Main materials
Valve body: gray cast iron, ductile iron, stainless steel
Valve plate: ductile iron, stainless steel, aluminum alloy
Valve shaft: carbon steel, stainless steel
Seat: Rubber
Seal: O-ring

Features of soft seal flange butterfly valve:
1. The design of soft sealing flange center line butterfly valve is novel and reasonable, with excellent structure, quick opening and closing, high bidirectional sealing performance, small torque value and superior machining performance of parts.
2. Small operating torque, convenient operation, labor saving and dexterous; flow characteristics tend to be straight line, good regulation performance.
3. Flange connection installation is convenient, vertical and horizontal installation can be.
4. The sealing element can be replaced, the sealing performance is reliable, and the two-way sealing is zero leakage.
5. The sealing material has the characteristics of aging resistance, corrosion resistance and long service life.
6. The valve can be used as vent valve at the pipe end with reliable performance.

Technical parameter
Product model: D41X, D341F
Product diameter: DN50 ~ 1000mm
Product pressure: 1.0-1.6MPa
Applicable temperature: - 23 ~ + 121
Applicable media: fresh water, sewage, sea water, gas, etc