Cast iron clamped butterfly valve adopts three eccentric sealing structure, the valve sequence and butterfly plate almost no wear, with the more closed the tighter the sealing function. The sealing ring is made of stainless steel, which has the double advantages of metal hard seal and elastic seal, and has excellent sealing performance no matter in low temperature and high temperature.
Excellent sealing performance, corrosion resistance, long service life and other characteristics. The sealing surface of the disk plate is made of surfacing welded diamond base hard alloy, the sealing surface is wear-resistant and has a long service life. Large size butterfly plate adopts rack structure, high strength, large overflow area, small flow resistance. Butterfly valve with two-way sealing cast iron, installation is not subject to the restrictions of the media flow direction, but also not subject to the influence of the location of the space, can be installed in any direction. The driving device can be installed in multiple positions (rotating 90" or 180"), which is convenient for users to use.
Cast Iron Butterfly Valve Wafer Type Specification
| Design Standard | API 602, ASME B 16.34 |
| Pressure/Temperature Chart | ASME B16.34 |
| Face to face Dimension | VIHUNG Standard |
| Testing Standard | API 598 |
| Flange Details | ASME B16.5 UP TO 4",DIN / BS IS JIS |
| Butt-Weld End Details | ASME B16.25 |
| Socket Weld End Details | ASME B16.11 |
| Screwed End Details | ASME B1.20.1 |
| Size Range | 1/2" - 4"(DN15 - DN100) |
| ASME Class | Class 150 to 4500 |
| Materials | A105,LF2,F5,F11,F22, F304/ F304L, F316/ F316L,F347, Monel |
| Irims | F6a / F316 / F304 / F316L / F321 1 F51 / F55 / nconel / Stellied or Hardfaced |
| Ends | Flange ends, Butt-weld End, Socket Weld End, Screwed End |
| Operation | Manual |
Wafer Style Butterfly Valves


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