Butterfly VALVES - BFV-wafers-Series

Wafer type body to suit ANSI and DIN connection flanges
Rated to 150/125 class
Designed to API 609, ASME B16.34
Actuator mounting is designed to ISO 5211:2017
Disc edge is machined and polished 360° to provide tight shut-off and low torque
Robust bushing to align shaft and support the shaft
Properly machined shaft in accordance with torque requirements
Secondary and primary seals are standard to prevent leakage and external contamination
Robust seat lining to avoid warping during installation
Spring loaded lever up to 250 NB and gearbox for higher sizes is standard
Electric and pneumatic actuators can be supplied on request
Indexing scale indicating percentage of opening can be provided
Grooved handle arrangement to lock valves at various positions can be provided optionally

Material Specification

COMPONENT	MATERIAL
Body	CI to IS 210, Ductile Iron, ASTM A216 WCB, CF8, CF8M
Pin	SS 316
Disc	CI / DI with anti-corrosive coat, SS 304, SS 316, SS 410
Shaft	SS 304, SS 316
Seat	EPDM (-25 to 105°C), BUNA N (-20 to 80°C), VITON (-20 to 135°C), PTFE (-20 to 180°C)
Seal	BUNA N O-Ring, PTFE O-Ring
Bushing	DELRIN