①The valve adopts pressure self-tightening seal or valve body and valve cover gasket sealing structure, which is trustworthy! Safe and reliable to use.
②The valve disc adopts the structure of double gate with a universal top in the middle, which can automatically adjust the fit between the valve disc and the sealing surface of the valve seat to ensure the sealing of the valve. At the same time, the structure is easy to maintain, saves costs, and has good valve disc interchangeability.
③The valve disc and valve seat sealing surface are made of cobalt-chromium-tungsten cemented carbide by plasma spray welding. The sealing surface has high hardness, abrasion resistance, abrasion resistance and long service life.
④The valve stem is made of nitrided steel, the surface is nitrided, with high hardness, scratch resistance, corrosion resistance and long service life.
