Danfoss AHPBM-F Data sheet

Data sheet

Diﬀerential pressure controller with ﬂow limitation and with integrated control valve (PN 16) AHPBM-F – ﬂow mounting, ﬁxed setting

Description

AHPBM-F is a self-acting diﬀerential pressure controller with ﬂow limitation primarily for use in direct-connected district heating systems with mixing loop only. The controller closes on rising diﬀerential pressure or when set max. ﬂow is exceeded.

It can be combined with Danfoss electrical actuators AMV(E) and controlled by ECL electronic controllers.

The controller has a control valve with adjustable ﬂow restrictor, connection neck for electrical actuator, and an actuator with one control diaphragm.

Controllers are used together with Danfoss electrical actuators:

- AMV(E) 10

- AMV(E) 13 with spring return function

- AMV(E) 130, AMV(E) 140

- AMV(E) 130H, AMV(E) 140H with manual override knob

AHPBM-F combined with AMV(E) 13 has been approved according to DIN EN 14597.

Main data:

• DN 15-32

• kvs 1.0-6.3 m3/h

• PN 16

• Fixed ∆p setting:

- 0.12 bar for DN 15-20

- 0.14 bar for DN 25-32

• Temperature:

- Circulation water / glycolic water up to 30%: 2 … 120 °C

• Connections:

- Ext. thread (weld-on, thread and ﬂange tailpieces)

Ordering

Example: Diﬀerential pressure controller with ﬂow limitation (ﬁxed setting) and integrated control valve, DN 15, kVS 1.6, PN 16, ﬂow restrictor Δp 0.12 bar, t

- 1× AHPBM-F DN 15 controller Code No.: 003L3582

Option:

- 1× Impulse tube set AH, 1.5 m Code No: 003L8152

- 1× Fitting for imp. tube Code No: 003L5042

- 1× Weld-on tailpieces Code No.: 003H6908

External impulse tube (AH), nipple for impulse tube and electrical actuators AMV(E) must be ordered separately.

DH-SMT/SI

120 °C, ext. thread

max

AHPBM-F Controller

Picture

VD.LR. K1.02 © Danfoss 03/2011

(mm)

20 2.5 G 1 A 003L3583

25 4.0 G 1¼ A

32 6.3 G 1¾ A 003L3585

(m3/h)

1.0

1.25 003L3581

1.6 003L3582

Connection

G ¾ A

Cylin. ext. thread acc. to ISO 228/1

∆p setting range

(bar)

0.12

0.14

Code No.

003L3580

003L3584

Data sheet

0.12(0.14)

Diﬀ. press. controller with ﬂow limitation and with integrated control valve AHPBM-F (PN 16)

Ordering (continuous)

Accessories

Picture Type designation DN Connection Code No.

Weld-on tailpieces

External thread tailpieces

Flange tailpieces

Impulse tube set AH

Impulse tube set AH for pressure reduction

Fitting for impulse tube connection to pipe

10 EPDM o-rings for impulse tube 003L8175

20 003H6909 25 003H6910

32 003H6911 15 20 R ¾ 003H6903 25 R 1 003H6904

Conical ext. thread acc. to

EN 10226-1

R ½ 003H6902

32 R 1¼ 003H6905 15 20 003H6916

Flanges PN 25, acc. to EN 1092-2

25 003H6917

Description:

- 1× copper tube Ø 3 × 1 mm

- 2× ﬁtting for imp. tube connection to actuator and pipe G /

1.5 m 003L3561

2.5 m 003L5043

5 m 003L3562

Description:

- 1× stainless steel tube Ø 0.8 × 0.2 mm

- 2× ﬁtting for imp. tube connection

0.8 m 003L3560

to actuator and pipe G /

G /-R / 003L5042

G /-R ¼ 003L8151

003H6908

003H6915

Technical data

Valve

Nominal diameter DN 15 20 25 32

value

min

* 0.43 0.7 1.0 1.2 2.2 3.4

nom

m3/h

Stroke mm 5.5 5

Control ratio > 1:30 > 1:50 > 1:100

Control characteristic Linear

Cavitation factor z ** ≥ 0.6

Leakage acc. to standard IEC 60534 0.05

Nominal pressure PN 16

Min. diﬀerential pressure

Max. diﬀerential pressure 4

bar

Medium Circulation water / glycolic water up to 30%

Medium pH Min. 7, max. 10

Medium temperature °C 2 … 120

Connections External thread

Materials

Valve body /valve seat / valve cone Dezincing free brass CuZn36Pb2As

Sealing EPDM

* At diﬀerential p ressure across the controller Δp ** kv / kVS ≤ 0.5 at DN 25 and hig her

*** Depe nds on the ﬂow rate and valve k

Depends o n DN

;

Δp +

≥ 0.5 bar

AHPBM-F

⎛

⎞

nom

⎜

⎟

min

⎜

⎟

⎝

⎠

1.0 1.25 1.6 2.5 4.0 6.3

0.035 0.11 0.2 0.25 0.43 0.65

See remark ***

VD.LR. K1.02 © Danfoss 03/2011

DH-SMT/SI

Data sheet

Diﬀ. press. controller with ﬂow limitation and with integrated control valve AHPBM-F (PN 16)

Technical data (continuous)

Application principles

AHPBM-F controller must be installed in the ﬂow pipeline only.

Actuator

Type DN 15 20 25 32

Actuator size cm

Nominal pressure PN 16

Flow restrictor diﬀerential pressure (AHQM) Fixed diﬀerential pressure setting (AHPBM-F)

Materials

Housing* Diaphragm EPDM

Impulse tube

* Actuator ho using is part of valve body

Direct-connected district heating system with mixing

loop only

bar

8.5 13 20 32

0.12 0.14

Dezincing free brass CuZn36Pb2As

Copper tube Ø 3 × 1 mm

Stainless steel tube Ø 0.8 × 0.2 × 800 mm

Installation positions The controllers can be installed in horizontal

or vertical pipes with (connection neck for) electrical actuator oriented upwards.

Electrical actuator Note! Installation positions for electrical actuator AMV(E) have to be observed as well. Please see relevant Data Sheet.

Pressure temperature diagram

working area

CuZn36Pb2As (DZR) PN 16

DH-SMT/SI

Maximum allowed operating pressure as a function of medium temperature (according to EN 1092-3).

VD.LR. K1.02 © Danfoss 03/2011

Data sheet

Diﬀ. press. controller with ﬂow limitation and with integrated control valve AHPBM-F (PN 16)

Flow diagram Sizing and setting diagram

Relation between actual ﬂow and number of revolutions on ﬂow restrictor. Values given are approximate.

DN 32 kVS 6.3

DN 25 kVS 4.0

DN 20 kVS 2.5

DN 15 kVS 1.6

DN 15 kVS 1.25

DN 15 kVS 1.0

Flow can be adjusted by turning ﬂow restrictor screw counter-clockwise as shown in this diagram

1 = 360º

Water ﬂow shown at diﬀerential pressure across the controller from 0.5 bar (50 kPa) to 4 bar (400 kPa).

VD.LR. K1.02 © Danfoss 03/2011

DH-SMT/SI

Data sheet

Diﬀ. press. controller with ﬂow limitation and with integrated control valve AHPBM-F (PN 16)

Sizing

- Directly connected heating system

Example AHPBM-F (ﬂow mounting only)

Motorised control valve (MCV) for mixing circuit in direct-connected heating systems requires diﬀerential pressure of 0.12 bar (12 kPa) and ﬂow less than 600 l/h.

Given data: Q

= 0.6 m3/h (600 l/h)

max

p

= 0.8 bar (80 kPa)

min

*p

= 0.1 bar (10 kPa)

circuit

p

= 0.12 bar (12 kPa) selected

MCV

* Remark: p

corresponds to the required pump

circuit

pressure in the heating circuit and is not to be considered when sizing the AHPBM-F.

The total (available) pressure loss across the controller is: p p

= p

AHPBM-F,A

= 0.8 bar (80 kPa)

AHPBM-F,A

min

Possible pipe pressure losses in tubes, shut-oﬀ ﬁttings, heatmeters, etc. are not included.

Select controller from ﬂow diagram, page 5, with the smallest possible kVS value considering available ﬂow ranges.

kVS = 1.6 m3/h

The min. required diﬀerential pressure across the selected controller is calculated from the formula:





max





p 

p

AHPBM-F,MI N

p

AHPBM-F,A



MINF,-AHPBM









0.6









MINF,-AHPBM



1.6

0.12



 

= 0.26 bar (26 kPa)

> p

AHPBM-F,MI N

MCV

0.8 bar > 0.26 bar

Solution: The example selects AHPBM-F DN 15, kVS value

1.6, ﬂow setting range 0.06-0.79 m3/h.

DH-SMT/SI

Data sheet

Design

1. Valve body

2. Control valve insert

3. Adjustable ﬂow restrictor

4. Control valve stem

5. Diﬀerential pressure actuator

6. Control diaphragm

7. Built-in spring for ﬂow rate control

8. Pressure relieved valve cone

9. Impulse tube

Diﬀ. press. controller with ﬂow limitation and with integrated control valve AHPBM-F (PN 16)

Function Pressure changes from the ﬂow and return

pipeline are being transferred through the impulse tube and control drain to the actuator chambers and act on control diaphragm. Control valve closes on rising diﬀerential pressure and opens on falling diﬀerential pressure to maintain constant diﬀerential pressure. Flow volume is controlled and limited by means of the ﬂow restrictor.

Additionally the electrical actuator will operate from zero to set max. ﬂow according to the load.

Settings

Flow setting

Flow setting is being done by the adjustment of the ﬂow restrictor position. The adjustment can be performed on the basis of ﬂow adjustment diagram (see relevant instructions) and/or by the means of heat meter.

DH-SMT/SI

Data sheet

Dimensions

Diﬀ. press. controller with ﬂow limitation and with integrated control valve AHPBM-F (PN 16)

DN 15 20 25 32

H 24 31 39 49

D (ISO 228/1) G ¾A G 1A G 1¼A G 1¾A

Valve weight kg 0.51 0.67 1.47 2.23

65 82 104 130

57 59 72 84

DN 15 20 25 32

32 (G ¾A) 41 (G 1A) 50 (G 1¼A) 63 (G 1¾A)

d 21 26 33 42

L2 131 144 160 177

½ ¾ 1 1 ¼

130 150 160 -

L3 139 154 159 184

k 65 75 85 -

n 4 4 4 -

Conical ex t. thread acc. to EN 10226-1

Flanges PN 25, acc. to EN 1092-2

14 14 14 -

Fittings

DH-SMT/SI

Data sheet

Dimensions (continuous)

Diﬀ. press. controller with ﬂow limitation and with integrated control valve AHPBM-F (PN 16)

AMV(E) 10 + AHPBM-F

DN 15 20 25 32

AMV(E) 10

AMV(E) 13 147 147 164 183

AMV(E) 10 178 186 204 224

L**

AMV(E) 13 188 196 214 234

AMV(E) 10 195 201 223 245

AMV(E) 13 210 216 238 260

AMV(E) 10 174 184 202 222

H**

AMV(E) 13 180 190 208 228

137 137 153 172

AMV(E) 13 + AHPBM-F

AMV(E) 130(H)/140(H) + AHPBM-F

DN 15 20 25 32

L** 148 156 174 194

H* 168 178 196 216

H** 152 162 180 200

VD.LR. K1.02

118 125 141 160

Danfoss AHPBM-F Data sheet

Specifications and Main Features

Frequently Asked Questions

User Manual