QUICK-CLOSING VALVE
TYPE KVF

Being part of the proven KÜHME high-performance valve series for industrial applications, the valve type KVF is used in any application area for which the quick and safe shut-off of gaseous media as well as fuels is required. The electro-pneumatically controlled quick-closing valve sets standards in regards to service life and reliability even in the most demanding applications.

Application areas
  • Automatic shut-off valve with pneumatic actuator with fast-close operation in case of breakdown of the auxiliary energy for gas burners and gas appliances with EC-Type-Examination-Certificate in acc. with   Gas Appliances Directive
  • Quick acting safety shut-off valve for gaseous fuels, gas-burners and gas appliances with EC-Type-Examination (Module B) in acc. with PED
  • Automatic shut-off valve in pipe systems in accordance with DIN EN 746-2 Industrial thermo-processing equipment
  • As a control element for the fuel mass flow rate to control the combustion performance according to
    DIN EN 12 952-8 para. 4.4.1
  • Combustion systems for liquid and gaseous fuels in accordance with DIN EN 12 953-7
  • Pipe systems for gaseous media and fuels in all industrial sectors
Nominal size: DN 15 to DN 50
Operating pressure: max. 40.0 bar g
Operating temperature: max. + 200°C

Advantages
  • Closing time< 1 sec
  • High safety level through zero leakage
  • Heavy duty design for high amount of operating cycles
  • High-performance valve with a long service life
Function
The quick-closing valve is actuated by a pneumatic actuator with a solenoid control valve. Automatic quick-closing is carried out by the installed spring force in less than 1 second. The valve cone with soft sealing element guarantees absolute tightness (leakage rate A in acc. with EN 12266-1).

Technical features
Valve body: Globe valve body made of forged  or cast steel
Seat sealing system: Soft sealing: PTFE, valve seat cladded with stainless steel
Stem sealing: Stainless steel bellows with secondary sealing and test connection G 1/8
Actuator type: Integral KÜHME pneumatic piston actuator for linear movement with fail close function by means of spring force, controlled via electro-pneumatic 3/2-way solenoid valve
Process connection: Alternatively with welding ends or flange connection, both available in EN or ANSI design
Special features:
  • Type-tested valve in acc. with PED and Gas Appliances Directive,
    test base DIN EN 13611 / DIN EN 161 / DIN EN 16678
  • Closing time less than 1 second
  • Sealing system certified in acc. with Clean Air Guidelines (TA-Luft) / ISO 15 848-1
  • Valve optionally available in ATEX design
  • Valve optionally available in SIL design, certified SIL 2
  • Optionally with adjustable (5 to 20 sec.) hydraulic opening delay and throttling plug for smooth start-up operation (see type KVF/R)
  • Optionally available as quick-opening valve with set function fail open  (see type KVF/O)
  • Optionally available as entirely pre-mounted quick closing valve combination with intermediate vent valve (double block and bleed valve assembly)  
  • Available in special design with an electro-hydraulic actuator system
  • Available also as customised valve solution for extreme operating conditions and special applications - We are looking forward to answer your questions!