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Solid Flange Forged Steel Check Valve
Solid Flange Forged Steel Check Valve
Solid Flange Forged Steel Check Valve
Solid Flange Forged Steel Check Valve
Solid Flange Forged Steel Check Valve
Solid Flange Forged Steel Check Valve

Solid Flange Forged Steel Check Valve

Min.Order: 1
Product origin: Beijing, China
Infringement complaint: complaintComplaint
US$ 38 ~ 1500

Description
Check valves can also be used in pipelines that supply auxiliary systems in which the pressure may rise above the system pressure. Check valves can be mainly divided into swing check valves (rotating according to the center of gravity) and lifting check valves (moving along the axis). The function of this type of valve is to allow the medium to flow only in one direction and prevent the flow in the opposite direction. Usually, this kind of valve works automatically. Under the action of fluid pressure flowing in one direction, the disc opens. When the fluid flows in the opposite direction, the fluid pressure and the self-overlapping disc of the disc act on the valve seat, thus cutting off the flow. Among them, the check valve belongs to this type of valve, which includes swing check valve and lifting check valve. Swing check valve has a hinge mechanism, and a disc like a door freely rests on the inclined seat surface. In order to ensure that the disc can reach the proper position of the valve seat surface every time, the disc is designed in the hinge mechanism, so that the disc has enough swing space and makes the disc truly and comprehensively contact with the valve seat. The disc can be made entirely of metal, or it can be inlaid with leather, rubber, or a synthetic covering, depending on the performance requirements. When the swing check valve is fully opened, the fluid pressure is almost unimpeded, so the pressure drop through the valve is relatively small. The disc of the lifting check valve is located on the sealing surface of the upper seat of the valve body. This valve is like a globe valve except that the disc can be lifted freely. The fluid pressure makes the disc lift from the sealing surface of the valve seat, and the medium backflow causes the disc to fall back to the valve seat and cut off the flow. According to the service conditions, the disc can be all-metal structure, or it can be in the form of embedding rubber pad or rubber ring on the disc frame. Like the globe valve, the passage of fluid through the lift check valve is narrow, so the pressure drop through the lift check valve is larger than that of the swing check valve, and the flow of the swing check valve is rarely restricted.
Technical parameters and characteristics:
ProductSwitch valve
Product description Swing check valve
ModelH41
Size2"~60"(50mm~1500mm)
Operating temperature -196ºC~593ºCacc to material
Operating pressure150-2500 CLASS
MaterialA216 WCB,WCC;A217 WC6,WC9,C5,C12,C12A,CA15;A351 CF8,CF8M,CF3,CF3M,CF8C,CN3MN,CK3MCUN,CN7M;A352 LCB,LCC;A494 CW-6MC,CU5MCuC,M35-1;A995 4A(CD3MN),5A(CE3MN),6A(CD3MWCuN);ASME B 148 C95800,C95500 .etc
StandardAPI 6D,API 594,BS 1868,ASME B16.34
Face to faceASME B16.10
Connection endASME B16.5,ASME B16.25
Test tandardAPI 598,ISO 5208
OperationAuto
Application fieldselectric power industry, petroleum refining, petrochemical industry, offshore oil, chemical industry and etc.
Seal material13Cr, STL, rubber
Remark1Apply to prevent the backflow of medium in the pipeline or the device.
Remark2Large size check valve with hydraulic damping cylinder to prevent crash between disc and seat.
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