The Keystone F250D (for imperial tubing) and the Keystone F251D (for metric tubing) are double block and bleed style, stainless steel Butterfly Valves. The Keystone F250D and F251D are suited for use in the brewery, dairy, winery, food processing, pharmaceutical and chemical industries.
Features
Keystone proven Valve and Actuator technology
Failsafe pneumatic interlocks
Fully machined 316L or 304L stainless steel body
Linkage driven, with only one Actuator required
Linkage safety guard fitted as standard
Overlapping discs to minimize leakage cavity volume on larger sizes
Travel limited Actuator to stop disc contact on larger sizes
Full range of seats materials available
Optional end connections
Full range of optional accessories.
