Danfoss AVP, AVP-F Data sheet

Data sheet

Differential pressure controller (PN 16)

AVP - return and flow mounting, adjustable setting
AVP-F - return mounting, fixed setting

Description

Ordering

AVP Controller (return mounting)

DN

k

Picture

(mm)

VS

(m3/h)

1.6

15

2.5 003H6201 003H6207 00 3H6213
Cylin dr.

4.0 003H6202 003H6208 00 3H6214

ext. thread

20 6.3 G 1 A 003H6203 003H6209 003 H6215

25 8.0 G 1¼ A 003H6204 003H6210 0 03H6216

32 10 G 1¾ A 003H6205 0 03 H62 11 0 03H 6217

acc. to

ISO 228/1

Connection

G ¾ A

AVP

∆p setting range

0.05-0.5

(bar)

AVP-F

Code No.

003H6200

AVP(-F) is a self-acting differential pressure
controller primarily for use in district heating
systems. The controller closes on rising
differential pressure.
The controller has a control valve, an actuator
with one control diaphragm and handle for
differential pressure setting (fixed setting version
is without handle).

Main data:

• DN 15-32

• kVS 0.4 -10 m3/h

• PN 16

• Setting range (AVP):

0.05-0.5 bar / 0.2-1.0 bar / 0.8-1.6 bar

• Fixed setting (AVP-F): 0.2 bar / 0.3 bar / 0.5 bar

• Temperature:

- Circulation water / glycolic water up to 30%:
2 … 150 °C

• Connections:

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

∆p setting range

(bar)

0. 2-1.0

Code No.

003H6206

∆p setting range

(bar)

0. 8-1.6

Code No.

00 3H6212

Example 1:
Differential pressure controller;
return mounting; DN 15; kVS 1.6;
PN16; setting range 0.2-1.0 bar;
T

150 °C; ext. thread;

max

- 1× AVP DN 15 controller
Code No: 003H6206

- 1× Impulse tube set AV, R ⁄
Code No: 003H6 852

Option:

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

The controller will be delivered

AVP Controller (flow mounting)

DN

k

Picture

1)

This version of controller ca n be mounted in return or in f low pipe. When orderi ng 2 impulse tube sets AV (instead o f 1) should be

ordered (see ordering example 2).

(mm)

VS

(m3/h)

0.4

1.0 -

15

1.6 003H6238 003H6244

2.5 003H6239 003H6245

4.0 003H6240 003H624 6

20 6.3 G 1 A 003 H6241 003H6247

25 8.0 G 1¼ A 003H6242 003H6248

32 10 G 1¾ A 003H6243 003H6249

Connection

Cylin dr.

ext.
thread
acc. to

ISO 228/1

G ¾ A

∆p setting range

(bar)

0.05-0.5

Code No.

-

∆p setting range

(bar)

0. 2-1.0

Code No.

003H6947

003H694 8

1)

1)

completely assembled, inclusive
impulse tube between valve and
actuator. External impulse tube (AV)
must be ordered separately.

© Danfoss | 2019.02 VD.DB.G7.02 | 1

Data sheet Differential pressure controller (PN 16) AVP, AVP-F

Ordering (continuous)

AVP- F Controller (return mounting)

DN

Picture

k

(mm)

VS

(m3/h)

1.6

15

2.5 003 H6219 003H6225 003H6231

4.0 003H6220 003H6226 003H6232

20 6.3 G 1 A 003H6221 0 03H6227 003H6233

25 8.0 G 1¼ A 003H6222 003H6228 003H6234

32 10 G 1¾ A 003H6223 003H6229 003H6235

Connection

Cylin dr.

ext. thread

acc. to

ISO 228/1

G ¾ A

∆p setting range

(bar)

0.2

Code No.

003 H6218

∆p setting range

(bar)

0.3

Code No.

003H6224

∆p setting range

(bar)

0.5

Code No.

003H6230

Example 2:
Differential pressure controller; flow
mounting; DN 15; kVS 0.4; PN 16;
setting range 0.2-1.0 bar; T
ext. thread;

150 °C;

max

- 1× AVP DN 15 controller
Code No: 003H6 947

- 1× Impulse tube set AV, R ⁄
Code No: 003H6 852

Option:

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

The controller will be delivered
completely assembled, inclusive
impulse tube between valve and
actuator. External impulse tube (AV)
must be ordered separately.

Accessories

Picture Type designation DN Connection Code No.

15

Weld-on tailpieces

External thread tailpieces

Flange tailpieces

Impulse tube set AV

1)

10 compression fittings for imp. tube connection to pipe, Ø 6 × 1 mm R ⁄ 003H6857

1)

10 compression fittings for imp. tube connection to pipe, Ø 6 × 1 mm R ⁄ 003H6858

1)

10 compression fittings for imp. tube connection to pipe, Ø 6 × 1 mm R ½ 003H6859

1)

10 compression fittings for imp. tube connection to actuator, Ø 6 × 1 mm G ⁄ 003 H6931

Shut off valve Ø 6 mm 003H0276

1)

Compression f itting consists of a nippl e, compression ring and nut.

20 003H6909

25 00 3H6910

32 0 03 H69 11

15

20 R ¾ 003H6903

25 R 1 003H6904

32 R 1¼ 003H6905

15

20 003H 6916

25 0 03H6 917

Description:

- 1× copper tube Ø 6 × 1 × 1500 mm

- 1× compression fitting 1) for imp. tube
connection to pipe Ø 6 × 1 mm

Conical ex t. thread acc. to

EN 10226 -1

Flanges PN 25, acc. to EN 1092-2

-

R ½ 003H6902

R ⁄ 003H6852

R ⁄ 003H 6853

R ½ 003H6854

Service kits

Picture Type designation DN

15

Valve insert

20 6.3 003H6866 003H 6874

25 8.0

32 10

k

VS

(m3/h)

0.4 - 003H6869

1.0 - 003H6870

1.6 003H6863 003H6871

2.5 003H6864 003H6872

4.0 003H6865 003H6873

AVP(-F) return AVP(-F) flow

Code No.

003H6867 003H 6875

003H6908

003H6915

Type designation

Actuator with adjustable handle (AVP)

Actuator without adjustable handle (AVP-F)

Δp setting range

(bar)

0.05-0.5 003H6821 003H6823

0. 2-1.0

0. 8-1.6

0.2

0.5

AVP(-F) return AVP(-F) flow

Code No.

003H6822 003H6824

003H6825 -0.3

2 | VD.DB.G7.02 © Danfoss | 2019.02

Data sheet Differential pressure controller (PN 16) AVP, AVP-F

Technical data

Valve

Nominal diameter DN 15 20 25 32

k

value m3/h 0.4 1. 0 1.6 2.5 4.0 6.3 8.0 10

VS

Cavitation factor z ≥ 0.6 ≥ 0.55

Leakage acc. to standard IEC 534 % of k

Nominal pressure PN 25

Max. differential pressure bar 12

Medium Circulation water / glycolic water up to 30%

Medium pH Min. 7, Max. 10

Medium temperature °C 2…15 0

valve Extternal thread

Connections

Materials

Valve body Red bronze CuSn5ZnPb (Rg5)

Valve seat Stainless steel, mat. No. 1.4571

Valve cone Dezincing free brass CuZn36Pb2As

Sealing EPDM

Pressure relieve system Piston

tailpieces

VS

≤ 0.02 ≤ 0.05

Weld-on and external thread

Flange -

Actuator

Typ e AVP AVP- F

Actuator size cm

Nominal pressure PN 16

Diff. pressure setting ranges and
spring colours

Materials

Actuator housing Zinc plated, DIN 1624, No. 1.0338

Diaphragm EPDM

Impulse tube Copper tube Ø 6 x 1 mm

2

0.05-0.5 0.2-1.0 0.8 -1.6 0.2 0.3 0.5

bar

grey black (fixed setting)

39

Application principles

- Return mounting

Direct-connected heating system Indirectly connected heating system

VD.DB.G7.02 | 3© Danfoss | 2019.02

Data sheet Differential pressure controller (PN 16) AVP, AVP-F

Application principles

- Flow mounting

Direct-connected heating system Indirectly connected heating system

Installation positions Up to medium temperature of 100 °C the

controllers can be installed in any position.

Pressure temperature
diagram

For higher temperatures the controllers have
to be installed in horizontal pipes only, with a
pressure actuator oriented downwards.

CuSn5ZnPb (Rg5) PN 16

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

4 | VD.DB.G7.02 © Danfoss | 2019.02

Data sheet Differential pressure controller (PN 16) AVP, AVP-F

Sizing

- Directly connected heating
system

Example 1

Motorised control valve (MCV) for mixing circuit
in direct-connected heating system requires
differential pressure of 0.2 bar (20 kPa).

Given data:
Q

= 1.3 m3/h (1300 l/h)

max

∆p

= 0.7 bar (70 kPa)

min

*∆p

= 0.1 bar (10 kPa)

circuit

∆p

= 0.2 bar (20 kPa) selected

MCV

*Remark
p

corresponds to the required pump pressure in the

circuit

heating circuit and is not to be considered when sizing the AVP

The dierential pressure set value is:
∆p

= ∆p

∆p

set value

set value

MCV

= 0.2 bar (20 kPa)

The total pressure loss across the controller is:
∆p

= ∆p

AVP

∆p

= 0.5 bar (50 kPa)

AVP

min

− ∆p

= 0.7 − 0.2

MCV

Possible pipe pressure losses in tubes, shut-o
ttings, heatmeters, etc. are not included.

kv value is calculated according to formula:

Q

k

max

v

Δp

1.3



AVP

0.5

kv = 1.8 m3/h

or read from the sizing diagram, page 7, by
taking a line from Q-scale (1.3 m3/h) through ∆pv­scale (0.5 bar) to intersect kv-scale at 1.8 m3/h.

Solution:

The example selects AVP DN 15, kVS value 2.5,
with dierential pressure setting range

0.05-0.5 bar.

The P-band (Xp) can also be read from the sizing
diagram. Take a horizontal line from the kv-scale
(1.8 m3/h) to the right to intersect the Xp-scale
(0.04 bar). At a set value of 0.2 bar and a Xp of

0.04 bar the AVP controller controls between

0.2 bar with open motorised control valve and

0.2 + 0.04 = 0.24 bar at almost closed motorised
control valve (i.e. total pressure loss across the
motorised control valve).

VD.DB.G7.02 | 5© Danfoss | 2019.02

Data sheet Differential pressure controller (PN 16) AVP, AVP-F

Sizing (continuous)

- Indirectly connected heating
system

Example 2

Motorised control valve (MCV) for indirectly
connected heating system requires dierential
pressure of 0.3 (30 kPa) bar.

Given data:
Q

= 0.8 m3/h (800 l/h)

max

∆p

= 0.8 bar (80 kPa)

min

∆p
∆p

= 0.05 bar (5 kPa)

exchanger

= 0.3 bar (30 kPa) selected

MCV

The dierential pressure set value is:
∆p
∆p

= ∆p

set value

set value

exchanger

= 0.35 bar (35 kPa)

+ ∆p

= 0.05 + 0.3

MCV

The total pressure loss across the controller is:
∆p

= ∆p

AVP

= 0.8 − 0.05 − 0.3
∆p

= 0.45 bar (45 kPa)

AVP

min

− ∆p

exchanger

− ∆p

MCV

Possible pipe pressure losses in tubes, shut-o
ttings, heatmeters, etc. are not included.

kv value is calculated according to formula:

Q

k

max

v

Δp

0.8



AVP

0.45

kv = 1.2 m3/h

or read from the sizing diagram, page 7, by
taking a line from Q-scale (0.8 m3/h) through ∆pv­scale (0.45 bar) to intersect kv-scale at 1.2 m3/h.

Solution:
The example selects AVP DN 15, kVS value 1.6,
with dierential pressure setting range

0.05-0.5 bar.

The P-band (XP) can also be read from the sizing
diagram. Take a horizontal line from the kv-scale
(1.2 m3/h) to the right to intersect the XP-scale
(0.04 bar). At a set value of 0.35 bar and a XP of

0.04 bar the AVP controller controls between

0.35 bar with open motorised control valve and

0.35 + 0.04 = 0.39 bar at almost closed motorised
control valve (i.e. total pressure loss across the
motorised control valve).

6 | VD.DB.G7.02 © Danfoss | 2019.02

Data sheet Differential pressure controller (PN 16) AVP, AVP-F

Sizing (continuous)

Select suitable controller size. Xp should not exceed 50% of the controller differential pressure setting.

VD.DB.G7.02 | 7© Danfoss | 2019.02

Data sheet Differential pressure controller (PN 16) AVP, AVP-F

Design

1. Valve body

2. Valve insert

3. Pressure relieved valve cone

4. Valve stem

5. Control drain

6. Actuator

7. Control diaphragm for diff.

pressure control

8. Setting spring for diff.

pressure control

9. Handle for diff. pressure

setting, prepared for sealing

10. Union nut

11. Compression fitting for

impulse tube

12 . Excess pressure safety valve

AVP

AVP- F

Function Pressure changes from flow and return pipes are

being transferred through the impulse tubes
and/or control drain in the actuator stem to
the actuator chambers and act on control
diaphragm for diff. pressure control. The diff.
pressure is controlled by means of setting spring
for diff. pressure control. Control valve closes on
rising differential pressure and opens on falling
differential pressure to maintain constant
differential pressure.

Settings Differential pressure setting

Differential pressure setting (valid for AVP
controller only) is being done by the adjustment
of the setting spring for diff. pressure control.
The adjustment can be done by means of
handle for diff. pressure setting and/or pressure
indicators.

Adjustment diagram

Relation between scale figures and differential pressure. Values given are approximate.

Controller is equipped with excess pressure
safety valve, which protects control diaphragm
for diff. pressure control from too high
differential pressure.

8 | VD.DB.G7.02 © Danfoss | 2019.02

Data sheet Differential pressure controller (PN 16) AVP, AVP-F

Dimensions

AVP (ow, return)

DN

d

AVP- F (return)

L H H2

mm

15 65 232 34 1.7

20 70 232 34 1. 8

25 75 232 38 1.9

32 100 232 38 2.2

L

3

SW

1)

DN R

15 ⁄ 32 (G ⁄A) 21 130 120 139 65 14 4

20 ⁄ 41 (G 1A) 26 150 131 154 75 14 4

25 1 50 (G 1⁄A) 33 160 145 159 85 14 4

32 1⁄ 63 (G 1 ⁄A) 42 - 177 184 - - -

1)

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

2)

Flanges PN 25, acc. to EN 1092-2

Weight

(kg)

L

2

R

SW

SW d L1 2)L2L

mm

DN

15 65 97 34 1.3

20 70 97 34 1. 4

25 75 97 38 1.5

32 100 97 38 1. 8

L

1

3

L H H2

mm

n

SW

k d

2

n

Weight

(kg)

d

2

45°

k

R ⁄ / R ⁄ / R ⁄

Compression ttings

31 mm (R ⁄)
37 mm (R ⁄)
43 mm (R ⁄)

VD.DB.G7.02 | 9© Danfoss | 2019.02

Data sheet Differential pressure controller (PN 16) AVP, AVP-F

10 | VD.DB.G7.02 © Danfoss | 2019.02

Data sheet Differential pressure controller (PN 16) AVP, AVP-F

VD.DB.G7.02 | 11© Danfoss | 2019.02

Danfos
produc
Al

Danfoss A/S

Heating Segment • heating

Data sheet Differential pressure controller (PN 16) AVP, AVP-F

s can accept no responsibility for possible errors in catalogues, brochures and o ther printed material. Danfoss reserves the right to alter its products w ithout notice. This also applies to
ts already on order provided that such alterations can be m ade without subsequential changes being necessary in specications already agreed.

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© Danfoss | DHS-SRMT/SI | 2019.0212 | VD.DB.G7.02