Danfoss AHQM Combined Automatic Flow Limiter & Differential-Pressure Controller (PICV) DN 50, PN 16 (003L3602)

Danfoss AHQM (balancing valves), OEM order code 003L3602. Self-acting combined automatic flow limiter and differential-pressure controller (pressure-independent control valve) for hydronic balancing of heating and cooling circuits. Manufacturer description: AHQM PN16 50/20/0,2 ext.thr flow/ret. connection/size DN 50, Kvs 20 m³/h, PN 16; max. differential pressure 4 bar, media/setting temperature 2 °C to 120 °C, body material Grey cast iron EN-GJL-250 (GG-25). EAN 5710104028743. HS 8481.80. Specifications quoted verbatim from store.danfoss.com (code 003L3602).

Brand

Danfoss

Part number

003L3602

Code number

003L3602

Type

AHQM

Product group

Pressure flow controllers

Description

AHQM PN16 50/20/0,2 ext.thr flow/ret

Gross weight

7.167 Kilogram

Net weight

7.167 Kilogram

Actuator diaphragm material

EPDM

Application

District Heating

Cavitation factor

0.6

Connection size

G 2 1/2 A

Connection types

External Thread

Diameter [mm]

50 mm

Differential pressure range [bar] [Max]

4 bar

Flow control

Yes

Flow limitation

Yes

Flow rate [m³/h]

12.5 m³/h

Flow rate [m³/h] [Max]

12.5 m³/h

Flow rate [m³/h] [Min]

2.5 m³/h

Flow restrictor diff.pressure - dpb [bar]

0.2 bar

Function

Flow controller with int. control valve

Function VSP - P

No

Function VSP - Q

No

Function VSP - T

No

Kvs values [m³/h]

20 m³/h

Leakage rate [% Kvs]

0.05

Media pH [Max]

10

Media pH [Min]

7

Media temperature [°C] [Max]

120 °C

Media temperature [°C] [Min]

2 °C

Medium alternative

Glycolic water up to 30%

Mounting version

Free

Number of ports

2

Permissible media

District heating/cooling circulation water

PN alternative VSP

10

Pressure class

PN 16

Pressure controller

No

Pressure nominal [bar]

16 bar

Sealing CV material

Metal

Sealing DP material

EPDM

Setting Type

None

Stem position

Normally open

Stroke [mm]

10 mm

Valve body material

Grey cast iron EN-GJL-250 (GG-25)

Valve cone CV material

DZR CW602N (CuZn36Pb2As)

Valve cone DP material

Stainless steel, mat. No. 1.4404

Valve seat material

Stainless steel, mat. No. 1.4404

Valve size

DN 50

EAN

5710104028743

HS code

8481.80 (taps, cocks, valves for pipes)

Size / Series

DN 50

Material

Grey cast iron EN-GJL-250 (GG-25)

Pressure Rating

PN 16; max. differential pressure 4 bar

Temperature Range

2 °C to 120 °C

HS Code

8481.80