1. Product design and manufacture meet the American National Standard ANSI BI16.34, British Standard BS1873 and other foreign advanced standards.
2. barrel or body shape is streamlined, beautiful shape, the shape of straight-through flow, fluid resistance.
3.down part (disc) and the valve seat is sealed with cone seal, the closing force is small, erosion resistance, reliable seal.
4. replaceable seat for the seat can be any combination of on and off the matching pieces of the sealing surface materials to meet the conditions required to extend service life.
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