The middle part of pressure seal gate valve using pressure self-tightening structure, make sure the valve has good sealing performance under high pressure and high temperature conditions. It's widely used for thermal power plant, petrochemical industry, metallurgy and other industrial sectors.
The sealing ring has two kinds of material, one is low carbon steel, the other is flexible graphite and SS 316, the sealing surface is welding with hard alloy, after the welding is finished, the thickness of metal layer should be 3mm or more, therefore, it has advantages of wear-resistant, temperature-resistant and anti-corrosion, greatly prolong the service life. Both ends adopt welding structure; the dimensions of welding groove can be customized on clients' requirements. The medium can be high temperature and high pressure water, steam, oil products and super-heated steam etc.
Size: 12 inch
Connection: BW End
Operation: Electric Actuator
1.The central connection adopts pressure self-tightening structure.
2.The disc and seat are welding with hard alloy.
3.High temperature creep resistance design.
4.The material of stem is precipitation hardening stainless steel by nitriding.
Pressure self seal gate valve
pressure seal flange gate valve
Self sealing pressure gate valve
BW gate valve for power station
Cast steel pressure seal gate valve
2inch to 24inch(DN50 to DN600)
900LB to 4500LB (PN100 to PN760)
A216 WCB、WCC; A217 WC6、WC9、C5、C12、C12A、CA15、 A351 CF8、CF8M、CF3、CF3M, etc
Hand wheel, Gear, Electric actuator, pneumatic actuator
Japanese power electric station plant valve standard E101.
Face to Face: