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Datasheet generated 2026-10-08
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Danfoss AVD pressure-reduction controller, PN 25, DN 15, kVS 2.5 m³/h, setting 3 – 12 bar (003H6981)

Danfoss · HVAC & Refrigeration · Balancing Valves · Denmark · danfoss.com
Part Number
003H6981  ·  HS 8481.80
Danfoss AVD pressure-reduction controller, PN 25, DN 15, kVS 2.5 m³/h, setting 3 – 12 bar (003H6981)

Danfoss AVD (003H6981) — self-acting pressure-reduction controller, PN 25, DN 15, for district heating and central-heating circuits. The AVD is a self-acting pressure-reduction controller that requires no auxiliary energy: it holds a constant reduced downstream pressure, closing on rising outlet pressure, using a control valve and a spring-loaded actuator diaphragm. kVS 2.5 m³/h; adjustable pressure setting range 3 – 12 bar. OEM P/N 003H6981, EAN 5710104096773. Technical data quoted verbatim from store.danfoss.com (code 003H6981).

Technical Specifications

Code number003H6981
TypeAVD
FunctionPress. reduction controller
Product groupPressure and flow controllers
DescriptionSelf-acting pressure-reduction controller (district heating), adjustable setting
Valve sizeDN 15
Pressure classPN 25
kVS value2.5 m³/h
Pressure setting range3 – 12 bar (adjustable)
EU RoHS complianceYes with exemptions (6(c))
REACH Candidate List substanceLead (CAS no. 7439-92-1)
Net weight5.416 Kilogram
Gross weight5.457 Kilogram
Packed volume10.944 Liter
EAN5710104096773
HS code8481.80
China RoHS complianceOut of scope
Diameter [mm]15 mm
EU RoHS exemption clause6(c)
Kvs values [m³/h]2.5 m³/h
Pressure setting range [bar] [Max]12 bar
Pressure setting range [bar] [Min]3 bar
REACH Candidate List substancesLead (CAS no. 7439-92-1)

Properties

Pressure ratingPN 25
MOQ1

Compatibility

Danfoss AVD for DN 15 district-heating circuits, PN 25. Size by the design flow (kVS 2.5 m³/h) and set the reduced-pressure setpoint within 3 – 12 bar. Confirm the pressure class (PN 25) against the pipework. Genuine Danfoss part — specify order code 003H6981.

Attached Documents