Product data sheet
Valve
B2705-0401-A278-1K,
May 3, 2025
Seat Valve electrically force-controlled
Series 27-04
Valve B2705/0401/.278-1K AC, DC
Solenoid valve for gases and solid-free liquids. The seal at the valve seat is made by a rubber diaphragm. Force-operated solenoid valves can be used where direct-acting valves are required. The valves operate from 0 bar pressure difference and combine the advantages of servo- and direct-acting valves. An unusually large variety of options make the 27 series with flange connection the specialist 'par excellence'.
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Valve B2705/0401/.278-1K AC, DC
Datasheet explicit
Datasheet universal
datasheet 27-04
Solenoid coil, Certificates
Instruction ATEX valve + coil .278
Type examination certificate ATEX coil A278-KL
Recognition of production quality assurance in accordance with 2014/34/EU (ATEX)
Videos
| Version | B | |
| Type of valve | 27 | Seat Valve electrically force-controlled |
| Connection type, valve seat | 05 | DN40 40mm |
| Kv-value (Δp = 1 bar H₂O) | ||
| Housing | 04 | EN-GJL250 grey cast |
| Sealing | 01 | NBR |
| Voltage type | -- | To be specified later |
| Solenoid power | 27 | 47W |
| Protection class | 8 | Ex protection |
| Valve option | 1K | normally open + Ex Solenoid +70°C |
| Pressure rating | PN16 | |
| System pressure | 0 - 16 bar | |
| Valve type | 12V, 24V, 48V, 110V, 120V, 220V, 230V, AC, DC | |
| Temperature Medium | from -10 °C to 70 °C | |
| Temperature Environment | from -10 °C to 70 °C | |
| Mounting position | Pipeline horizontal, Actuator vertical up | |
| Specific use case | Closed system (includes open system) | |
| scope of delivery | 1 valve, 1 Ex-Solenoid A278-KL | terminal box M20x1,5 | cable clamping area 7-12mm | 100%ED | Cable clamping range 7 -12mm Duty cycle 100% | Valve MatchCode G0xx.xxxxxx.0xx.099.0xx | Gas: Ex II 2G Ex e mb IIC T4 Gb | Staub:Ex II 2D Ex mb tb IIIC T130°C Db | |
| Valve option | 1K | normally open + Ex Solenoid +70°C |
| Description | Valve closes with continous voltage | fixed sensor cable, 2 m, 3-pole | |
| Leakage rate | A - EN 12266 [Test medium air or nitrogen, 20°C room temperature] | |
| REACH-RoHS conformity | REACH Yes | RoHS Yes | |
| Customs export | Customs tariff number 84818071; Country of origin Germany; ECCN (US): N; AL: N |