Danfoss TWA-V electrothermal (thermal-wax) valve actuator, OEM order code 088H3122. The TWA-V converts a switching signal from a room thermostat or controller into valve movement on hydronic floor-heating manifolds and radiator/zone valves — no auxiliary air or hydraulics. Normally closed (NC) — the valve is closed when de-energised and opens when the actuator is powered. Supply voltage 230 V AC (50/60 Hz), power consumption 2 W. RAV / VMT connection; fits Danfoss RAV and VMT valve bodies. 0.95 m connecting cable. Enclosure rating IP41. Net weight 0.144 Kilogram. Genuine Danfoss part; technical data quoted verbatim from store.danfoss.com (code 088H3122). OEM P/N 088H3122, EAN 5702420049526.
| Brand | Danfoss |
| Part number | 088H3122 |
| Type | TWA-V |
| Product group | Thermal actuators |
| Description | TWA-V NC 230V |
| Actuator principle | Electrothermal (thermal wax element) |
| Valve function | NC |
| End-switch | No |
| Supply voltage | 230 V AC |
| Frequency range | 50 Hz – 60 Hz |
| Power consumption | 2 W |
| Connection | RAV / VMT |
| Connection type | RAV |
| Cable length | 0.95 m |
| IP protection class | IP41 |
| REACH candidate-list substances | Lead (CAS no. 7439-92-1) |
| Net weight | 0.144 Kilogram |
| Gross weight | 0.144 Kilogram |
| EAN | 5702420049526 |
| HS code | 8481.90 (parts of taps, cocks, valves and similar appliances) |
| Material | Polyamide housing |
| IP rating | IP41 |
| MOQ | 1 |
Electrothermal actuator for Danfoss RAV and VMT valve bodies. Signalled by a 24 V or 230 V AC room-thermostat/controller output — match the supply voltage (230 V AC) and valve function (normally closed) to the control system. Confirm the valve connection (RAV / VMT) against the manifold or valve body before ordering.