Danfoss AVD-S pressure reduction controller, PN 25, DN 15, 1–5 bar adjustable, Kvs 3.2 m³/h, G 3/4 A external thread, for steam

Danfoss AVD-S (003H6667) — self-acting pressure reduction controller, PN 25, DN 15, for steam and circulation-water systems. The AVD-S is a self-acting pressure reduction controller for steam and circulation-water systems. It is normally open and closes on rising downstream pressure, holding the reduced (outlet) pressure constant at the setpoint. It has a control valve, an actuator with one control diaphragm and a spring for the pressure setting; the steam variant uses a hardened stainless-steel valve cone. Reduced-pressure setting range 1–5 bar adjustable; Kvs 3.2 m³/h. Maximum differential-pressure range 10 bar; media temperature 2–200 °C; cavitation factor z ≥ 0.6; seat leakage 0.05 % Kvs (IEC 60534). Valve body Red bronze CuSn5ZnPb (Rg5); valve cone Stainless steel, mat. 1.4122; seat Stainless steel, mat. 1.4571; control diaphragm EPDM. Connection External thread G 3/4 A (ISO 228/1), via tailpieces. Mounting version Flow. Permissible media: Steam (Circulation water). OEM P/N 003H6667. Technical data quoted verbatim from store.danfoss.com (code 003H6667) and the Danfoss AVD / AVD-S (PN 25) pressure reduction controller data sheet. 1.4122; valve seat Stainless steel, mat. 1.4571; control diaphragm EPDM; Pressure rating: PN 25 (max. differential-pressure range 10 bar); Temperature range: 2 to 200 °C (steam/circulation water); HS code: 8481.80. Used in commercial refrigeration, provision-room cooling and reefer plant rooms across HFC, HFO and CO2 (R744) refrigerants. No. No.

Code number

003H6667

Type

AVDS

Product group

Pressure and flow controllers (pressure reduction controller)

Function

Self-acting pressure reduction controller (closes on rising downstream pressure)

Valve size

DN 15

Pressure class

PN 25

Connection

External thread G 3/4 A (ISO 228/1), via tailpieces

Kvs value

3.2 m³/h

Pressure setting range

1 - 5 bar (reduced/outlet, adjustable)

Max. differential pressure range

10 bar

Media temperature

2 - 200 °C

Cavitation factor z

≥ 0.6

Seat leakage rate

0.05 % Kvs (IEC 60534)

Mounting version

Flow

Stem position

Normally open

Permissible media

Steam (Circulation water)

Valve body material

Red bronze CuSn5ZnPb (Rg5)

Valve cone material

Stainless steel, mat. No. 1.4122

Valve seat material

Stainless steel, mat. No. 1.4571

Actuator diaphragm

EPDM

EU RoHS compliance

Yes with exemptions (6(c))

REACH Candidate List substance

Lead (CAS no. 7439-92-1)

China RoHS

Out of scope

Net weight

4.204 kg

Gross weight

4.204 kg

EAN

5702421541883

Material

Valve body Red bronze CuSn5ZnPb (Rg5); valve cone Stainless steel, mat. No. 1.4122; valve seat Stainless steel, mat. No. 1.4571; control diaphragm EPDM

Pressure Rating

PN 25 (max. differential-pressure range 10 bar)

Temperature Range

2 to 200 °C (steam/circulation water)

HS Code

8481.80