[Three-eccentric Center Wafer Metal Seal Butterfly Valve]——The wafer type hard seal butterfly valve adopts a precision J-shaped elastic seal ring and a three-eccentric multi layer metal hard seal structure, which has a tighter sealing function. With good corrosion resistance and long service life, the valve has a two-way sealing function, and the product meets the national GB/T13927-92 valve pressure test standard.
Features of wafer type hard seal butterfly valve:
1. The valve adopts a three-eccentric sealing structure, the valve seat and the butterfly plate have almost no wear, and have a tighter sealing function.
2. The sealing ring is made of stainless steel, which has the dual advantages of metal hard seal and elastic seal. It has excellent sealing performance under low and high temperature conditions, and has the characteristics of corrosion resistance and long service life.
3. The sealing surface of the disc plate adopts surfacing cobalt-based hard alloy. The sealing surface is wear-resistant and has a long service life.
4. Large size butterfly board adopts quilt frame structure, high strength, large flow area and small flow resistance.
5. The valve has a two-way sealing function. It is not restricted by the flow direction of the medium during installation, nor is it affected by the position of the space. It can be installed in any direction.
6. The driving device can be installed in multiple stations (rotation 90° or 180°), which is convenient for users.
Materials of main parts of wafer type hard seal butterfly valve
Valve body: WCB, alloy steel, stainless steel, QT450-10
Butterfly plate: WCB, alloy steel, stainless steel, QT450-10
Valve shaft: 2Cr13 stainless steel, alloy steel
Sealing ring: stainless steel ring
Packing: flexible graphite
