Size Range : DN40-DN1200
Body Construction : Flange
Temperature : -40℃-275℃
Pressure : PN10/PN16/PN25/PN40/150LB/300LB
Material:
Size | DN40-DN1200 | |||
Pressure(MPa) | PN10/PN16/PN25/PN40/150LB/300LB | |||
Temperature (℃) | ≤425℃ | ≤200℃ | ||
Flow medium | Water, oil or non-corrosive media | Nitric acid media | acetic acid media | |
Material | BODY /DISC | WCB | CF8/304 | CF3M/316L |
SHAFT | 2Cr13 | 304 | 316L | |
BODY SEALING | Overlay 507 | - | - | |
DISC SEALING | 304+Graphite | 304+PTFE | 304+PTFE | |
PACKING | Graphite | PTFE | PTFE |
Features:
1. The hard-seal butterfly valve adopts a three-eccentric hard-seal structure, with almost no wear on the valve seat and butterfly plate, and has a tighter sealing function as it closes.
2. The sealing ring is made of stainless steel, which has the dual advantages of metal hard sealing and elastic sealing. It has excellent sealing performance no matter under low or high temperature conditions, and has the characteristics of corrosion resistance and long service life.
3. The sealing surface of the butterfly plate is made of cobalt-based hard alloy surfacing. The sealing surface is wear-resistant and has a long service life.
4. The large-sized butterfly plate adopts a quilted frame structure, which has high strength, large flow area and small flow resistance.
5. According to user needs, hard-sealed butterfly valves can be designed with a two-way sealing function. When installed, they are not restricted by the flow direction of the medium or affected by the spatial position, and can be installed in any direction.