Butterfly valve PKIII/D

pneumatically-operatedshut-offfor gas

SAFETY QUICK-CLOSING BUTTERFLY FLAP VALVE Being part of the proven KÜHME high-performance valve series for industrial applications, the PKIII type is used in any application where safe and quick shut-off of gaseous media is required. The electro-pneumatically controlled quick-closing butterfly flap valve sets standards for tightness, service life and reliability even in the most demanding applications. The butterfly flap valve is mainly used as a tight shut-off device for gaseous media in systems with low pressures. Applications: Thermal Power Plants, Steelworks, Biogas & Landfill Gas, Industrial Combustion, Air Separation Plants – PSA YOUR BENEFITS Reliable Closing time < 3 seconds Safety guaranteed by the proven sealing system with soft seal (leakage rate A in acc. with EN 12266-1) Closing of the valve is dampened to reduce pressure surges in the pipeline Double seat – one valve instead of two separate valves – compact and cost-efficient solution Convenient insitu automatic testing of the sealing system during plant operation – without having to dismantle the valve Heavy duty design for high amount of operating cycles High-performance valve with a long service life OPERATION DETAILS The quick-closing flap is operated by a pneumatic actuator with a solenoid control valve. Automatic quick-closing relieves the pressure volume in the pneumatic actuator via the quick-exhaust valve. The flap closes by means of the stored energy of the closing springs. As the result of the lever kinematics the flap blade moves parallel – and thus nearly without any friction – into the sealing seat.