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Datasheet generated 2026-10-07
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Danfoss AVTA 25 Thermostatic Water Valve NPT 1 in

Danfoss · HVAC & Refrigeration · Water Regulating Valves · Denmark · danfoss.com
Part Number
003N8100  ·  HS 8481.80
Danfoss AVTA 25 Thermostatic Water Valve NPT 1 in

Danfoss AVTA 25 thermostatically-operated water valve, OEM P/N 003N8100. Regulates cooling-water flow from a temperature sensor; the valve opens on rising sensor temperature. Valve body supplied without sensor element (order the thermostatic element separately). Water connection 1 NPT (ANSI/ASME B1.20.1). Kv 5.5 m³/h. Body Brass. Max working pressure 16 bar (232 psig). Media Neutral media. OEM designation "". OEM P/N 003N8100. EAN 5702423021406. Technical data quoted verbatim from store.danfoss.com (code 003N8100).

Technical Specifications

BrandDanfoss
Part number003N8100
ModelAVTA 25
CategoryHVAC & Refrigeration — Water Regulating Valves
FunctionThermostatically-operated water valve
Nominal sizeAVTA 25 (DN 25)
Opening configurationOpens on rising sensor temp.
Water connection size1 NPT
Connection standardANSI/ASME B1.20.1
Kv value5.5 m³/h (Cv 6.4 gal/min)
Orifice size25 mm (1 in)
Max differential pressure10 bar
Max pressure on sensor25 bar
Max working pressure16 bar (232 psig)
Body materialBrass
Notevalve body supplied without sensor element (order thermostatic element separately)
MediaNeutral media
Medium temperature range-25 °C to 130 °C (-13 °F to 266 °F)
ApprovalsPED, EAC, China RoHS, RoHS
REACH Candidate List substanceLead (CAS no. 7439-92-1)
PackingMulti pack (10 pc)
Volume4.082 L
Net weight1.02 kg
Gross weight1.42 kg
OEM descriptionEAN: 5702423021406
HS code8481.80
EAN5702423021406

Properties

MaterialBrass
Pressure rating16 bar (232 psig) max working pressure
Temperature range-25 °C to 130 °C
Standard sizeAVTA 25
Thread standardANSI/ASME B1.20.1
MOQ1

Compatibility

Fit in the cooling-water line with the flow arrow in the direction of flow; the sensor senses the medium temperature and the valve opens on rising temperature. Order the matching thermostatic sensor element separately. Match connection and temperature range to the application. Confirm code before ordering.

Standards

Approvals

Attached Documents