High Pressure Check Valve

High-Pressure Check Valve Class ratings refer to the qualification of a valve according to its pressure-temperature rating, where each rating has a designated class number. ASME B16.34 is a common valve standard that provides class ratings indicative of the maximum allowable working pressure at a particular temperature. These ratings range from Class 150 to Class 4500, depending on the type of valve material.

High-Pressure Check Valve is an automatic valve that automatically opens and closes by the force generated by the flow of the medium itself in the pipeline.The check valve is used in the pipeline system. Its main function is to prevent the backflow of the medium, the reverse rotation of the pump and its drive motor, and the discharge of the medium in the container.The check valve can also be used to supply the auxiliary system whose pressure may rise above the main system pressure.

1.ANSI Stainless Steel Flanged Swing Check Valve with High Quality Specifications:

Size: 1 1/2'~36''

Pressure rating: 150LB~4500LB

Material: A351 CF8M/CF8/CF3/CF3m, A216 WCB,A352 LCB,A217 WC6/WC9

Suitable Temperature: -196ºC~450ºC(Different temperature choose different materials)

Suitable Medium: Water, Oil and natural gas and other causticity medium (Different raw material for different medium)

2.ANSI Stainless Steel Flanged Swing Check Valve with High Quality Standards:

Standard Compliance: ANI 6D, BS 1868

Pressure-Temp. Rating: ANSI B16.34

Face to Face: ANSI B16.10

End Flange: ANSI B16.5/ASME B16.47

Butt Welding Ends: ANSI B16.25

Inspection and Test: Tested to API 598, BS 6755, Certified to EN10204 3.1B

Size: 2~36in

Working Pressure: 150LB~2500Lb

Suitable Medium: Oil, Nature Gas, Water, Steam; Acid, Alkali, Organic Compounds

3.ANSI Stainless Steel Flanged Swing Check Valve with High Quality Product Features:

Bolted bonnet, and the type of middle flange gasket may be different according to pressure class; Check valve in 600LB may adopt pressure sealed structure.

Disc stop device to prevent disc from being opened too high, thus causing failure to be closed down.

Solid pin is precisely installed and provided with high intensity to ensure operational performance and service life of valve.

Rocker arm is given enough intensity. Upon being closed down, it has enough freedom for the close-down of valve disc.

Large size check valve are provided with lifting rings for the convenience of hoisting.

4.ANSI Stainless Steel Flanged Swing Check Valve with High Quality Product of Structure :

Butterfly Check Valve

1,Bolted bonnet

2,Swing type disc

3,For horizontal or vertical lines

4,Flanged END

Check valve Application

Check valve refers to the opening and closing parts of the circular disc and by its own weight and media pressure to produce action to block the media flow back valve. Automatic valve class, also known as check valve, one-way valve, back-flow valve or isolation valve.

By the structure: lifting check valve, swing check valve and butterfly check valve

1) Lift check valve is divided into vertical check valve and horizontal check valve.

2) Swing check valve is divided into single, double and multi - flap type.

3) Butterfly check valve is straight-through type.

The above check valve in connection form can be divided into thread connection, flange connection, welding connection and clamping connection four.

Check valve characteristics

①To prevent media flow back.

②Prevent pump and drive motor reversal.

③Discharge container medium.

④Selection of more, a wide range of application.

⑤Large fluid resistance, poor sealing.

Product Details of ANSI Flanged Swing Check Valve

Strong production capacity, perfect production facilities and perfect testing methods

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