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Datasheet generated 2026-10-08
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Danfoss AVPL Self-Acting Differential-Pressure Controller DN 15, PN 16 (003L3640)

Danfoss · HVAC & Refrigeration · Balancing Valves · Denmark · danfoss.com
Part Number
003L3640  ·  HS 8481.80
Danfoss AVPL Self-Acting Differential-Pressure Controller DN 15, PN 16 (003L3640)

Danfoss AVPL (balancing valves), OEM order code 003L3640. Self-acting differential-pressure controller mounted in the return that holds a constant differential pressure across a heating or cooling circuit. Manufacturer description: AVPL PN16 15/2,5 0,05-0,25 ext. thr ret. connection/size DN 15, Kvs 2.5 m³/h, PN 16; max. differential pressure 4.5 bar, media/setting temperature 2 °C to 120 °C, body material DZR brass CuZn36Pb2AS (CW 602N). EAN 5714279007152. HS 8481.80. Specifications quoted verbatim from store.danfoss.com (code 003L3640).

Technical Specifications

BrandDanfoss
Part number003L3640
Code number003L3640
TypeAVPL
Product groupPressure flow controllers
DescriptionAVPL PN16 15/2,5 0,05-0,25 ext. thr ret
Gross weight0.673 Kilogram
Net weight0.621 Kilogram
Actuator diaphragm materialEPDM
ApplicationHeating and cooling
Cavitation factor0.5
Connection sizeG 3/4 A
Connection typesExternal Thread
Diameter [mm]15 mm
Differential pressure range [bar] [Max]4.5 bar
Differential pressure setting [bar] [Max]0.25 bar
Differential pressure setting [bar] [Min]0.05 bar
Flow controlNo
Flow limitationNo
FunctionDiff. press. controller
Function VSP - PYes
Function VSP - QNo
Function VSP - TNo
Kvs values [m³/h]2.5 m³/h
Media pH [Max]10
Media pH [Min]7
Media temperature [°C] [Max]120 °C
Media temperature [°C] [Min]2 °C
Medium alternativeGlycolic water up to 30%
Mounting versionReturn
Permissible mediaDistrict heating/cooling circulation water
PN alternative VSP10
Pressure classPN 16
Pressure controllerDifferential pressure controller
Pressure nominal [bar]16 bar
Setting TypeAdjustable
Stem positionNormally open
Valve body materialDZR brass CuZn36Pb2AS (CW 602N)
Valve cone DP materialStainless steel
Valve seat materialStainless steel
Valve sizeDN 15
EAN5714279007152
HS code8481.80 (taps, cocks, valves for pipes)

Properties

MaterialDZR brass CuZn36Pb2AS (CW 602N)
Pressure ratingPN 16; max. differential pressure 4.5 bar
Temperature range2 °C to 120 °C
Standard sizeDN 15
MOQ1

Compatibility

Genuine Danfoss part, order code 003L3640 (Pressure flow controllers). Confirm the code, size (DN 15) and matching valve/actuator family against your Danfoss datasheet before ordering.

Attached Documents