Danfoss AFQMP 2 DN 80 PN 25 pressure-independent flow + differential-pressure control valve — flange, Kvs 80 m³/h, flow 8–100 m³/h, Δp 0.1 bar–1 bar

Danfoss AFQMP 2 DN 80 PN 25 — self-acting pressure-independent flow control valve with an integrated differential-pressure controller, for district heating and district cooling circuits. Combines automatic flow limitation, a control valve and a differential-pressure controller in one body: the flow set point is held independent of pressure variation, while the differential pressure across the control valve is kept constant. Flange connection. Kvs 80 m³/h; adjustable flow range 8–100 m³/h (flow restrictor differential pressure dpb 1 bar); differential-pressure setting range 0.1 bar–1 bar. Media temperature 2 °C to 150 °C. Maximum operating pressure 25 bar. Body Ductile cast iron EN-GJS-400-18-LT (GGG 40.3); valve cone and seat Stainless steel mat. No. 1.4021; EPDM seals and rolling diaphragm. Normally-open stem, stroke 19 mm. Medium: district heating/cooling circulation water (glycolic water up to 30%). OEM designation "AFQMP 2, PN 25, DN 80, 0.1 bar - 1 bar, Flow rate [m³/h]: 8 - 100, Flange, Mounting version: Free". OEM P/N 003G5571. EAN 5714279064797. Technical data quoted verbatim from store.danfoss.com (code 003G5571).

Code number

003G5571

Type

AFQMP 2

Product group

Pressure flow controllers

Gross weight

82 Kilogram

Net weight

57 Kilogram

Volume

637.44 Liter

Actuator diaphragm material

EPDM (Rolling, fibre enforced)

Actuator size [cm²]

160 cm²

Application

District heating and cooling

Cavitation factor

0.53

Cavitation factor 100%

0.46

Cavitation factor 25%

0.59

Cavitation factor 50%

0.59

Cavitation factor 75%

0.53

China RoHS compliance

Out of scope

Connection size

DN 80

Connection types

Flange

Contains batteries

No

Description

Pressure independent control valve

Diameter [mm]

80 mm

Differential pressure range [bar] [Max]

20 bar

Differential pressure setting [bar] [Max]

1 bar

Differential pressure setting [bar] [Min]

0.1 bar

EU RoHS compliance

Out of scope

Flow control

Yes

Flow limitation

Yes

Flow rate [m³/h]

100 m³/h

Flow rate [m³/h] [Max]

100 m³/h

Flow rate [m³/h] [Min]

8 m³/h

Flow restrictor diff.pressure - dpb [bar]

1 bar

Function

Flow controller with int. control valve

Function VSP - P

No

Function VSP - Q

No

Function VSP - T

No

Kvs values [m³/h]

80 m³/h

Leakage rate [% Kvs]

0.01

Leakage through port max. [% Kvs]

0.01

Media pH [Max]

10

Media pH [Min]

7

Media temperature [°C] [Max]

150 °C

Media temperature [°C] [Min]

2 °C

Medium alternative

Glycolic water up to 30%

Mounting version

Free

Number of ports

2

Operating pressure [bar] [Max]

25 bar

Permissible media

District heating/cooling circulation water

PN alternative VSP

40

Pressure class

PN 25

Pressure controller

No

Pressure nominal [bar]

25 bar

Pressure relieve system control valve insert

Chamber

Pressure setting range [bar] [Max]

1 bar

Pressure setting range [bar] [Min]

0.1 bar

REACH Candidate List substances

Lead (CAS no. 7439-92-1)

Sealing CV material

EPDM

Sealing DP material

EPDM

Setting Type

Adjustable

Stem position

Normally open

Stroke [mm]

19 mm

Valve body material

Ductile cast iron EN-GJS-400-18-LT (GGG 40.3)

Valve cone CV material

Stainless steel mat. No. 1.4021

Valve cone DP material

Stainless steel mat. No. 1.4021

Valve seat DP material

Stainless steel, mat. No. 1.4021

Valve seat material

Stainless steel, mat. No. 1.4021

Valve size

DN 80

EAN

5714279064797

HS code

8481.80

Size / Series

AFQMP 2

Material

Valve body Ductile cast iron EN-GJS-400-18-LT (GGG 40.3); cone/seat Stainless steel mat. No. 1.4021; EPDM diaphragm and seals

Pressure Rating

PN 25

Temperature Range

2 °C to 150 °C

HS Code

8481.80