we product Cast iron butterfly valve,if you need you can contact us.

1)Design & Manufacture: BS 5155, API 609, MSS SP-67, MSS SP-68

 

2)Face to Face Dimension: BS 5155, API 609, MSS SP-67, MSS SP-68

 

3)End Connection: ASME B16.5, DIN2543-2545

 

4)Test and Inspection: ISO5208, BS 6755

 

5)Sizes: 2" - 48" or DN50 - DN1200

 

6)Pressure Rating: Class150 or PN10 - PN16

 

7)Material: Cast Iron, WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF8M, CF3M, etc.

 

8)Lined: NBR, EPDM

 

9)Operated by: Lever, Gear, Pneumatic, hydraulic and Electric actuator

 

Wafer-style butterfly valves

 

The wafer style butterfly valve is designed to maintain a seal against bi-directional pressure differential to prevent any backflow in systems designed for unidirectional flow. It accomplishes this with a tightly fitting seal; i.e., gasket, o-ring, precision machined, and a flat valve face on the upstream and downstream sides of the valve.