Danfoss genuine spare part, OEM code 003N0278. Hermetically sealed thermostatic element (sensor, bellows and charge) for AVTA and AVTB thermostatically operated water valves. Adsorption charge, regulating range 30–100 °C, sensor 9.5 x 150 mm, capillary tube 2300 mm. Replaces the element on an installed AVTA/AVTB valve without changing the valve body or setting section. Adsorption charge — sensor can be installed in any position; regulating point independent of sensor orientation. EAN 5702423007219.
| Brand | Danfoss |
| Part number | 003N0278 |
| Type | Genuine spare part — Thermostatic element |
| Category | HVAC & Refrigeration — Water Regulating Valves |
| Fits valve(s) | AVTA, AVTB |
| Charge type | Adsorption |
| Regulating range | 30–100 °C |
| Sensor | 9.5 x 150 mm |
| Capillary tube length | 2300 mm |
| Max. pressure on sensor | 25 bar (365 psi) |
| Net weight | 0.245 kg |
| EAN | 5702423007219 |
| HS code | 8481.90 (valve parts) |
| Compatible with | AVTA / AVTB — Adsorption Charge 30–100 °C |
| Product group | Water valves spare parts |
| Cap. tube length fraction [in] | 90 9/16 in |
| Capillary tube length [mm] | 2300 mm |
| China RoHS compliance | Out of scope |
| EU RoHS compliance | Out of scope |
| Max. sensor temperature [°C] | 130 °C |
| Max. sensor temperature [°F] | 266 °F |
| REACH Candidate List substances | Lead (CAS no. 7439-92-1) |
| Sensor size (Ø x L) [in] | 3/8 x 5 29/32 in |
| Sensor size (Ø x L) [mm] | 9.5 x 150 mm |
| Temp. range AVTA/FJVA [°C] [max] | 80 °C |
| Temp. range AVTA/FJVA [°C] [min] | 10 °C |
| Temp. range AVTA/FJVA [°F] [max] | 176 °F |
| Temp. range AVTA/FJVA [°F] [min] | 50 °F |
| Temp. range AVTB/FJV [°C] [max] | 100 °C |
| Temp. range AVTB/FJV [°C] [min] | 30 °C |
| Temp. range AVTB/FJV [°F] [max] | 212 °F |
| Temp. range AVTB/FJV [°F] [min] | 86 °F |
| Type designation | Thermostatic element |
| Used for product | AVTA |
| Temperature range | Regulating range 30–100 °C |
| Standard size | AVTA, AVTB |
| MOQ | 1 |
Confirm the required charge type (Adsorption) and regulating range (30–100 °C) before ordering — the element determines the valve's temperature range. Install per the AVTA/AVTB service instructions.