Welded butterfly valve adopts precision J elastic sealing ring and triple eccentric metal hard seal structure, widely used in medium temperature of 425℃or less metallurgy, electric power, petrochemical industry, water supply and drainage and municipal construction and other industrial piping, used to adjust flow cutoff and body.

Welding butterfly valve is divided into cast-steel welding butterfly valve, stainless steel welding butterfly valve, chromium molybdenum steel welding butterfly valve. The welded butterfly valve adopts tri-eccentric structure, the valve seat and the plate sealing surface are all made of different hardness and stainless steel, with good corrosion resistance, long service life, this valve can have the bidirectional sealing function, the product conforms to the national GB/ t13927-92 valve pressure test standard.

Executive standard

Design standard: GB/T12238-89

Face to face: GB12221-89

Test standard: GB/T13927-92

Nominal size：DN50-DN1200

Pressure: 150LB~2500LB