GAS TURBINE QUICK-CLOSING VALVE
TYPE KVH-GT

The fastest ever - the high-end solution, developed for emergency shutdown application (ESD) on next generation high efficiency gas turbines. Based on the contribution of the entire KÜHME know-how closing times of less than 150 milliseconds are achieved and guaranteed by means of performance optimised technology for valve type’s of complete size spectrum. The use of special high temperature materials allows their application for cutting-edge gas turbines with enhanced performance parameters.

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Data sheet
Application areas
  • Quick acting safety shut-off valve for gaseous fuels, gas-burners and gas appliances in acc. with
    PED (Module H)
  • 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 50 to DN 350
Operating pressure: max. 70.0 bar g
Operating temperature: max. + 260°C

Advantages
  • Closing time ≤ 150 milliseconds
  • High safety level within ESD operation through zero leakage
  • For performance-oriented use at high pressures and extreme temperatures
  • 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 150 milliseconds. 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 seal: Special high temperature compound, valve seat cladded with stainless steel
Stem sealing: Automatic  sealing set from special compound 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 and specialized control system
Process connection: Alternatively with welding ends or flange connection, both available in EN or ANSI design
Special features:
  • Quick acting safety shut-off valve in acc. with PED (Module H),  development base DIN EN 13611 / DIN EN 16678
  • Closing time less than 150 milliseconds
  • 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
  • Available also as customised valve solution for extreme operating conditions and special applications - We are looking forward to answer your questions!