Being part of the proven KÜHME high-performance valve series for industrial applications, the valve type KEV is used in application area for which a quick and safe relief of gaseous media and fuels is required in between two safety shut-off devices. The electro-pneumatically controlled quick-opening valve sets standards in regards to service life and reliability even in the most demanding applications.

Application areas

  • Automatic 2/2-way valve for interim relief with pneumatic actuator for gas burners and gas appliances with ediate relief with safety function, type-tested in acc. with EC-Type-Examination-Certificate in acc. with Gas Appliances Directive
  • Automatic 2/2-way-fast-opening-valve for interim relief with safety function, automatically opening when the power supply fail as a safety devices for gaseous fuels with EC-Type-Examination (Module B) in acc. with PED
  • Automatic intermediate vent valve for relief of the gas volume in between safety shut-off devices on gas burners for steam boilers acc. to DIN EN 12 952-8 / DIN EN 12 953-7
  • Pipe systems for gaseous media and fuels in all industrial sectors
Nominal size: DN 20
Operating pressure: max. 16.0 bar g
Operating temperature: max. + 180°C


  • Opening time < 1 second
  • High safety level through zero leakage
  • Heavy duty design for high amount of operating cycles
  • High-performance valve with a long service life

The quick-opening valve is piloted by means of the pneumatic actuator either with a separate solenoid control valve, or in parallel by the solenoid valve of the first automatic quick-closing valve within a safety shut-off valve combination (double block and bleed device).Automatic quick-opening is carried out by the installed spring force in less than 1 second and allows relief of the gas volume  into the atmosphere. The valve cone with soft sealing element guarantees absolute tightness (leakage rate A in acc. with EN 12266-1).

Technical features

Valve body: Valve body in angle design made from machining steel
Seat sealing system: Soft sealing: NBR, FKM, valve seat cladded with stainless steel
Seat sealing: Advanced and proven sealing ring system
Actuator type: Integral KÜHME pneumatic piston actuator for linear movement with fail open function by means of spring force, controlled via electro-pneumatic 3/2-way solenoid
Process connection: Alternatively with weld-on ends or flange connection, available in DIN or ANSI design
Special features: