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HUB End Double Disc Check Valve

HUB End Double Disc Check Valve

Structural Feature Short structural length,only 1/4~1/8 of that of traditional flanged check valve; Low volume,light weight,only 1/4~1/20 of those of traditional flanged check valve; Quick valve disc closedown,low water hammer pressure; Applicable for and easily installed for vertical or...
Product Details


Check Valve is applicable for various pipelines with nominal pressure of PN1.0MPa~42.0 MPa, Class150~2500 and nominal diameter of DN15~1200mm, NPS1/2-48 and working temperature of -196~540 to be used for protecting from medium back flowing. The different materials selection can apply to the medium involving water, steam, oils, nitric acid, strong oxidizing medium and urea etc.




Pressure range:


Working   temperature: 


Suitable   medium:

Water, steam, oil products, nitric acid, acetic acid

Body material:

carbon steel, stainless steel, alloy steel, bronze



Main Feature

It is opened or closed by the valve clack moving to-and-fro through the valve body guiding axle under the spring effect.

The valve body passageway is designed in a wing-shaped streamline type, allowing the medium to flow through the passageway rapidly and steadily with no noise.

It can be installed on horizontal and vertical pipelines.

Main Parameter Specification

1. Inspection and test: 

    API598, JB/T9092;

2. Design and manufacture:

    API594 ,API 6D, JB/TB8937;

3. Face to face and end to end:

    API594, API6D, DIN3202, JB/T8937;
4. Pressure-temperature rating:

    ASME B16.34, DIN2410, GB/T9124, HG20625, SH3406, JB/T74;
5. Pipe flange: 

    JB/T74~90, JB/T9112-9124, HG20592~20635, SH3406, ASME B16.5, DIN2543~2548, GB/T13402, API605, ASME B16.47. 

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