Product overview:
Forged steel gate valve ’s valve cover design have three forms. The first is a bolt type valve cover, according to this design the form of the valve, the valve body and valve cover bolt connection, spiral wound gasket (304 with flexible graphite manufacturing) or metal ring seal. Second kinds of design form is welding type valve cover, according to this design the form of the valve, the valve body and valve cover with a threaded connection, welded seal. Customers with special requirements can be used when full penetration welding connection. The third is self tight pressure valve cover, according to this design form design of the valve, the valve body and valve cover with a threaded connection, pressure from the seal ring seal.
Technical specification:
Design and manufacture: API 602,BS5352,ANSI B16.34
Size: 1/2" ~ 3"（DN10-50）
Pressure range: 150LB-2500LB （PN16-100）
Valve body material: A105; LF2;F5;F22;304(L),316(L); Monnel; 20 alloy; etc.
Design features:
Bolt Connect the valve cover,the lever bracket
Or welding valve cover and lever bracket
Pressure self-tightening sealing cover
Connection: flange, thread, socket welding, butt welding
