Product features:
Reasonable design, compact structure, easy installation and easy maintenance. Using eccentric structure, reduce the friction sealing ring, prolong service life. "T" shape structure, the valve sealing ring.the sealing deputy linear sealing. Completely sealed, zero leakage. Drag coefficient is 0.02 Mpa
Second, the product standards:
Accord with GB12238-89 general valve flange and connected to the clamp butterfly valve standards.
Test in accordance with GB/T13927-92 standard for general valve pressure test.
Side flange connection in accordance with GB/T 17241.6-98 standard for grey cast iron pipe flange and gasket. At the same time meet BS4504 ISO2084, DIN2501 PN1.0 in Mpa, PN1.6 Mpa flange connection standard.
Three, the structure length:
(1) short structure accord with GB12221-89 the length of flange connection structure of metal valve, wafer butterfly valve series size specified length.
Long structure accord with GB12221-89 (2) the length of flange connection structure of metal valve, flange butterfly valve series size specified length.
