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heck valve for the pipeline system, its main role is to prevent the media back, to prevent the pump and its drive motor reversal, as well as the release of the medium inside the container. Check valve can also be used to provide the pressure of the auxiliary system which can rise to more than the main system pressure supply pipeline. Check valve according to the different materials, can be applied to all kinds of media in the pipeline. Check valve installed in the pipeline, which becomes one of the components of the complete fluid pipeline, the valve will open and close the process by which it is affected by the system transient flow state; in turn, the valve closure characteristics have made effect on the fluid flow state。

Pipe flange

Nominal pressure

Normal product model

JB/T74-90
GB9112-9124、HG20592-20614 

PN1.0MPa 

H71H-10C 

H71W10P 

H71W10P8 

H71W10P3 

H71W10R 

H71W10R8 

H71W10R3 

PN1.6MPa 

H71H-16C 

H71H-16P 

H71H-16P8 

H71H-16P3 

H71H-16R 

H71H-16R8 

H71H-16R3 

PN2.5MPa 

H71H-25 

H71H-25P 

H71H-25P8 

H71H-25P3 

H71H-25R 

H71H-25R8 

H71H-25R3 

PN4.0MPa 

H71H-40 

H71H-40P 

H71H-40P8 

H71H-40P3 

H71H-40R 

H71H-40R8 

H71H-40R3 

PN6.3MPa 

H71H-63 

H71H-63P 

H71H-63P8 

H71H-63P3 

H71H-63R 

H71H-63R8 

H71H-63R3 

PN10.0MPa 

H71H-100 

H71H-100P 

H71H-100P8 

H71H-100P3 

H71H-100R 

H71H-100R8 

H71H-100R3 

PN16.0MPa 

H71H-160 

H71H-160P 

H71H-160P8 

H71H-160P3 

H71H-160R 

H71H-160R8 

H71H-160R3 

CB/T9112-9124、HG20615-20635、SH3406 

PN2.0MPa 

H71H-20C 

- 

H71H-20P8 

H71H-20P3 

- 

H71H-20R8 

H71H-20R3 

PN5.0MPa 

H71H-50 

- 

H71H-50P8 

H71H-50P3 

- 

H71H-50R8 

H71H-50R3 

PN11.0MPa 

H71H-110 

- 

H71H-110P8 

H71H-110P3 

- 

H71H-110R8 

H71H-110R3 

PN15.0MPa 

H71H-150 

- 

H71H-150P8 

H71H-150P3 

- 

H71H-150R8 

H71H-150R3 

ANSIB16.5 

Class150 

H71H-A1C 

- 

H71H-A1CP8 

H71H-A1P3 

- 

H71H-A1R8 

H71H-A1R3 

Class300 

H71H-A3 

- 

H71H-A3P8 

H71H-A3P3 

- 

H71H-A3R8 

H71H-A3R3 

Class600 

H71H-A6 

- 

H71H-A6P8 

H71H-A6P3 

- 

H71H-A6R8 

H71H-A6R3 

Class900 

H71H-A9 

- 

H71H-A9P8 

H71H-A9P3 

- 

H71H-A9R8 

H71H-A9R3 



Order note:
If there is no selected model, please provide detailed parameters, such as medium, temperature, pressure, caliber, material and so on. Our technicians will select for you
Two. Provided that the selected model is available according to the selected model
Three, non standard products need to provide samples or confirmed by drawings
Note: the information is for reference only, or incomplete, so please feel sorry for the inconvenience. The company can choose according to different requirements and parameters. The company has a variety of sizes, pressure, different materials, connections, drive mode, to meet the different needs of various types of gate valve. Please contact 021-6651 8677 or consult online.Check valves for pipeline systems, its main role is to prevent the reverse flow of media, prevent the pump and its drive motor machine machine reversal, and the release of media in the container. Check valves can also be used to feed auxiliary systems in which the pressure may rise above that of the main system. Depending on the material, check valves can be applied to a variety of media pipeline. When the check valve is installed on the pipeline, it becomes one of the fluid components of the complete pipeline. In turn, the closing characteristics of the disc have an effect on the flow state of the fluid.

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