About Butterfly Valves
A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required. The disc is positioned in the center of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve.
Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.
Resilient butterfly valve which has a flexible rubber seat. Working pressure 232 PSI. .
High performance butterfly valve which is usually double eccentric in design. Working pressure up to 725 PSI.
Tricentric butterfly valve which is usually with metal seated design. Working pressure up to 1450 PSI
Butterfly Valves Product List
- Flanged Metal Seated
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Product Details Flanged Metal Seated 
Design and Manufactur MSS SP-67, MSS SP-68, BS 5155 Face to Face Dimension BS 5155 Flange Connection Dimension ASME B16.5, ASME B16.47 BW Connection Dimension ASME B16.25 Pressure-Temperature Ratings ASME B16.34 Test and Inspection API 598 Type of Operation Manual, Gear, Electric, Pneumatic NPS 2"~80" Class 150lb~600lb Main Material WCB, WCC, LCB, LCC, CF8, CF8M, CF3, CF3M, CF8C, CN7M - Flanged Soft Seated
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Product Details Flanged Soft Seated 
Design and Manufactur MSS SP-67, MSS SP-68, BS 5155 Face to Face Dimension BS 5155 Flange Connection Dimension ASME B16.5, ASME B16.47 BW Connection Dimension ASME B16.25 Pressure-Temperature Ratings ASME B16.34 Test and Inspection API 598 Type of Operation Manual, Gear, Electric, Pneumatic NPS 2"~80" Class 150lb~600lb Main Material WCB, WCC, LCB, LCC, CF8, CF8M, CF3, CF3M, CF8C, CN7M - Wafer Butterfly
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Product Details Wafer Butterfly 
Design and Manufactur API 609, BS 5155, ASME B16.34 Face to Face Dimension PS24" to per API 609; NPS > 24" to per BS 5155 Flange Connection Dimension ASME B16.5, ASME B16.47 BW Connection Dimension ASME B16.25 Pressure-Temperature Ratings ASME B16.34 Test and Inspection API 598 Type of Operation Manual, Gear, Electric, Pneumatic NPS 2"~80" Class 150lb~600lb Main Material WCB, WCC, LCB, LCC, CF8, CF8M, CF3, CF3M, CF8C, CN7M - Butterfly Valve for District Heating
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Product Details Butterfly Valve for District Heating 
Design and Manufactur MSS SP-67, MSS SP-68, BS 5155 Face to Face Dimension Manufacturers Specification BW Connection Dimension ASME B16.25 Pressure-Temperature Ratings ASME B16.34 Test and Inspection API 598, API 6D NPS 2"~80" Class 150lb~600lb Main Material WCB, WCC, LCB, LCC, CF8, CF8M, CF3, CF3M, CF8C, CN7M - Cryogenic Butterfly
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Product Details Butterfly Valve for District Heating 
Design and Manufactur MSS SP-67, MSS SP-68, BS 5155, API 609 Face to Face Dimension BS 5155, API 609 BW Connection Dimension ASME B16.5, ASME B16.47 (DIN 2501) Pressure-Temperature Ratings ASME B16.34 Test and Inspection API 598 NPS 2"~24" Class 150lb~600lb Main Material LCB, LCC, LC3, CF8, CF8M - Center-Line Type
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Product Details Center-Line Type 
Design and Manufactur API 609, BS 5155 Face to Face Dimension API 609 BW Connection Dimension ASME B16.5 Test and Inspection API 598 NPS 2"~20" Class 150lb~300lb Main Material WCB, WCA, WCC, LCB, LCC, CF8, CF8M, CF3, CF3M, CF8C, CN7M
Certificate of Warranty
GOC warrant that all the valves are new, unused, and all the materials conform to the ASTM/ASME standard and all the valves have been tested as per API 598 or API 6D. We further warrant that all valves supplied have no defects arising from design, materials. This warranty will remain for twelve (12) months after the date of shipment from the port of loading.