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What is Butterfly valve ?
Valve Standard : Comply with EN593/BS5155/MSS SP-67.
Product Name : Butterfly valve
Detailed Product Description
Valve Standard : Comply with EN593/BS5155/MSS SP-67.
Working Pressure and Temperature
Size 50 to 600, working pressure PN 16/Class 125.
Size 50 to 300, working pressure PN 20/Class 150.
Size 50 to 300, working pressure PN 25/Class 250.
Temperature from -10℃ to 120℃ for EPDM liner.
Temperature from -10℃ to 82℃ for NBR liner.
Temperature from -10℃ to 150℃ for Viton liner.
Materials Specification
| part name | Material | EN Spec. | ASTM Spec. |
| Body | Cast Iron | EN-JL1040 | A126 Class B |
| Shaft | Stainless Steel | BS970 420S37 | AISI 420 |
| Disc | Stainless Steel | BS970 304S15 | A351 CF8 |
| Disc | Bronze | EN1982 CC491K | B62 C83600 |
| Disc | DI Nichel Plated or FBE Coated | EN-JS1050 | A536 65-45-12 |
| Bushing | PTFE | Commercial | |
| Liner | EPDM/NBR/VITON | Commercial | |
| O-Ring | EPDM/NBR/VITON | Commercial | |
Specialized in castings,forgings and machinery parts.
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