• Fouress Engineering (India) Limited

Butterfly Valves

Fouress Engineering offers Butterfly Valves, BV 895. These eccentric disc butterfly-type control valve body assemblies are flangeless construction that use a bi-directional nitrile/viton seals or of metal-seated construction. These valves are suitable for low-pressure liquids, steam or gas service and installations where large volumes approaching full line capacity must be handled with low-pressure drop. The action of the eccentrically mounted disc minimises the moving contact of the seal with the seat ring to reduce seal wear and seating torque requirements. Full closures are at 90°C to the body axis in both cases. These valves are offered with pneumatic spring return diaphragm actuator in compact yokeless design. Changes of action from air-to-close to air-to-open or the reverse are effected by adjustment of the linkage between actuator stem and valve disc shaft, using the same actuator. The ranges also available are A36A double acting positioning or On/Off actuator. For control duty, butterfly valves can be offered with positioner, air set, position transmitter, solenoid valve, limit switches, etc., with all accessories mounted on the valve body. The company also offers products on request are: pneumatic rotary and diaphragm actuators for control duty; pump discharge valves; penstock protection and turbine inlet valves; fourway valves; non-return valves.