Butterfly valve is used for isolating or regulating flow and its function allows for quick shut off. There are many different kinds of butterfly valves, each adapted for different pressures and different usage in the industry.
End Connection: Wafer, Lug, etc
Nominal diameter: 2" - 48"（DN15 - DN1200）
Pressure range: Class 150 - 600（PN16 - PN100）
Working temperature: -10℃ - +120℃
Body material: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Operation Type: Lever, Gear, Electric, Pneumatic, Hydraulic, etc
The turning center of the butterfly plate is on the center line of the valve body and the sealing face section of the butterfly plate. In closing, the ex-circle sealing face of the butterfly plate will extrude the valve seat made of synthetic rubber, generating elastic deformation on the seat to form an elastic force used as a sealing specific pressure so as to guarantee the tightness of the butterfly valve.
Main Parameter Specification
Face to Face Dimension：API609, GB/T 12224
Pressure Temperature Rating：API 609, GB/T 12224
Test and Inspection：API 598, JB/T 9092, GB/T 13927
Design and Manufacture：API 609, MSS SP-67, GB/T 12238
Flange Connection Dimension：ASME B16.1, ASME B15.5, ASME B16.47, BS4504, GB/T 9113, JB/T 79