensated PVB 256 with LSA/B, PVLP and Turbo

Part number A/B port PVLP/PVLA LS A/B port

11183379 Metric Flange 1” 3 PVLP/PVLA G1/4"BSP 11183406 G1 BSP 3 PVLP/PVLA G1/4"BSP 11183404 SAE Flange 1” UNC 3 PVLP/PVLA 7/16-20 UNC 11183402 Thread Ports 1-5/16-1 UNC 3 PVLP/PVLA 7/16-20 UNC

Danfoss | July 2021 BC220686485279en-000510 | 41

100

125

150

175

200

225

250

275

300

325

[l/min]

[US gal/min]

[mm]

PVM

[in]

PVM

0.040.080.120.1 60.20

0.24

0.28

PVEH

0.5

0.45

0.40.35

0.3

0.31

0.25

350

375

400

0.350.39

100

105

[mm]

PVM

987

[in]

PVM

0.390.35

0.310.280.240.20

PVEH

0.7

0.65

0.6

0.55

0.16

0.5

0.120.08

0.04

0.75

425

450

475

500

110

115

120

125

130

PVEH-U

5.0

2.5

PVEH-U

5.0

7.5

[V]

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

Oil Flow as Function of Spool Travel

42 | © Danfoss | July 2021 BC220686485279en-000510

25 50 75 100 125 150 175 200 225 250 275 300 325

[l/min]

[US gal/min]

350 375

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

250

225

200

175

150

125

100

350

325

300

275

2500

2000

1500

1000

500

3500

3000

4000

5000

4500

[psi] [bar]

P109221

25 50 75 100 125 150 175 200 225 250 275 300 325

[l/min]

[US gal/ min]

350 375 400

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105

425 450 475 500

110115120 125 130

500

400

300

200

100

700

600

800

1000

900

[psi] [bar]

Port A/B

P109224

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

3xPVLP Shock Valve

3xPVLA Suction Valve

Danfoss | July 2021 BC220686485279en-000510 | 43

100

125

150

175

200

225

250

275

300

325

[l/min] [US gal/min]

350

375

400

100

105

25022 52001 751501251 00

7550250

350

325300275

25002000150010005000 35003000 4000 50004500

LS A/B Pressure Limitation

[bar]

[psi]

425

450

475

500

525

110

115

120

125

130

135

550

140

100

125

150

175

200

225

250

275

300

325

[l/min] [US gal/min]

350

375

400

100

105

250225200175150125

100

755025

425

450

475

500

110

115

120

125

130

350

325300275

25002000150010005000 35003000 4000 50004500

[bar]

[psi]

P109219

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

LS A/B Pressure Limitation

Load Independent Oil Flow, Pressure Compensated

44 | © Danfoss | July 2021 BC220686485279en-000510

25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105

425 450 475 500

110115120 125130

250

200

150

100

350

300

H = Spool 400 l/min w Turbo

[psi] [bar]

[l/min]

[US gal/min]

Port P to Port A/B at full spool stroke

P109245

25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105

425 450 475 500

110115120 125130

250

200

150

100

350

300

G/H = Spool 400 l/min

[psi] [bar]

[l/min]

[US gal/min]

Port A/B to Tank at full spool stroke

P109244

Technical Information

PVG 128/256 Technical Information

PVB 256 Variant Overview

PVB 256 Turbo Upstream Performance

PVB 256 Downstream Performance

Danfoss | July 2021 BC220686485279en-000510 | 45

P109174

Port pressure

P109175

Port pressure

Technical Information

PVG 128/256 Technical Information

PVLP Shock and PVLA Suction Valves

PVLP Overview

PVLP is set at an oil flow of 10 l/min [2.6 US gal/min] per unit. The shock valve PVLP is designed to absorb shock effects. Consequently, it should not be used as a

pressure relief valve. If the working function requires the use of a pressure relief valve, a PVB basic module with built-in LSA/B

pressure limiting valve should be used.

PVLP schematic

PVLA schematic

PVLP Technical Data

Technical data

Oil temperature Recommended 30 to 60°C [86 to 140°F]

Minimum -30°C [-22°F]

Maximum 90° [194°F] Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 to 347 SUS]

Minimum 4 mm2/s [39 SUS]

Maximum 460 mm2/s [2128 SUS] Oil contamination

according to ISO 4406

Maximum 23/19/16

46 | © Danfoss | July 2021 BC220686485279en-000510

Technical Information

PVG 128/256 Technical Information

PVLP Shock and PVLA Suction Valves

Part numbers for PVLP Shock and PVLA Suction Valves

Description Pressure setting in bar Part number

PVLA - 157B2001 PVLP 32 157B2032

PLUG - 157B2002

50 157B2050 63 157B2063 80 157B2080 100 157B2100 125 157B2125 140 157B2140 150 157B2150 160 157B2160 175 157B2175 190 157B2190 210 157B2210 230 157B2230 240 157B2240 250 157B2250 265 157B2265 280 157B2280 300 157B2300 320 157B2320 350 157B2350 380 157B2380

Danfoss | July 2021 BC220686485279en-000510 | 47

25 50 75 100 125 150 175 200 225 250 275 300 325

[l/min]

[US gal/min]

350 375

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

250

225

200

175

150

125

100

350

325

300

275

2500

2000

1500

1000

500

3500

3000

4000

5000

4500

[psi] [bar]

P109221

25 50 75 100 125 150 175 200 225 250 275 300 325

[l/min]

[US gal/ min]

350 375 400

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105

425 450 475 500

110115120 125 130

500

400

300

200

100

700

600

800

1000

900

[psi] [bar]

Port A/B

P109224

Technical Information

PVG 128/256 Technical Information

PVLP Shock and PVLA Suction Valves

3xPVLP Shock Valve

3xPVLA Suction Valve

48 | © Danfoss | July 2021 BC220686485279en-000510

230

83.5

P109176

Technical Information

PVG 128/256 Technical Information

PVBS Main Spool

The PVG 128/256 main spools (PVBS) determines the flow out of the work section. The PVBS main spool variants are based on a generic platform with a wide selection of additional

features, enabling you to tailor the PVBS to suit the demands of any hydraulic system and any function.

The PVBS main spool can be activated in three different ways:

•

Mechanically by a PVM lever

•

Electrically by either a PVE or a PVHC actuator

•

Hydraulically by a PVH actuator

All spools can be mechanically activated.

PVBS Main Spool

PVBS Main Spool dimensions

PVBS Main Spools variant overview

Flow control spools

•

Flow control spool closed neutral position

•

Flow control spool throttled open neutral position

•

Single acting cylinder flow control spool closed neutral position, flow control B port

•

Flow control spool closed neutral position with A-float

PVBS main spools product details

Technical data

Oil temperature Recommended 30 to 60°C [86 to 140°F]

Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 to 347 SUS]

Oil contamination according to ISO 4406

Minimum -30°C [-22°F] Maximum 90° [194°F]

Minimum 4 mm2/s [39 SUS] Maximum 460 mm2/s [2128 SUS] Maximum 23/19/16

Danfoss | July 2021 BC220686485279en-000510 | 49

100

125

150

175

200

225

250

275

300

325

[l/min] [US gal/min]

[mm]

PVM

[in]

PVM

00.040.08

0.120.160.20

0.240.28

PVEH

0.50.45

0.4

0.350.3

0.31

0.25

910

350

375

400

0.350.39

100

105

[mm]

PVM

109

765

[in]

PVM

0.390.350.310.280.240.20 PVEH

0.70.650.60.55

0.16

0.5

3210

0.120.080.040

0.75

425

450

475

500

110

115

120

125

130

PVEH-U

5.0

2.5

PVEH-U

5.0

7.5

[V]

Technical Information

PVG 128/256 Technical Information

PVBS Main Spool

Progressive Oil Flow as Function of Spool Travel

50 | © Danfoss | July 2021 BC220686485279en-000510

504540353025

15105

656055

1086420 1412 18

250

225

200

175

150

125

100

350

325

300

275

2500

2000

1500

1000

500

3500

3000

4000

5000

4500

A/B to T

[psi] [bar]

[l/min]

[US gal/min]

P109253

100

125

150

175

200

225

250

275

300

325

[l/min]

[US gal/min]

[mm]

PVM

01234567

[in]

PVM

00.040.080 .120.160.200.240 .28

0.31

9101112

350

375

400

0.350.390.430.47

100

105

F BP

[mm]

PVM

8765

[in]

PVM

0.390.350.310.280.240.20

0.16

3210

0.12

0.080 .04

PVH

bar

PVH

5791115

bar

PVH

218

psi

102

131

160

189

PVH

73102

131

160218

189

psi

247

Technical Information

PVG 128/256 Technical Information

PVBS Main Spool

Pressure drop for open spool in neutral position

Progressive oil flow characteristic of spool with A-float

PVS Main spools part numbers

Danfoss | July 2021 BC220686485279en-000510 | 51

P109177

P109178

Technical Information

PVG 128/256 Technical Information

PVBS Main Spool

Flow control spools

Flow control spool closed neutral position

Schematic

Symmetric flow control spools

Part number

11177686 PVE 65 [17.17] 65 [17.17] 65 [17.17] 65 [17.17] 11177738 PVE 95 [25.10] 95 [25.10] 95 [25.10] 95 [25.10] 11177750 PVE 130 [34.34] 130 [34.34] 130 [34.34] 130 [34.34] 11177448 PVE 180 [47.55] 180 [47.55] 180 [47.55] 180 [47.55] 11177798 PVE 240 [63.40] 240 [63.40] 240 [63.40] 240 [63.40] 11178733 PVE 320 [84.54] 320 [84.54] 320 [84.54] 320 [84.54]

11177058* PVE 400 [105.67] 400 [105.67] 400 [105.67] 400 [105.67]

11184159 PVH/PVHC 65 [17.17] 65 [17.17] 65 [17.17] 65 [17.17] 11184846 PVH/PVHC 95 [25.10] 95 [25.10] 95 [25.10] 95 [25.10] 11182643 PVH/PVHC 130 [34.34] 130 [34.34] 130 [34.34] 130 [34.34] 11182640 PVH/PVHC 180 [47.55] 180 [47.55] 180 [47.55] 180 [47.55] 11182638 PVH/PVHC 240 [63.40] 240 [63.40] 240 [63.40] 240 [63.40] 11182635 PVH/PVHC 320 [84.54] 320 [84.54] 320 [84.54] 320 [84.54]

11182621

Up to 500 l/min in combination with PVB 256 3-way Turbo Compensator feature

Actuation Flow - l/min (US gal/min)

A→T P→A P→B B→T

PVH/PVHC 400 [105.67] 400 [105.67] 400 [105.67] 400 [105.67]

Asymmetric spools

Part number

Please contact your Danfoss Power Solutions representative if one of these variants is needed.

Actuation Flow - l/min (US gal/min)

A→T P→A P→B B→T

PVH/PVHC 65 [17.17] 65 [17.17] 130 [34.34] 130 [34.34] PVH/PVHC 95 [25.10] 95 [25.10] 180 [47.55] 180 [47.55] PVH/PVHC 130 [34.34] 130 [34.34] 240 [63.40] 240 [63.40] PVH/PVHC 180 [47.55] 180 [47.55] 320 [84.54] 320 [84.54] PVH/PVHC 240 [63.40] 240 [63.40] 400 [105.67] 400 [105.67]

Flow control spool throttled open neutral position

Schematic

52 | © Danfoss | July 2021 BC220686485279en-000510

P109179

Technical Information

PVG 128/256 Technical Information

PVBS Main Spool

Symmetric flow control spools

Part number

11182537 PVE 95 [25.10] 95 [25.10] 95 [25.10] 95 [25.10] 11178290 PVE 130 [34.34] 130 [34.34] 130 [34.34] 130 [34.34] 11178310 PVE 180 [47.55] 180 [47.55] 180 [47.55] 180 [47.55] 11182619 PVE 240 [63.40] 240 [63.40] 240 [63.40] 240 [63.40] 11182618 PVE 320 [84.54] 320 [84.54] 320 [84.54] 320 [84.54] 11182617 (1) PVH/PVHC 65 [17.17] 65 [17.17] 65 [17.17] 65 [17.17] 11183604 PVH/PVHC 95 [25.10] 95 [25.10] 95 [25.10] 95 [25.10] 11183602 PVH/PVHC 130 [34.34] 130 [34.34] 130 [34.34] 130 [34.34] 11183441 PVH/PVHC 180 [47.55] 180 [47.55] 180 [47.55] 180 [47.55] 11178318 PVH/PVHC 240 [63.40] 240 [63.40] 240 [63.40] 240 [63.40] 11180718 PVH/PVHC 320 [84.54] 320 [84.54] 320 [84.54] 320 [84.54] 11178984 (2) PVH/PVHC 400 [105.67] 400 [105.67] 400 [105.67] 400 [105.67]

Please contact your Danfoss Power Solutions representative if one of these variants is needed.

Up to 500 l/min in combination with PVB 256 3-way Turbo Compensator feature

Actuation Flow - l/min (US gal/min)

A→T P→A P→B B→T

PVE 65 [17.17] 65 [17.17] 65 [17.17] 65 [17.17]

PVE 400 [105.67] 400 [105.67] 400 [105.67] 400 [105.67]

Asymmetric flow control spools

Part number

Please contact your Danfoss Power Solutions representative if one of these variants is needed.

Actuation Flow - l/min (US gal/min)

A→T P→A P→B B→T

- 65 [17.17] 65 [17.17] 130 [34.34] 130 [34.34]

- 95 [25.10] 95 [25.10] 180 [47.55] 180 [47.55]

- 130 [34.34] 130 [34.34] 240 [63.40] 240 [63.40]

- 180 [47.55] 180 [47.55] 320 [84.54] 320 [84.54]

- 240 [63.40] 240 [63.40] 400 [105.67] 400 [105.67]

Single acting cylinder flow control spool closed neutral position, flow control B port

Schematic

Part number

(1) PVE - - 95 [25.10] 95 [25.10] (1) PVE - - 130 [34.34] 130 [34.34] (1) PVE - - 180 [47.55] 180 [47.55] (1) PVE - - 240 [63.40] 240 [63.40] (1) PVE - - 320 [84.54] 320 [84.54]

(1)

Actuation Flow - l/min (US gal/min)

A→T P→A P→B B→T

PVE - - 65 [17.17] 65 [17.17]

PVE - - 400 [105.67] 400 [105.67]

Danfoss | July 2021 BC220686485279en-000510 | 53

P109180

Technical Information

PVG 128/256 Technical Information

PVBS Main Spool

Part number

(1) PVH/PVHC - - 65 [17.17] 65 [17.17] (1) PVH/PVHC 95 [25.10] 95 [25.10] (1) PVH/PVHC - - 130 [34.34] 130 [34.34] (1) PVH/PVHC - - 180 [47.55] 180 [47.55] (1) PVH/PVHC - - 240 [63.40] 240 [63.40] (1) PVH/PVHC - - 320 [84.54] 320 [84.54] (1)(2) PVH/PVHC - - 400 [105.67] 400 [105.67]

Please contact your Danfoss Power Solutions representative if one of these variants is needed.

Up to 500 l/min in combination with PVB 256 3-way Turbo Compensator feature

Actuation Flow - l/min (US gal/min)

A→T P→A P→B B→T

Flow control spool closed neutral position with A-float

Schematic

Symmetric flow control spools

Part number

(1) PVE 95 [25.10] 95 [25.10] 95 [25.10] 95 [25.10] (1) PVE 130 [34.34] 130 [34.34] 130 [34.34] 130 [34.34] (1) PVE 180 [47.55] 180 [47.55] 180 [47.55] 180 [47.55] (1) PVE 240 [63.40] 240 [63.40] 240 [63.40] 240 [63.40] (1) PVE 320 [84.54] 320 [84.54] 320 [84.54] 320 [84.54] (1) PVH/PVHC 65 [17.17] 65 [17.17] 65 [17.17] 65 [17.17] (1) PVH/PVHC 95 [25.10] 95 [25.10] 95 [25.10] 95 [25.10] (1) PVH/PVHC 130 [34.34] 130 [34.34] 130 [34.34] 130 [34.34] (1) PVH/PVHC 180 [47.55] 180 [47.55] 180 [47.55] 180 [47.55] (1) PVH/PVHC 240 [63.40] 240 [63.40] 240 [63.40] 240 [63.40] (1) PVH/PVHC 320 [84.54] 320 [84.54] 320 [84.54] 320 [84.54]

Please contact your Danfoss Power Solutions representative if one of these variants is needed.

Actuation Flow - l/min (US gal/min)

A→T P→A→F P→B B→T

PVE 65 [17.17] 65 [17.17] 65 [17.17] 65 [17.17]

54 | © Danfoss | July 2021 BC220686485279en-000510

109.7 [4.32]

113 [4.45]

133.5 [5.26]

Weight: 1.5 kg [3.3 lbs]

Technical Information

PVG 128/256 Technical Information

PVM Manual Activation

PVM Lever dimensions

The PVM manual activation cover is intended for use on any work section where the operator has to have the ability to interact with the spool manually.

The adjustment screws are intended for limiting the spool travel and thereby the maximum achievable flow.

Danfoss | July 2021 BC220686485279en-000510 | 55

37°

30°

37°

30°

With float

Standard

Technical Information

PVG 128/256 Technical Information

PVM Manual Activation

PVM Technical Data

Handle Installation

Technical data

Spool displacement Torque

From neutral position PVM+PVMD 12 N·m 106 lb·in

PVM+PVE 12 N·m 106 lb·in PVM+PVH 30 N·m 265 lb·in

Max. spool travel PVM+PVMD 30 N·m 265 lb·in

PVM+PVE 30 N·m 265 lb·in

PVM+PVH 91 N·m 805 lb·in Standard Control Range 30° Control lever range + float position 37°

Part numbers for PVM Manual Activation

Part number Material Adjustment screws Lever base and lever B-port Gauge

11176644 Cast iron - Yes No 11175317 Cast iron Yes Yes G1/8" BSP 11176635 Cast iron Yes Yes 3/8"-24 UNF

56 | © Danfoss | July 2021 BC220686485279en-000510

33 43.7

100

Weight: 1.9 kg [4.2 lbs]

100

125

150

175

200

225

250

275

300

325

[l/min] [US gal/min]

[mm]

PVM

01234567

[in]

PVM

00.040.080. 120.160.200. 240.28

PVH

bar

5791113

0.31

910

350

375

400

0.350.39

100

105

[mm]

PVM

1098765

[in]

PVM

0.390.350.310.280. 240.20

PVH

131197

0.16

321

0.120.080.04

425

450

475

500

110

115

120

125

130

bar

PVH

psi

73102131160189

218

PVH

189160131102

218

psi

P109247

Technical Information

PVG 128/256 Technical Information

PVH Hydraulic Actuation

PVH dimensions

The PVH hydraulic activation cover is intended for use on any work section where the operator wants to have a possibility to interact with the main spool via a hydraulic joystick.

Inlet with Hydraulic Pilot Pressure is needed.

Danfoss | July 2021 BC220686485279en-000510 | 57

Technical Information

PVG 128/256 Technical Information

PVH Hydraulic Actuation

PVH Technical Data

Technical data

Main Spool Spring control pressure range 5 – 15 bar [73 – 218 psi] Pilot oil pressure range between 20 and 25 bar 20 – 25 bar [290 – 362 psi] Max. pressure on port T (the hydraulic remote control

lever should be connected directly to tank).

Part numbers for PVH Hydraulic Actuation

Part number Material Connection

11187777 Aluminum G1/4" BSP 11187776 Aluminum 9/16"-18 UNF

10 bar [145 psi]

58 | © Danfoss | July 2021 BC220686485279en-000510

100

43.7100.5

Weight: 2.6 kg [5.7 lbs]

P109249

Technical Information

PVG 128/256 Technical Information

PVHC Electro-Hydraulic Actuator type

The PVHC is an electrical actuator module for main spool control. The PVHC control is done by dual Pulse Width Modulated (PVM) high current supply 100-400 Hz PWM

control signals. The hysteresis is affected by viscosity, friction, flow forces, dither frequency and modulation frequency.

The spool position will shift when conditions are changed such as temperature change. Inlet with Hydraulic Pilot Pressure is needed.

Dither frequency with a certain amplitude is needed for optimal application performance.

Schematic

Danfoss | July 2021 BC220686485279en-000510 | 59

0 0

200 100

400 200

600 300

800 400

1000

500

800 400

600 300

400 200

200 100

1000

500

[Current in mA][Current in mA]

@12V @24V

1600

800

1400

700

1200

600

1200

600

1600

800

1400

700

Spool stroke, mm

PVHC characteristics – Spool stroke vs current

Ideal curve

Hysteresis

P109250

Technical Information

PVG 128/256 Technical Information

PVHC Electro-Hydraulic Actuator type

PVHC Technical Data

Technical data

Main Spool Spring control pressure range

Pilot oil pressure range between 20 and 25 bar

Max. pressure on port T 10 bar [145 psi] PVHC 12 Volt Current Input 0-1500 mA PVHC 24 Volt Current Input 0-750 mA Ambient Temperature Range -30°C to 80°C [-22 °F to 176°F] Medium Temperature Range -20°C to 80°C [-4 °F to 176°F] Oil contamination according to ISO

4406 Maximum

5-15 bar [73-218 psi]

20-25 bar [290-362 psi]

23/19/16

Part numbers for PVHC Electro-Hydraulic Actuator types

Part number Power supply Connector type

11187757 12V AMP 11187772 12V DEUTSCH 11187774 24V AMP 11187775 24V DEUTSCH

60 | © Danfoss | July 2021 BC220686485279en-000510

100

32 17

Weight: 1.5 kg [3.3 lbs]

Technical Information

PVG 128/256 Technical Information

PVMD Cover Manual Actuation Only

PVMD dimensions

The PVMD cover is used when work section is purely mechanical activated.

PVMD Part Numbers

Part numbers for PVMD Covers

Part number Material

11187779 Aluminum

Danfoss | July 2021 BC220686485279en-000510 | 61

Technical Information

PVG 128/256 Technical Information

PVE Electrical Actuator

PVE Series 7 Electrical Actuator

The analog PVE Series 7 is an electro-hydraulic actuator used to control a single work section of a PVG proportional valve group. The PVE Series 7 actuator program includes variants with different performance levels and features for PVG 128/256.

The actuator positions the main spool in a PVG work section in order to control either the flow or the pressure of the oil distributed to/from the work function. The control signal to the actuator is an analog voltage signal, enabling the user to operate the work function remotely by means of a joystick, a controller or the similar.

The electro-hydraulic solenoid valve bridge of the actuator is available in different designs utilizing different regulation principles, depending on performance variant. The actuator positions the main spool by distributing pilot oil pressure to either side of it, pressurizing one side by pilot pressure while relieving the opposite side to tank and vice versa, as illustrated below. All proportional actuators feature a closedloop spool control and continuous fault monitoring.

The analog PVE Series 7 actuator program for PVG 128/256 features two different main hydraulic principle variants (PVEO and PVEH). The different hydraulic principles combined with the different solenoid valve regulation principles determine whether the actuator controls the spool proportionally according to a demand signal or ON/OFF according to a voltage signal. The voltage control characteristic of the PVE Series 7 actuators is shown in the figure below to the left.

PVG 256 with PVEO

Technical Information

PVG 128/256 Technical Information

PVE Electrical Actuator

PVG 256 with PVEH

Danfoss | July 2021 BC220686485279en-000510 | 63

P109195

P109198

Technical Information

PVG 128/256 Technical Information

PVE Variant Overview

PVEO Series 7 PVEH Series 7

Symbol Description

PVEO

ON/OFF voltage control for non-proportional functions.

Neutral position or max. spool stroke according to control

•

signal Variants available with 12 V dc or 24 Vdc supply voltage

•

Variants available with DEUTSCH or DIN/Hirschmann

•

connectors To be used with standard PVE pilot oil pressure of 13.5 bar

•

LED only indicating Power ON or Power OFF

•

PVEH Proportional spool control for functions with high performance and reaction demands.

All variants with 11-32 Vdc multi-voltage power supply

•

Variants available with DEUTSCH or DIN/Hirschmann

•

connectors To be used with standard PVE pilot oil pressure of 13.5 bar

•

All variants with LED indicating error state and active or

•

passive fault monitoring Variants available with Float (-F) or 0-10 V dc control signal (-

•

U) functionality

PVEO

SV2SV1

LED Circuit

LED

Technical Information

PVG 128/256 Technical Information

PVE Variant Overview

PVEO

The PVEO actuator is a non-proportional ON/OFF control actuator with open-loop spool control primarily used to control simple ON/OFF work functions where a proportional control of speed or oil flow is not a requirement

PVEO

PVEO functionality

The standard PVEO functionality includes the simplest electric circuit of the PVG 128/256 actuator program, using a fixed 12 Vdc or 24 Vdc supply voltage or signal voltage and a simple LED circuit to control the LED light indicating Power ON/OFF.

An energization of solenoid valve SV1 and a simultaneous de-energization of SV2 will cause the main spool to move to the right direction and vice versa. If both SV1 and SV2 are energized or de-energized simultaneously, the main spool stays locked in its neutral position.

Danfoss | July 2021 BC220686485279en-000510 | 65

P109195

133 [5.24]

65 [2.56]

102 [4.0]

P109127

Technical Information

PVG 128/256 Technical Information

PVE Variant Overview

PVEO Schematics and Dimensions

PVEO schematics

PVEO

Dimensions

PVEO Connector height

DEU = 24 mm [0.94 in] DIN = 13 mm [0.51 in]

Weight: 2 kg [4.4 lbs]

PVEO Technical Data

Control Specification

Description Type Value

Supply Voltage (Udc) Rated 12 Vdc 24 Vdc

Range 11 to 15 Vdc 22 to 30 Vdc

Max. ripple 5% Current Consumption Typical 708 mA 361 mA

Minimum 430 mA 220 mA

Maximum 944 mA 482 mA

Operating Conditions

Description Type Value

Pilot Pressure Nominal 13.5 bar [196 psi]

Minimum 10.0 bar [145 psi]

Maximum 15.0 bar [218 psi]

100

Time

T0 T1

P109128

Spool position Demand Signal (Us) Supply Voltage (U dc)

Spool pos. [%]

Technical Information

PVG 128/256 Technical Information

PVE Variant Overview

Operating Conditions (continued)

Description Type Value

Oil Consumption Neutral 0.0 l/min [0.0 gal/min]

Max T-port pressure Static 25 bar [365 psi] Max T-port pressure Intermittent 40 bar [580 psi] Storage Temperature Ambient -50 to +90°C [-58 to +194°F] Operating Temperature Ambient -40 to +90°C [-40 to +194°F] Oil Viscosity Operating range 12 to 75 cSt [65 to 347 SUS]

Oil Cleanliness Maximum 18/16/13 (according to ISO 4406)

LED characteristic

Color LED characteristic Description

Green constant Power ON

Locked position 0.0 l/min [0.0 gal/min] Actuating 0.9 l/min [0.24 gal/min]

Minimum 4 cSt [39 SUS] Maximum 460 cSt [2128 SUS]

PVEO 128/256 Reaction Times

PVEO

Reaction PVG128 PVG 256

T1 A-port – Neutral to maximum spool stroke @ Constant Udc 375 ms 375 ms T1 B-port – Neutral to maximum spool stroke @ Constant Udc 520 ms 520 ms T2 A-port – Maximum spool stroke to neutral @ Constant Udc 350 ms 350 ms T2 B-port – Maximum spool stroke to neutral @ Constant Udc 600 ms 600 ms

PVEO Variants for PVG

PVG 128/256 Variants

Part number Type

11186328 PVEO 1x4 DEU 67 12 Vdc Standard 11186330 PVEO 1x4 DEU 67 24 Vdc Standard

Connector

IP Udc

Functionality

Danfoss | July 2021 BC220686485279en-000510 | 67

Micro-

controller

Power Supply

LED

Error

Udc

NC1 NC3

LVDT

NO2 NO4

Special Features

Technical Information

PVG 128/256 Technical Information

PVE Variant Overview

PVG 128/256 Variants (continued)

Part number Type

11186331 PVEO 1x4 DIN 65 12 Vdc Standard 11186342 PVEO 1x4 DIN 65 24 Vdc Standard

PVEH

PVEH Overview

The PVEH actuator is a proportional control actuator with closed-loop spool control primarily used to control work functions with high performance requirements.

The PVEH functionality includes an electric circuit with a closed-loop logic. An embedded microcontroller processes the signal voltage and the LVDT feedback signal and regulates the solenoid valves accordingly. Features such as active or passive fault monitoring, LED indicating fault state, error output pin and Power Save are all default PVEH features.

A continuous modulation of solenoid valves NC1 and NO4 together, with a simultaneous energization of NO2 and de-energization of NC3, causes the main spool to move to the right direction and vice versa. When the main spool is stroked to the far right, a simultaneous energization of both NO2 and NO4 and de-energization of both NC1 and NC3 locks the main spool in its stroked position. An emergency stop activated when the spool is stroked will cause all solenoid valves to de-energize causing the main spool to move back to its neutral position by means of the main spool neutral spring and the hydraulic principle.

Connector

IP Udc

Functionality

PVEH

P109198

102 [4.01]

65 [2.56]

121 [4.76]

P109158

Technical Information

PVG 128/256 Technical Information

PVE Variant Overview

PVEH Schematics and Dimensions

Schematics

PVEH

Dimensions

PVEH Connector height

DEU = 24 mm [0.94 in] DIN = 13 mm [0.51 in]

2 kg [4.4]

PVEH Technical Data

Control Specification

Description Type Value

Supply Voltage (UDC) Rated Range 11 to 32 V

Max. ripple 5%

Signal Voltage PWM (US) Neutral US = 0.5 UDC = 50% DUT

Q: P to A US = (0.5 to 0.25) UDC = 50% to 25% DUT

Q: P to B US = (0.5 to 0.75) UDC = 50% to 75% DUT Input Impedance Rated 12 kΩ Input Capacitance Rated 1 nF

Danfoss | July 2021 BC220686485279en-000510 | 69

Technical Information

PVG 128/256 Technical Information

PVE Variant Overview

Current consumption

Description @ 12 V

PWM Frequency (US) recommended > 1000 Hz > 1000 Hz Current Consumption 540 mA 270 mA Power Save 25 mA @ UDC = 32 V

Pilot pressure

Minimum Nominal Maximum

10.0 bar [145 psi] 13.5 bar [196 psi] 15.0 bar [218 psi]

Fluid consumption

Neutral Locked position Actuating

0.0 l/min 0.0 l/min 0.7 l/min

Technical specification

Parameter Minimum Recommended range Maximum Fluid viscosity Fluid cleanliness Storage temperature Operating temperature

Max. T-port pressure static / intermittent

4 mm2/s [39 SUS] 12 to 75 mm2/s [65 to 347 SUS] 460 mm2/s [2128 SUS]

18/16/13 (according to ISO 4406)

Ambient: -50 to 90°C [-58 to 194°F]

Ambient: -40 to 90°C [-40 to 194°F]

25 / 40 bar

[365 / 580 psi]

@ 24 V

[0.18 US gal/min]

LED Characteristic

Color LED Characteristic Description

Green constant No error – Actuating

Green flashing @ 1.5 Hz Neutral – Power save

Red constant Internal error

Red flashing @ 1.5 Hz External or Float error

Yellow Disable mode

100

Time

T0 T1

P109128

Spool position Demand Signal (Us) Supply Voltage (U dc)

Spool pos. [%]

Us [%]

100

Spool Position [%]

100

(0.75 ∙ U dc)

(0.50 ∙ U dc)

vFixed pos.

Spool Position

Technical Information

PVG 128/256 Technical Information

PVE Variant Overview

PVEH for PVG 128/256 Reaction Times

PVEH

Reaction PVG 128/256

T0 – Boot up 80 ms T1 – Neutral to maximum spool stroke @ Power ON 400 ms T2 – Maximum spool stroke to neutral @ Power OFF 300 ms T1 – Neutral to maximum spool stroke @ Constant Udc 380 ms T2 – Maximum spool stroke to neutral @ Constant Udc 270 ms T0 + Deadband 130 ms

For more information on reaction times, see Reaction Times.

PVEH Hysteresis and Ripple

Spool position vs. supply (%)

Description Type PVEH

Hysteresis (h) Rated [%] <2 Steady state ripple @ fixed Us (v) Rated [mm] 0.0

Danfoss | July 2021 BC220686485279en-000510 | 71

Technical Information

PVG 128/256 Technical Information

PVE Variant Overview

PVEH Variants for PVG

PVG 128/256 variants

Part number Type

11186325 PVEH 1x4 DEU 67 Passive Standard 11186326 PVEH 1x4 DEU 67 Active Standard 11186321 PVEH 1x4 DIN 65 Passive Standard 11186322 PVEH 1x4 DIN 65 Active Standard

Connector

Fault monitoring

Functionality

3 4

5 6

1 2

2 3

Technical Information

PVG 128/256 Technical Information

Connector Overview

PVEO 4-pin Connector

Pinout Pin 1 Pin 2 Pin 3 Pin 4

1x4 DEUTSCH UDC_A GND GND UDC_B 1x4 DIN UDC_A UDC_B - GND

PVEH/PVEH-U

Pinout Pin 1 Pin 2 Pin 3 Pin 4

1x4 DEUTSCH U 1x4 DIN U

PVEH-FLA 6-pin Connector

Pinout Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6

1x6 DEUTSCH U

Error Float - GND U

Error GND U U

Error GND

Connector diagrams

1x4 DEUTSCH

PVE Connector Direction

1x4 DIN

1x6 DEUTSCH

Danfoss | July 2021 BC220686485279en-000510 | 73

Technical Information

PVG 128/256 Technical Information

Fault Monitoring and Reaction

All proportional control PVG 128/256 actuators feature:

Integrated fault monitoring

•

Detecting spool stroke inconsistencies

•

Detecting internal hardware defects

•

Detecting demand signal inconsistencies

•

Fault reaction depending on the type of fault monitoring

•

Generic

‒

Specific

‒

Passive and active fault monitoring refers to whether or not the actuator is reacting on the error when it is detected.

Active fault monitoring

No matter what kind of error is detected, the solenoid valves will be disabled and the operation that the valves/spool controls will stop immediately and spool will go to neutral position. Active fault monitoring keeps a “memory” of the error, even if it is no longer registered. The active fault monitoring does not have Auto Recovery because of this “memory” and a reboot/restart will therefore be required to reactivate the solenoid valves.

With an active fault monitoring the following scenarios will take place when an error is detected/occurs:

•

The LED light will switch from green to red and the error pin output will go high

•

The solenoid valves will be disabled and the operation that the valves/spool controls will stop immediately

•

The active fault monitoring does not have Auto Recovery, so when the error is fixed/no longer is registered a reboot/restart of the PVE is required to reactivate it.

Generic Fault Reaction

Passive fault monitoring

Passive fault monitoring does not disable the solenoid valves when an error is detected. It will continue to operate despite that an error was detected. When the error no longer is registered the passive fault monitoring will “forget” the error and continue as if the error was never there.

With a passive fault monitoring the following conditions will happen when an error is detected/occurs:

The LED light will switch from green to red and the error pin output will go high

•

The solenoid valves will continue operating at the set point given at the time of the error

•

Only exception is if the error is caused by the supply voltage (UDC) being either above or below

‒

the allowed range or if the temperature measured on the internal electronics board is higher than allowed. In these cases, the solenoid valves will be disabled.

All PVE actuators with fault monitoring are triggered by the following main events:

Control Signal Monitoring

Transducer/LVDT Supervision

Supervision of Spool Position

The Control signal voltage (US) is continuously monitored.

The permissible range is between 15% and 85% of the supply voltage (UDC).

Outside this range the PVE will switch into an error state. A disconnected U

pin (floating) is recognized as a neutral set point.

The internal LVDT wires are monitored. If the signals are interrupted or short-

circuited, the PVE will switch into an error state.

The actual position must always correspond to the demanded position (US).

If the actual spool position is further out from neutral than the demanded

spool position or in opposite direction, the PVE will switch into an error state.

Spool position closer to neutral and in same direction will not cause an error

state – the situation is considered in control.

Technical Information

PVG 128/256 Technical Information

Fault Monitoring and Reaction

Float Position Monitoring

Float position must be entered or left within a time limit. A too high delay on the 1x6 pin float PVE will cause an error state – this is relevant for the 1x6 pin PVEH-F actuators only.

Temperature Monitoring

When the temperature is too high the PVE LED will light constant red and solenoid valves will be disabled.

PVEH Fault Reaction Overview

Description Monitoring LED Solenoid valves Error pin output Fault reaction

Spool not at setpoint

Unable to reach float position

Active

Disabled High 500

Passive - High 250

Active

Disabled High 1000

Passive - High 1000

U dc > max. Active Disabled - -

Passive Disabled - -

U dc < min. Active Disabled - -

Passive Disabled - -

Us out of range Active

Disabled High 500

Passive - High 250

LVDT error Active

Disabled High 500

Passive - High 250

Temp > max. Active

Disabled High 250

Passive Disabled High 250

Does not have Auto Recovery

time (ms) PVEH

Danfoss | July 2021 BC220686485279en-000510 | 75

Time

Udc

GND

P109152

Demand Signal (Us) Supply Voltage (Udc)

Supply Voltage (Udc)

Technical Information

PVG 128/256 Technical Information

Functionality Overview

Standard and Fixed US 0-10 Vdc

All standard proportional actuator variants PVEH can be controlled by an analog signal voltage (Us) or a PWM controlled signal voltage (Us) proportional to the supply voltage (Udc).

PVEO

Description Type Value

Supply voltage (Udc) Rated 12 Vdc 24 Vdc

PVEH

Description Type Value

Supply voltage (Udc) Rated 11 to 32 Vdc

Signal voltage (Us) Neutral Us = 0.5 ∙ Udc

Range 11 to 15 Vdc 22 to 30 Vdc Max. ripple 5%

Range 11 to 32 Vdc

Max. ripple 5%

Q: P to A US = (0.5 to 0.25) ∙ Udc

Q: P to B US = (0.5 to 0.75) ∙ Udc

The PVEH-U variants are controlled by a fixed 0-10 Vdc signal voltage (Us), directly compatible with standard PLC control.

PVEH-U

Description Type Value

Supply voltage (Udc) Rated 11 to 32 Vdc

Range 11 to 32 Vdc

Max. ripple 5%

Signal voltage (Us) Neutral Us = 5 V

Q: P to A 5 V to 2.5 V

Q: P to B 5 V to 7.5 V

PWM Voltage Control

The PVEH actuator variants can be controlled by a PWM controlled signal voltage (Us) proportional to the supply voltage (Udc).

The V1 and V2 must be symmetrical around Udc/2 and V1 must be equal to or less than Udc.

Technical Information

PVG 128/256 Technical Information

Functionality Overview

PVEH Control specification

Description Type Value

Supply Voltage (Udc) Rated 11 to 32 Vdc

Signal Voltage PWM (Us) Neutral Us = 50% DUT

PWM Frequency (Us) Recommended > 1000 Hz

Range 11 to 32 Vdc Max. ripple 5%

Q: P to A Us = 50% to 25% DUT Q: P to B Us = 50% to 75% DUT

Danfoss | July 2021 BC220686485279en-000510 | 77

100

125

150

175

200

225

250

275

300

325

[l/min]

[mm]

PVM

1234

[in]

PVM

00.040.080.120.16

0.20

0.240.28

PVEH-FLA

0.05

0.1

0.150.2

0.25

0.31

910

350

375

400

0.35

0.39

0.43

0.47

100

105

Technical Information

PVG 128/256 Technical Information

Functionality Overview

Float A-Port (-FLA)

The Float A-Port functionality enables the proportional PVEH-FLA actuator variants to enter the main spool into a float position. The PVE actuators with Float A-Port functionality is compatible with the dedicated main spools with electronic float in A-port.

PVE Type PVBS Type Standard Flow Control Float Control

PVEH-FLA (1x6 pin) Deadband 0.8 mm Us = (0.25 → 0.75) ∙ Udc U dc to dedicated float pin

Max. A-port flow 5.5 mm

(UF)

PVE Power Save

All proportional actuator variants feature a Power Save mode, de-energizing the solenoid valve bridge. The Power Save mode is entered when the signal voltage (Us) and the LVDT spool position has been in neutral for 750 ms. As soon as the signal voltage (Us) or the LVDT spool position is out of neutral the PVE will leave its Power Save mode and re-energize the solenoid valve bridge as usual.

The Power Save mode results in increased power efficiency by reducing the current consumption of the

PVE actuators in neutral position. The Power Save mode has no effect on the performance of the PVE actuator.

Micro-

controller

Power Supply

LED

Error

Udc

NC1 NC3

LVDT

NO2 NO4

Special Features

Technical Information

PVG 128/256 Technical Information

Special Features

Dedicated Float Pin (UF)

The Dedicated Float Pin (UF) feature is related to the PVEH-FLA actuator variant enabling the user to move the main spool into its float position by power. The PVEH-FLA uses 1x6 pin AMP orDEUTSCH connectors.

•

Normal operation: Low or not connected

•

High Float

•

Input range: U

•

Max. voltage: 32 V

PVEH-FLA functionality diagram

Disable Mode

The PVEH-U actuator variants controlled by a fixed 0-10 VDC signal voltage (US), feature the ability to enter a disable mode. This causes the counteracting force on the main spool created by the solenoid valve bridge to deactivate, when using Manual OverRide (MOR).

The disable mode is entered by sending a signal voltage (Us) of 16.2% of 10 VDC when in Power Save.

Danfoss | July 2021 BC220686485279en-000510 | 79

100

Time

T0 T1

P109128

Spool position Demand Signal (Us) Supply Voltage (U dc)

Spool pos. [%]

Technical Information

PVG 128/256 Technical Information

Performance Overview

PVG 128/256 Reaction Times

Reaction

T0 – Boot-up [ms] T1 – Neutral to max. spool stroke T2 – Max. spool stroke to neutral T1 – Neutral to max. spool stroke T2 – Max. spool stroke to neutral

PVEO

Reaction PVG128 PVG 256

T1 A-port – Neutral to maximum spool stroke @ Constant

375 ms 375 ms

Udc T1 B-port – Neutral to maximum spool stroke @ Constant

520 ms 520 ms

Udc T2 A-port – Maximum spool stroke to neutral @ Constant

350 ms 350 ms

Udc T2 B-port – Maximum spool stroke to neutral @ Constant

600 ms 600 ms

Udc

PVEH

Reaction PVG 128 PVG 256

T0 – Boot up 80 ms 80 ms T1 – Neutral to maximum spool stroke @ Power ON 400 ms 380 ms T2 – Maximum spool stroke to neutral @ Power OFF 300 ms 270 ms T1 – Neutral to maximum spool stroke @ Constant Udc 320 ms 320 ms T2 – Maximum spool stroke to neutral @ Constant Udc 250 ms 250 ms T0 + Deadband 130 ms 130 ms

Us [%]

100

Spool Position [%]

100

(0.75 ∙ U dc)

(0.50 ∙ U dc)

vFixed pos.

Spool Position

Technical Information

PVG 128/256 Technical Information

Performance Overview

Hysteresis and Ripple

Type Hysteresis (h) Steady state ripple @ fixed Us (v)

PVEH 256 1.5 0.0

Rated [%] Rated [mm]

Oil Consumption

Type Neutral Locked position Actuating

[l/min]

PVEO 0.0 0.0 0.9 PVEH 0.0 0.0 0.7

Danfoss | July 2021 BC220686485279en-000510 | 81

PVSI with or without LX connection

PVSI with P and T connections

PVGI Interface plate

Technical Information

PVG 128/256 Technical Information

PVSI/PVGI End and Interface Plates

The PVG PVGI Interface Plate act as an interface between the PVB 256/128 and PVB 32/16 basic modules which enables you to build a combo valve with PVB 256/128/32/16.

Optional the PVSI End Plate features additional P and T connection to accommodate an additional 600 l/min pump flow.

The PVS end plate variants are based on a generic platform with a selection of additional features, enabling you to tailor the PVSI/PVGI to suit the demands of any hydraulic system. Versions available with LX connection, and P and T connections. PVSI and PVGI are all in cast iron.

The generic PVSI/PVGI End and Interface Plates platform includes the following main variants:

•

PVSI with or without LX-connection

•

PVSI with P and T connections

•

PVSI Interface plate

Technical data

Max. rated pressure P-port continuous 350 bar [5076 psi]

P-port intermittent 400 bar [5800 psi] T-port static/dynamic 25/40 bar [363/580 psi]

Oil temperature Recommended 30 to 60°C [86 to 140°F]

Minimum -30°C [-22°F]

Maximum 90° [194°F] Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 → 347 SUS]

Minimum 4 mm2/s [39 SUS]

Maximum 460 mm2/s 23/19/16 Oil contamination

according to ISO 4406

Maximum 23/19/16

For more information about PVSI/PVGI End and Interface Plates, see:

PVSI with or without LX-connection on page 83 PVSI with P and T port connections on page 84 PVGI Interface Plate on page 85

138.9

91.4

14.8

148

207.7

159

Weight: 7 kg [15.4 lb]

PVSI with or without LX connection

Dimensions

P109227

Technical Information

PVG 128/256 Technical Information

PVSI/PVGI End and Interface Plates

PVSI with or without LX-connection

The PVSI made of Cast Iron work as an End Plate. The PVSI with LX connection enables another valves LS pressure to be shuttled to the pump when

needed. The LX port treads are with BSP or UNF tread.

Schematic

Technical data

Max. rated pressure P-port continuous 350 bar [5076 psi]

P-port intermittent 400 bar [5800 psi] T-port static/dynamic 25/40 bar [363/580 psi]

Oil temperature Recommended 30 to 60°C [86 to 140°F]

Minimum -30°C [-22°F]

Maximum 90° [194°F] Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 → 347 SUS]

Minimum 4 mm2/s [39 SUS]

Maximum 460 mm2/s 23/19/16 Oil contamination

according to ISO 4406

Maximum 23/19/16

Part numbers for PVSI End Plate with or without LX connection

Part number LX-port Mounting feet

11171419 - M12 11179950 G1/4"BSP M12 11179949 7/16-20 UNF M12

Danfoss | July 2021 BC220686485279en-000510 | 83

167.9

138.9

89.9

43.9

91.4

159

148

116

14.8

36.5

Weight: 7 kg [15.4 lb]

PVSI with P and T port connections

Dimensions

P109205

Technical Information

PVG 128/256 Technical Information

PVSI/PVGI End and Interface Plates

PVSI with P and T port connections

The PVSI with P and T port connections enables an additional 600 l/min pump flow to a PVG 128/256 valve.

Metric and SAE flange connections as well as BSP and UNF treaded ports.

Schematic

Technical data

Max. rated pressure P-port continuous 350 bar [5076 psi]

P-port intermittent 400 bar [5800 psi] T-port static/dynamic 25/40 bar [363/580 psi]

Oil temperature Recommended 30 to 60°C [86 to 140°F]

Minimum -30°C [-22°F]

Maximum 90° [194°F] Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 → 347 SUS]

Minimum 4 mm2/s [39 SUS]

Maximum 460 mm2/s 23/19/16 Oil contamination

according to ISO 4406

Part number P-port T-port Width Mounting

11171418 Metric Flange 1” Metric Flange 1-1/4” 37 mm M12 11179952 Thread Ports G1" BSP Thread Ports G1-1/4" BSP 44 mm M12 11171421 SAE Flange 1” UNF SAE Flange 1-1/4” UNF 37 mm M12 11171416 Thread Ports 1-5/16 UNF Thread Ports 1-5/8 UNF 44 mm M12

Maximum 23/19/16

feet

138.9

91.4

14.8

148

207.7

159 159

36.5

Weight: 7 kg [15.4 lbs]

Dimensions

PVGI Interface plate

P109184

Technical Information

PVG 128/256 Technical Information

PVSI/PVGI End and Interface Plates

PVGI Interface Plate

The PVGI Interface Plate connects the P-, T-, LS- and Pp-channels in PVB 128/256 to the corresponding channels in PVB 32 and/or 16 modules. T0 variant featured for PVB 32 modules equipped with T0.

Schematic

Technical data

Max. rated pressure P-port continuous 350 bar [5076 psi]

P-port intermittent 400 bar [5800 psi] T-port static/dynamic 25/40 bar [363/580 psi]

Oil temperature Recommended 30 to 60°C [86 to 140°F]

Minimum -30°C [-22°F]

Maximum 90° [194°F] Ambient temperature Recommended -30 to 60°C [-22 to 140°F] Oil viscosity Operating range 12 to 75 mm2/s [65 → 347 SUS]

Minimum 4 mm2/s [39 SUS]

Maximum 460 mm2/s 23/19/16 Oil contamination

according to ISO 4406

Part number T0 PVGI width Mounting feet

11171422 No 37 mm M12 11171423 Yes 37 mm M12

Maximum 23/19/16

Danfoss | July 2021 BC220686485279en-000510 | 85

Technical Information

PVG 128/256 Technical Information

PVAS

Stay Bolts for PVG 128 and 256 consists of 2 different kits:

1. PVAS containing 2 stay bolts – shall be placed in spec sheet under PVAS 1.

2. PVAS containing 3 stay bolts – shall be placed in spec sheet under PVAS 2.

Furthermore, O-rings is a part of the PVAS kits. The table below shows which 2 PVAS kits required for the specification according to number of PVB 128

and/or PVB 256.

Table 1

0 1 2 3 4 5 6 7

PVB 128

11187320+ 11188216

11187617+ 11188213

11187655+ 157B8023

11187684+ 157B8005

11187658+ 11188205

11187693+ 11188202

11187705+ 157B8009

11187692+ 157B8030

11187710+ 11188194

11187672+ 11188215

11187677+ 157B8022

11187678+ 157B8004

11187679+ 11188207

11187680+ 11188204

11187699+ 157B8008

11187703+ 157B8029

11187694+ 11188196

11187709+ 11188189

11187673+ 157B8003

11187681+ 157B8024

11187682+ 11188206

11187683+ 11188203

11187696+ 157B8028

11187688+ 157B8010

11187704+ 11188195

PVB 256

11187656+ 11188208

11187658+ 11188205

11187686+ 157B8027

11187705+ 157B8009

11187697+ 11188197

11187710+ 11188194

11187675+ 157B8026

11187685+ 157B8008

11187691+ 11188199

11187694+ 11188196

11187689+ 157B8062

11187696+ 157B8028

11187687+ 11188198

11187704+ 11188195

11187695+ 157B8082

11187697+ 11188197

11187690+ 157B8081

11187689+ 157B8062

Ex. For 2 PVB 256 and 1 PVB 128: PVAS 1 = 11187681 PVAS 2 = 157B8024 For PVG 128/256 in combination with PVG 16/32 please see PVAS for Combo.

Technical Information

PVG 128/256 Technical Information

PVAS

PVAS for Combo

Stay Bolts for PVG 128/256/16/32 consists of 2 different kits:

1. PVAS containing 2 stay bolts - please look in Table 2 and use P/N before + symbol.

2. PVAS containing 3 stay bolts – please look in Table 2 and write down the length in millimeters after

the + symbol.

Furthermore, O-rings is a part of the PVAS kits – no additional P/N needed.

Table 2.

0 1 2 3 4 5 6 7

PVB 128

0 11187676+

11187320+ 106

11187617+ 172

11187655+ 238

11187684+ 304

11187658+ 370

11187693+ 436

11187705+ 502

11187692+ 568

11187710+ 634

11187672+ 126

11187677+ 192

11187678+ 258

11187679+ 324

11187680+ 390

11187699+ 456

11187703+ 522

11187694+ 588

11187709+ 654

11187673+ 212

11187681+ 278

11187682+ 344

11187683+ 410

11187696+ 476

11187688+ 542

11187704+ 608

PVB 256

11187656+ 298

11187658+ 364

11187686+ 430

11187705+ 496

11187697+ 562

11187710+ 628

11187675+ 384

11187685+ 450

11187691+ 516

11187694+ 582

11187689+ 648

11187696+ 470

11187687+ 536

11187704+ 602

11187695+ 668

11187697+ 556

11187690+ 622

11187698+ 642

Table 3.

PVB 16

0 1 2 3 4 5 6 7 8 9 10

0 64 104 144 184 224 264 304 344 384 424 1 72 112 152 192 232 272 312 352 392 432 2 120 160 200 240 280 320 360 400 440 3 168 208 248 288 328 368 408 448 4 216 256 296 336 376 416 456

PVB 32

5 264 304 344 384 424 464 6 312 352 392 432 472 7 360 400 440 480 8 408 448 488 9 456 496 10 504

Example

For 2 PVB 256 and 1 PVB 128 and 1 PVB 32 and 2 PVB 16: PVAS 1 P/N = 11187681 from Table 2.

Danfoss | July 2021 BC220686485279en-000510 | 87

Technical Information

PVG 128/256 Technical Information

PVAS

PVAS 2 = 278 mm from Table 2 + 152 mm from Table 3 = 278+152 =430 mm which equals 157B8027 in Table 4.

PVAS Part Number Overview

Table 4.

Part number Accumulated module length in mm

157B8082 661-672 11188189 649-660 157B8062 637-648 11188194 625-636 157B8081 613-624 11188195 601-612 157B8061 589-600 11188196 577-588 157B8030 565-576 11188197 553-564 157B8010 541-552 11188198 529-540 157B8029 517-528 11188199 505-516 157B8009 493-504 11188200 481-492 157B8028 469-480 11188201 457-468 157B8008 445-456 11188202 433-444

157B8027 421-432

11188203 409-420 157B8007 397-408 11188204 385-396 157B8026 373-384 11188205 361-372 157B8006 349-360 11188206 337-348 157B8025 325-336 11188207 313-324 157B8005 301-312 11188208 289-300 157B8024 277-288 11188209 265-276 157B8004 253-264 11188210 241-252 157B8023 229-240 11188211 217-228 157B8003 205-216 11188212 193-204

Technical Information

PVG 128/256 Technical Information

PVAS

Table 4. (continued)

Part number Accumulated module length in mm

157B8022 181-192 11188213 169-180 157B8002 157-168 11188214 145-156 157B8021 133-144 11188215 121-132 157B8001 109-120 11188216 97-108 157B8031 85-96 11188217 73-84 157B8000 61-72 11188218 49-60 11188219 20-48

Danfoss | July 2021 BC220686485279en-000510 | 89

P109254

Technical Information

PVG 128/256 Technical Information

PVG Valve Schematics

Valve Schematics

PVG 128/256 Schematic with Basic End Plate

P109255

Technical Information

PVG 128/256 Technical Information

PVG Valve Schematics

PVG 128/256 with P- and T-connection end plate

Danfoss | July 2021 BC220686485279en-000510 | 91

349.9 [13.76]

579.1 [22.80]

111.3 [4.38]

47.5 [1.87]

100.5 [3.96]

78.5 [3.10]

131 [5.16]

68 [2.68]

43.5 [1.71]

189.4 [7.46]

P109644

349.9 [13.76]

567.4 [22.34]

99.6 [3.92]

47.5 [1.87]

100.5 [3.96]

78.5 [3.10]

131 [5.16]

68 [2.68]

189.4 [7.46]

43.5 [1.71]

P109645

Technical Information

PVG 128/256 Technical Information

Dimension Overview

Dimension Overview for PVG 128/256

PVEO

PVEH

349.9 [13.76]

590.5 [23.25]

122.7 [4.83]

47.5 [1.87]

100.5 [3.96]

78.5 [3.10]

131 [5.16]

68 [2.68]

43.5 [1.71]

187.2 [7.37]

P109646

181 [7.13]

105 [4.13]

140.5 [5.53]

64.5 [2.54]

119 [0.47]

25.4 [1.00]

28.6 [1.13]

13.9 [0.55]

8xM12-6H

8xM10-6H

P109647

Technical Information

PVG 128/256 Technical Information

Dimension Overview

PVHC

PVG 128/256 Dimensions

Danfoss | July 2021 BC220686485279en-000510 | 93

Technical Information

PVG 128/256 Technical Information

Dimension Overview

Number of PVB 256 Number of PVB 128

0 1 2 3 4 5 6 7 8 9

0 L1 mm - 98.5 164.5 230.5 296.5 362.5 428.5 494.5 560.5 626.5

[in] - [3.88] [6.48] [9.07] [11.67] [14.27] [16.87] [19.47] [22,07] [24.67]

L2 mm - 176.5 249.5 309.5 382.5 443.5 515.5 576.5 649.5 709.5

[in] - [6.95] [9.82] [12.19] [15.06] [17.46] [20.30] [22.70] [25.57] [27.93]

1 L1 mm 118.5 184.5 250.5 316.5 382.5 448.5 514.5 580.5 646.5 -

[in] [4.67] [7.26] [9.86] [12.46] [15.06] [17.66] [20.26] [22.85] [25.45] -

L2 mm 200.5 273.5 334.5 406.5 467.5 540.5 600.5 673.5 734.5 -

[in] [7.89] [10.77] [13.17] [16.00] [18.41] [21.28] [26.64] [26.52] [28.92] -

2 L1 mm 204.5 270.5 336.5 402.5 468.5 534.5 600.5 - - -

[in] [8.05] [10.65] [13.25] [15.85] [18.44] [21.04] [23.64] - - -

L2 mm 285.5 358.5 418.5 491.5 552.5 625.5 685.5 - - -

[in] [11.24] [14.11] [16.48] [19.35] [21.75] [24.63] [26.99] - - -

3 L1 mm 290.5 356.5 422.5 488.5 554.5 520.5 - - - -

[in] [11.44] [14.04] [16.63] [19.23] [21.83] [24.43] - - - -

L2 mm 370.5 443.5 503.5 576.5 637.5 709.5 - - - -

[in] [14.59] [17.46] [19.82] [22.70] [25.10] [27.93] - - - -

4 L1 mm 376.5 442.5 508.5 574.5 640.5 - - - - -

[in] [14.82] [17.42] [20.02] [22.62] [25.22] - - - - -

L2 mm 467.5 528.5 600,5 661.5 734.5 - - - - -

[in] [18.40] [20.81] [23.64] [26.04] [28.92] - - - - -

5 L1 mm 462.5 528.5 594.5 660.5 - - - - - -

[in] [18.21] [20.81] [23.41] [26.00] - - - - - -

L2 mm 552.5 612.5 685.5 746.5 - - - - - -

[in] [21.75] [24.11] [26.99] [29.39] - - - - - -

6 L1 mm 548.5 614.5 - - - - - - - -

[in] [21.59] [24.19] - - - - - - - -

L2 mm 637.5 697.5 - - - - - - - -

[in] [25.10] [27.46] - - - - - - - -

7 L1 mm 634.5 - - - - - - - - -

[in] [24.98] - - - - - - - - -

L2 mm 722.5 - - - - - - - - -

[in] [28.44] - - - - - - - - -

Technical Information

PVG 128/256 Technical Information

Dimension Overview

Specifications example

Danfoss | July 2021 BC220686485279en-000510 | 95

Danfoss Power Solutions GmbH & Co. OHG

Krokamp 35 D-24539 Neumünster, Germany Phone: +49 4321 871 0

Danfoss Power Solutions ApS

Nordborgvej 81 DK-6430 Nordborg, Denmark Phone: +45 7488 2222

Danfoss Power Solutions (US) Company

2800 East 13th Street Ames, IA 50010, USA Phone: +1 515 239 6000

Danfoss Power Solutions Trading (Shanghai) Co., Ltd.

Building #22, No. 1000 Jin Hai Rd Jin Qiao, Pudong New District Shanghai, China 201206 Phone: +86 21 2080 6201

Products we offer:

Hydro-Gear

www.hydro-gear.com

Daikin-Sauer-Danfoss

www.daikin-sauer-danfoss.com

Cartridge valves

•

DCV directional control

•

valves Electric converters

•

Electric machines

•

Electric motors

•

Gear motors

•

Gear pumps

•

Hydraulic integrated

•

circuits (HICs) Hydrostatic motors

•

Hydrostatic pumps

•

Orbital motors

•

PLUS+1® controllers

•

PLUS+1® displays

•

PLUS+1® joysticks and

•

pedals PLUS+1® operator

•

interfaces PLUS+1® sensors

•

PLUS+1® software

•

PLUS+1® software services,

•

support and training Position controls and

•

sensors PVG proportional valves

•

Steering components and

•

systems Telematics

•

Danfoss Power Solutions is a global manufacturer and supplier of high-quality hydraulic and electric components. We specialize in providing state-of-the-art technology and solutions that excel in the harsh operating conditions of the mobile off-highway market as well as the marine sector. Building on our extensive applications expertise, we work closely with you to ensure exceptional performance for a broad range of applications. We help you and other customers around the world speed up system development, reduce costs and bring vehicles and vessels to market faster.

Danfoss Power Solutions – your strongest partner in mobile hydraulics and mobile electrification.

Go to www.danfoss.com for further product information.

We offer you expert worldwide support for ensuring the best possible solutions for outstanding performance. And with an extensive network of Global Service Partners, we also provide you with comprehensive global service for all of our components.

Local address:

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequent changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

Danfoss | July 2021 BC220686485279en-000510

Danfoss PVG 128, PVG 256 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

General Information

Safety in Systems

PVG 128/256 Proportional Valve Group

PVG general description

Features of the PVG 128/256 valve

PVPV Inlet Modules

Closed Center PPRV for PVE Activation and/or Mechanical

PPRV for PVH/PVHC Activation and/or Mechanical

PVB 128 Variant Overview

PVB 128 3-way Compensator

PVB 128 3-way Compensator with LS A/B

PVB 128 3-way Compensator with LS A/B and PVLP

PVB 256 Variant Overview

PVB 256 3-way Compensator

PVB 256 3-way Compensator with LS A/B

PVB 256 3-way Compensator with LSA/B and PVLP

PVB 256 3-way Compensator with LS A/B, PVLP and Turbo

PVLP Shock and PVLA Suction Valves

PVLP Overview

PVLP Technical Data

PVBS Main Spool

PVBS Main Spools variant overview

Flow control spools

PVBS main spools product details

PVS Main spools part numbers

Flow control spools

Flow control spool closed neutral position

Flow control spool throttled open neutral position

Single acting cylinder flow control spool closed neutral position, flow control B port

Flow control spool closed neutral position with A-float

PVM Manual Activation

PVM Technical Data

PVH Hydraulic Actuation

PVH Technical Data

PVHC Electro-Hydraulic Actuator type

PVHC Technical Data

PVMD Cover Manual Actuation Only

PVMD Part Numbers

PVE Electrical Actuator

PVE Series 7 Electrical Actuator

PVE Variant Overview

PVE Variant Overview

PVEO

PVEO

PVEO Schematics and Dimensions

PVEO Technical Data

PVEO 128/256 Reaction Times

PVEO Variants for PVG

PVEH

PVEH Overview

PVEH Schematics and Dimensions

PVEH Technical Data

PVEH Hysteresis and Ripple

PVEH Variants for PVG

Connector Overview

Connector Overview

Fault Monitoring and Reaction

Generic Fault Reaction

PVEH Fault Reaction Overview

Functionality Overview

Standard and Fixed US 0-10 Vdc

PWM Voltage Control

Float A-Port (-FLA)

PVE Power Save

Special Features

Dedicated Float Pin (UF)

Disable Mode

Performance Overview

PVG 128/256 Reaction Times

Hysteresis and Ripple

Oil Consumption

PVSI/PVGI End and Interface Plates

PVSI with or without LX-connection

PVSI with P and T port connections

PVGI Interface plate