The Power Station Hard Seal Electric Butterfly Valve

We are offering the basic design parameters nominal size: 50-2000 - mm dn, 1 ~ 78 structure length: gb, ansi b16.10. 12221-89 nominal pressure: pn 1.0 ~ 6.4 mpa class 150 ~ 300 lb the connection form a. The flange: jbt 79-94. Gb9112 ~ 9131 ~ 9131, hgj 44 ~ 76-76, ansib 16.5 b, welding, gb, ansi b16.25. 12224-89 use the temperature: - 40 ~ 50 ~ 450 degree centigrade, 300 degree centigrade, -, - 101 ~ 600degree centigrade, - 101 ~ 800degree centigrade the basic error: 2.5% back to the poor: 2% or less dead zones: 0.8% or less applicable medium: water, gas, oil and corrosive medium