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Datasheet generated 2026-10-08
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Danfoss Thermostatic Water Valve AVTA 20 — NPT 3/4-14, Universal Charge 50–90 °C

Danfoss · HVAC & Refrigeration · Water Regulating Valves · Denmark · danfoss.com
Part Number
003N7182  ·  HS 8481.80
Danfoss Thermostatic Water Valve AVTA 20 — NPT 3/4-14, Universal Charge 50–90 °C

Danfoss AVTA 20 thermostatically operated water valve, genuine OEM code 003N7182. Self-acting proportional temperature-regulating valve for cooling-water and heating circuits: it opens on rising sensor temperature and needs no external power supply, compressed air or electricity. Universal charge with a regulating range of 50–90 °C. Connection NPT 3/4-14 (ANSI/ASME B1.20.1); kv 3.4 m³/h; brass valve body. Pressure-relieved design — the degree of opening is not affected by differential pressure. Supplied complete with capillary tube gland and hermetically sealed thermostatic element (sensor 18 x 210 mm, capillary 2000 mm). Universal charge — the liquid regulating point remains inside the sensor; sensor may be warmer or colder than the valve. EAN 5702423203468.

Technical Specifications

BrandDanfoss
Part number003N7182
TypeAVTA 20 — thermostatically operated (self-acting) water regulating valve
CategoryHVAC & Refrigeration — Water Regulating Valves
FunctionOpens on rising sensor temperature (proportional flow regulation)
Charge typeUniversal
Regulating range50–90 °C
kv value3.4 m³/h
Valve size / orificeDN20 / 20 mm
ConnectionNPT 3/4-14 (ANSI/ASME B1.20.1)
Body materialBrass
Seat / cone materialEPDM (ethylene-propylene rubber)
Sensor18 x 210 mm
Capillary tube length2000 mm
Max. working pressure (MWP)16 bar (232 psi)
Max. test pressure25 bar (365 psi)
Max. pressure on sensor25 bar (365 psi)
Medium temperature range-25 to 130 °C (-13 to 266 °F)
Mediafresh water or neutral brine (ethylene glycol up to 40%)
Net weight1.398 kg
EAN5702423203468
HS code8481.80 (thermostatically controlled valves)

Properties

MaterialBrass
Pressure rating16 bar (232 psi) max working pressure
Temperature rangeRegulating range 50–90 °C; medium -25 to 130 °C
Standard sizeNPT 3/4-14
Thread standardNPT 3/4-14
MOQ1

Compatibility

Self-acting valve — no power supply required. Select charge type (Universal) and regulating range (50–90 °C) to suit the temperature to be maintained; aim to keep the required sensor temperature near the middle of the range. Install an FV strainer ahead of the valve; route the capillary without kinks.

Attached Documents