Flange Flexible Disc Check Valve

Product Introduction:

The valve that opens or closes on its own by the force of the flow of the medium to prevent the medium from flowing back is called a check valve. Check valves belong to the category of automatic valves, which are mainly used in pipelines where the medium flows in one direction, and only allow the medium to flow in one direction to prevent accidents.

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Description

Technical Parameters

1. The shell material of the spherical check valve can be made of stainless steel, and the hollow sphere of the seal can be wrapped with polytetrafluoroethylene engineering plastic, so it can also be applied to the pipeline of general corrosive media, and the working temperature is -101--150 Between ℃, its nominal pressure is ≤4.0MPa, and the nominal passage range is between DN200-DN1200;

2. When selecting check valves for incompressible fluids, the required closing speed must be evaluated first, and the second step is to select the type of check valve that may meet the required closing speed;

3. The check valve for compressible fluid can be selected according to the similar method of check valve for incompressible fluid. If the medium flow range is large, the check valve for compressible fluid can be used A deceleration device, if the medium flow is stopped and started quickly and continuously, such as the outlet of the compressor, a lift check valve is used;

Material	Body	Ductile Iron,QT450
	Screw	SS304 Stainless Steel
	Gasket	NBR
End Connections	Flange × Flange
Flanges	ANSI150LB, BS 5404,GB Standard
Available Size	DN50 thru DN300 (3" thru 12")
Type	Flexible Disc
Working pressure	16 bar
Color	Red/Blue
Media	Water

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1) Flange End:ANSI150LB/BS5404;

2) Screw Material:SS304 Stainless Steel;

3) Gasket Material:DUCTILE IRON;

4) Body Material:Ductile Iron,QT450;

5) Disc Material:Ductile Iron,QT450,COVERD BY NBR;

6) Surface Finishing:Epoxy Red or Blue.