Product data sheet
Valve
B7621-1706-0122-HA,
October 31, 2025
Seat Valve Electrically servo-assistent
Series 76-1701
Valve B7621/1706/0122-HA AC
3/2-way piston spool valve with differential piston and optional additional spring for piston return. The valve is normally closed from 1 to 2 and open from 2 to 3. The special feature of the B76 series is the mechanical return spring, i.e. the piston spool is returned to the rest position in the event of a pressure failure. On request, outlet 3 can be equipped with an exhaust air throttle.
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Valve B7621/1706/0122-HA AC
Datasheet explicit
Datasheet universal
techn. datasheet - ger/en (PDF) 76
Instructions
Instructions Solenoid valves servo-assisted
| Version | B | |
| Type of valve | 76 | Seat Valve Electrically servo-assistent |
| Connection type, valve seat | 21 | G1/4 7mm |
| Kv-value (Δp = 1 bar H₂O) | 1.2 m³/h | |
| Housing | 17 | aluminium AL anodised |
| Sealing | 06 | EPDM |
| Voltage type | 0 | AC |
| Solenoid power | 12 | 3W-5VA |
| Protection class | 2 | IP65 |
| Valve option | HA | NC + Manual override |
| System pressure | 2 - 10 bar | |
| Valve type | 12V, 24V, 48V, 110V, 120V, 220V, 230V, AC | |
| Temperature Medium | from -20 °C to 90 °C | |
| Temperature Environment | from -20 °C to 40 °C | |
| Mounting position | in any position | |
| Specific use case | Open system, Pressure difference Yes | |
| scope of delivery | 1 valve |
| Valve option | HA | NC + Manual override |
| Description | Valve opens with continuous voltage | manual override | Operation with screwdriver | |
| REACH-RoHS conformity | REACH Yes | RoHS Yes | |
| Net weight | 0.3 kg | |
| Switching time (at 6 bar gas) | On: 14 ms | Off: 20 ms | |
| Customs export | Customs tariff number 84818059; Country of origin Germany; ECCN (US): N; AL: N |