The butterfly valve series produced by zhejiang zhengfeng valve is designed with stem anti-blow design, which meets the requirements of API609 and ANSI B31.1.The sealing surface is designed with triple eccentricity and flexible multi-layer metal and graphite overlapping, which ensures good sealing performance and reduces operating torque.The elastic properties of the multilayer composite metal sealing ring enable the valve to have zero leakage performance.Welcome the majority of users to inquire.
* Nominal diameter : 48 inch
* Pressure rate: 150LB
* Connection Type : Flange ends
* Operation : Bare Shaft
* F/F length : 470 mm
* Valve Structure : Triple Offest
* Body: A216 WCB
* Disc: A351 CF8
* Seat: SS316+Graphite
* Stem: AISI 316
* Suitable Temperature : -29°C~425°C
* Design STD: API 609
* End flange dimension:ASME B16.5
* F/F dimension:API 609
* Country of origin:China
1.Nominal Pressure: CLASS 150LB~900LB
2.Nominal diameter: NPS 2''~80''
3.Main material:Cast steel、stainless steel、Duplex steel、AL bronze...
4.Ends tyoe:Flange、LUG、Wafer、Butt Weld
5.Operating way:Lever、Gearbox、Electric actuator、Pneumatic actuatorThe butterfly valve series produced by zhejiang zhengfeng valve is designed with stem anti-blow design, which meets the requirements of API609 and ANSI B31.1.