Flat bottom Design: No groove on the valve back, no easy deposition of welding slag, gravel, sand and other debris to ensure reliable seal, fluid flow;

Overall Plastic Package: Use good quality rubber to overall and entire package on the flashboard, the after curing ram can ensure accurate geometry, in line with the précised casting valve body to form a seamless seal vice, to ensure zero leakage of the valve. And gluing is very strong between rubber and ductile iron gate, as well as flexible and good memory;

Cast Shell body: using precision casting and precision geometry to make no any processing on valve internal, realize the random match of gate and body , which is very easy for maintenance and replacement;

Decay Resistant coating: Coat with epoxy resin on the connection part of inside and outside of the body and surface in contact with the media, The stem uses stainless steel, stem nut uses copper alloy material, Full coat the flashboard during the Chinese New Year to avoid rust, can be used for pure water system , sewerage and underground bad environment;

Online Maintenance: It adopts three "O"-ring seal for valve body and valve stem, reduce torque headstock, reduce water leakage in big scale, and can replace the seal ring online.