Structural features: 

1.The selection of materials is suitable for domestic and external standards, with reasonable structure and beautiful appearance.  

2.Disc and seat sealing surface shall be made of iron base alloy surfacing or Stellite (Stellite) cobalt base hard alloy surfacing, wear resistant, high temperature, corrosion resistance, good abrasion resistance and long service life. 

3.The valve stem has good corrosion resistance and abrasion resistance. 

4.Various piping flange standard and flange cover type can be used to meet all engineering needs and user requirements. 

5.The valve body material is complete, packing and gaskets can be selected according to the actual conditions or users, which can be applied to various pressure, temperature and medium conditions.

6.Pour sealing adopts screw connection sealing seat or ontology austenitic stainless steel welding and become, reliable sealing, can change the packing without downtime, convenient and quick, do not affect system operation.