Forged Steel Check Valve A Device For Preventing The Reverse Flow Of A Medium
There are three kinds of valve cover design form.* The design form is welded valve cover, according to this design form of the valve, the valve body and the valve cover with thread connection, full welding seal. Penetration welding can also be used when customers have special requirements. The second is bolt type valve cover, according to this design form of the valve, the valve body and the valve cover with bolts and nuts connected, winding gasket (316 clamp flexible graphite manufacturing) seal. Customers have special requirements can also use metal ring connection. The third is the pressure self-tightening valve cover, according to this design form of the valve, the valve body and the valve cover with thread connection, internal pressure self-sealing ring.
Product structure reference drawing
Description of Structure
The valve in the process of use, the medium according to the diagram of the arrow direction flow.
1. When the medium flows in the specified direction, the valve disc is opened by the force of the medium; When the medium countercurrent, because of the weight of the valve disc and the valve disc by the effect of the reverse force of the medium, so that the valve disc and the sealing surface of the seat close, to prevent the purpose of the medium countercurrent.
2, the sealing surface of the valve body and valve disc adopts stainless steel surfacing.
3, the structure of the valve length according to GB12221-1989 regulations, flange connection size according to JB/T79-1994 regulations.
Main shape and connection dimensions unit:mm
|Product Model Number
|PN1.6/2.5/4.0/6.4MPa Class 800Lb