Casting Iron Bi Directional Butterfly Valve Concentric API 609 Standard
casting bi-directional Butterfly Valve
The Concentric butterfly valves are widely used in diversity fluid work conditions, its high vacuum soft rubber seal meets various corrosive environment. Due to its lighter weight and lower price than other gate,glove and ball valves, the concertric butterfly is a better choice if possible.
Applicable Standards:
– Butterfly valve design according to API 609, ASME B16.34, EN593
– Face to face ASME B16.10/API 609
– End Flanges ASME B16.5/ASME B16.47
– Inspection and testing API 598, EN12266.
— Rating: ASME CL150
— Temperature Range: 0°C~180°C
— Size Range: 2″~60″
— End Connection:
— Body Material: Cast iron, ductile iron, A216 WCB, A351 CF8, A351 CF8M
— Operation: gearbox, electric, pneumatic, hydraulic
Design Description:
– Low friction between seat and disc of valve
– “”Zero Leakage””Sealing Design
– One Piece Shaft
– Low torque enables the compact actuator and a long cycle life
– Blow-out proof shaft
– Optional stem extension
– Optional locking device fdafadf
– Concentric rubber lined butterfly valve isolates the valve body from the media,using superiorly anti corrosive polymer material.
Qualification certifacation
Concentric butterfly valves are manufactured to the latest edition of EN593 and tested to API Standard 598 Or EN12266.
Soft seat butterfly widely apply to all kinds of indutrial control system, it has many
advantages such as light weight, low cost, high sealed compared to other normal valves.Its
high sealed and anti-corrosion property can extended usage life.It is one of most economic
choice under the low and low and medium pressure.
Nowdays the butterfly valves is widely used in drainage system and flo contrlo system.
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