Danfoss AVP differential pressure controller, PN 25, DN 20, kVS 6.3 m³/h, Δp 0.2 – 1 bar adjustable, flange (003H6346)

Danfoss AVP (003H6346) — self-acting differential pressure controller, PN 25, DN 20, for district heating and central heating systems. The AVP closes on rising differential pressure, holding a stable differential pressure across the controlled circuit so that connected control valves keep their authority. It consists of a control valve and an actuator with one control diaphragm and a handle for differential-pressure setting. Unlike the AVPB, the AVP is a differential-pressure controller only (no integrated flow limiter). kVS 6.3 m³/h; differential-pressure setting range 0.2 – 1 bar, adjustable via handle. Maximum differential pressure 20 bar; medium temperature 2–150 °C; leakage 0.02% of kVS (IEC 534). Valve body ductile iron EN-GJS-400-18-LT (GGG 40.3), valve seat stainless steel 1.4571, valve cone dezincing free brass CuZn36Pb2As, control diaphragm EPDM. Connection flange PN 25. Media: circulation water / glycolic water up to 30% (pH 7–10). OEM P/N 003H6346, EAN 5702421538654. Technical data quoted verbatim from the Danfoss AVP PN 25 (VD.55.W6.02) data sheet and store.danfoss.com (code 003H6346). differential pressure 20 bar); Temperature range: 2 – 150 °C (medium); HS code: 8481.80. Used in commercial refrigeration, provision-room cooling and reefer plant rooms across HFC, HFO and CO2 (R744) refrigerants.

Code number

003H6346

Type

AVP

Product group

Pressure and flow controllers

Description

Self-acting differential pressure controller (district heating), adjustable setting, return mounting

Valve size

DN 20

Pressure class

PN 25

kVS value

6.3 m³/h

Connection

flange, PN 25

Differential pressure setting

0.2 – 1 bar (adjustable)

Max. differential pressure

20 bar

Medium

Circulation water / glycolic water up to 30% (pH 7–10)

Medium temperature

2 – 150 °C

Leakage (IEC 534)

0.02% of kVS

Mounting version

Return

Stem position

Normally open

Valve body

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

Valve seat

Stainless steel, mat. No. 1.4571

Valve cone

Dezincing free brass CuZn36Pb2As

Control diaphragm / sealing

EPDM

EU RoHS compliance

Yes with exemptions (6(c))

REACH Candidate List substance

Lead (CAS no. 7439-92-1)

Net weight

7.046 Kilogram

Gross weight

7.046 Kilogram

Packed volume

11.668 Liter

EAN

5702421538654

HS code

8481.80

Material

Valve body ductile iron EN-GJS-400-18-LT (GGG 40.3); valve seat stainless steel 1.4571; valve cone dezincing free brass CuZn36Pb2As; control diaphragm EPDM

Pressure Rating

PN 25 (max. differential pressure 20 bar)

Temperature Range

2 – 150 °C (medium)

HS Code

8481.80