■ introduction

Metal hard seal butterfly valve adopts elastic seal ring multi-layer metal hard seal structure, which is widely used in metallurgy with medium temperature ≤ 350C. Power, petrochemical, water supply and drainage and municipal construction and other industrial pipelines are used to regulate flow and cut off fluid. The metal hard seal butterfly valve adopts three eccentric sealing structure, with almost no wear between the valve seat and the flange plate; the sealing ring is made of stainless steel, which has the double advantages of metal hard seal and elastic seal. It has excellent sealing performance, corrosion resistance and long service life, no matter at low or high temperature.

Main parameters

Nominal pressure: PN 0.6MPa ~ 2.5MPa

Nominal diameter: DN50 ~ DN2000

Applicable medium: water, gas and oil

Applicable temperature: < 350C

Executive standard: JB / t8527-97

Test standard: GB / t13927-2008