Danfoss ECO 80 Service guide
Service and Parts Manual
Directional Valve Group
ECO 80
www.danfoss.com
Service and Parts Manual
Directional Valve Group ECO 80
Revision history Table of revisions
Date Changed Rev
December 2019 First edition 0101
2 | © Danfoss | December 2019 AX327462277301en-000101
Service and Parts Manual
Directional Valve Group ECO 80
Contents
Function
Safety.................................................................................................................................................................................................... 4
Sectional view....................................................................................................................................................................................5
Installation
Identification and oil flow direction for standard assembled ECO 80 LS.....................................................................6
Installation and plug orientation................................................................................................................................................7
Connections pump side and max flow setting......................................................................................................................8
Installation of lever...........................................................................................................................................................................9
Main spool assembly installation.............................................................................................................................................10
Service parts
EVP, pump side module...............................................................................................................................................................11
EVPX, electrical LS unloading valve.........................................................................................................................................13
EVB, basic module..........................................................................................................................................................................14
PVLP shock and PVLA suction valves......................................................................................................................................16
EVO, end plate.................................................................................................................................................................................18
EVBS spools...................................................................................................................................................................................... 19
EVM, mechanical actuation........................................................................................................................................................21
EVC, cover for mechanical actuation...................................................................................................................................... 22
EVOS, open spool through action............................................................................................................................................23
EVOS, open spool mechanical actuation...............................................................................................................................24
EVME, spring center/detent....................................................................................................................................................... 25
EVME through action....................................................................................................................................................................25
EVME, micro switch NO................................................................................................................................................................26
EVH, hydraulic actuation............................................................................................................................................................. 27
EVHC, proportional electrical control..................................................................................................................................... 28
EVHCO, ON/OFF..............................................................................................................................................................................29
EVPN, pneumatic actuator..........................................................................................................................................................30
EVPN, electrical pneumatic actuator.......................................................................................................................................31
EVT, assembly kit............................................................................................................................................................................32
Set of seals........................................................................................................................................................................................33
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Service and Parts Manual
Directional Valve Group ECO 80
Function
Safety
It is the customer's responsibility to decide on the required degree of safety for the system. All marks and
all types of directional control and proportional valves can fail and cause serious damage. It is therefore
important to analyze all aspects of the application. Proportional valves are used in many different
operating conditions and applications; therefore the manufacturer of the application is responsible for
making the final selection of the products and assuring that all performance, safety and warning
requirements of the application are met.
Cost-free repairs, as mentioned in Danfoss General Conditions of Sale, are carried out only at Danfoss or
at service shops authorized by Danfoss.
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Service and Parts Manual
Directional Valve Group ECO 80
Function
ECO 80 LS sectional view
1 Workstation EVB 8 Unloader spool
2 Spool EVBS 9 Unloader spool spring
3 Check valve 10 LS Shuttle
4 Spring center EVME 11 Load sensing
5 Actuator EVOS 12 Shock valve
6 Pump Inlet EVP 13 Spring center (EH) EVM
7 Load sense relief 14 Electric Actuator
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EVB
Low Body
B
A
B
A
EVB
Medium Body
EVHC
EVP
EVS
EVM
EVH
B
A
B
A
A
B
EVB
Low Body
EVB
Medium Body
EVP
EVOS
EVS
XXX
XXX
XXX
XXX
XXX
XXX
XXX
C
C
EVHCO
EVPN Electro pneumatic
EVPN
EVC
ECO
ECO
Service and Parts Manual
Directional Valve Group ECO 80
Installation
Identification and oil flow direction for standard assembled ECO 80 LS
C: Label with ECO 80 number, week and year of installation and series number.
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L
*210[8.27]
*120[4.7]
*210[8.27]
*120[4.7]
98[3.86]
In particularly exposed applications, protection in the form of
screening of the electrical actuator is recommended
4x M8x1.25
EVP: Max. 40 Nm
EVO: Max. 20 Nm
Service and Parts Manual
Directional Valve Group ECO 80
Installation
ECO 80 installation and plug orientation
No. of EVB 1 2 3 4 5 6 7 8 9 10 11 12
L mm 65 105 145 185 225 265 305 345 385 425 465 505
[in] 2.56 4.13 5.71 7.28 8.86 10.43 12.01 13.58 15.16 16.73 18.31 19.88
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Flow P B
B
A
B
A
Max. flow: P A
6±1Nm[53±9lbf-in]
Max. flow: P B
6±1Nm[53±9lbf-in]
Service and Parts Manual
Directional Valve Group ECO 80
Installation
ECO 80 connections pump side and max flow setting
8 | © Danfoss | December 2019 AX327462277301en-000101
22.5°
22.5°
8±1Nm
22.5°
22.5°
52.5 °
22.5 °
82.5 °
112.5 °
67.5 °
97.5 °
127.5 °
157.5 °
187.5 °
Service and Parts Manual
Directional Valve Group ECO 80
Installation
ECO 80 installation of lever
Remember to screw the lever all the way in.
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EVBS, MECHANICAL FLOW CONTROL SPOOLS,THROUGH ACTING
13mm HEX
8-10Nm
EVBS, MECHANICAL FLOW CONTROL SPOOLS,FEMALE EXTENSION
EVBS, MECHANICAL FLOW CONTROL SPOOLS,DETENT 03/02 POSITION
EVBS, ELECTRICAL FLOW CONTROL SPOOLS
EVBS, MECHANICAL FLOW CONTROL SPOOLS,MICRO SWITCH
8-10Nm
8-10Nm
6 mm
8-10 Nm
8-10Nm
8-10Nm
8-10Nm
11 mm
8-10 Nm
Service and Parts Manual
Directional Valve Group ECO 80
Installation
ECO 80 main spool assembly installation
Standard main spool assembly
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7/8"
29-35Nm
7/8"
25-27Nm
3/4"
6-7Nm
OPEN CENTER
SAE PLUG HEX 1/4"(18-20Nm)
BSP PLUG HEX 6mm(29-35Nm)
13) CLOSED CENTER
SAE PLUG HEX 1/4"(18-20Nm)
BSP PLUG HEX 6MM(29-35Nm)
8 mm
22-26 Nm
6mm
29-35Nm
3/4"
18-20 Nm
5 mm
12-14 Nm
3/16"
4-5 Nm
ACCESS TO
RELIEF VALVE
RELIEF VALVE
4MM HEX
360° = 100 BAR
(CLOCKWISE)
1
2
3
4
5
11
10
3
4
7
12
9
6)Closed Center
8)Open Center
Service and Parts Manual
Directional Valve Group ECO 80
Service parts
ECO 80 EVP, pump side module
Type Description Code number P-port T-port* Letter
EVP Open center 11173005 G1/2” G1/2” A
11172981 7/18-14 7/18-14
Closed center 11173006 G1/2” G1/2” B
11173002 7/18-14 7/18-14
Open center with pilot supply 11172996 G1/2” G1/2” C
11173010 7/18-14 7/18-14
Closed center with pilot supply 11172997 G1/2” G1/2” D
11173011 7/18-14 7/18-14
Open center with pilot supply and facilities for EVPX 11173023 G1/2” G1/2” E
11173000 7/18-14 7/18-14
Item Description Code number Letter
1 EVPX housing incl. EVPX See section EVPX - - - - 2 EVPX coil See section EVPX - - - - 3 Plug - 2 2 2 2 2
4 Plug - 2 2 2 2 2
5 Relief valve incl. sealed plastic adjusting
6 Orifice for closed center EVP (Ø0,8 x M6) - - 1 - 1 7 Inlet compensator assembly - 1 1 1 1 1
8 Plug for open center EVP (Pipe M6 x 1) - 1 - 1 - 1
9 Plug - - - 1 1 1
10 Pilot supply - - - 1 1 1
11 Plug for external pilot oil supply - 1 1 - - -
©
screw
- 1 1 1 1 1
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A B C D E
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