Bi-directional Knife Gate Valve

Short Description:

Size Range: 2″ – 36″ or DN 50 – DN 900

Pressure Rating: Class150 or PN6 – PN16

Temperature Range: 0℃-200℃

Connection: Wafer, Lug, Flange

Structure: Bi-directional sealing

Material: GG25, GGG40, WCB, CF8, CF8M etc.

Operation: Manual, Gear, Pneumatic, Chain Wheel etc

Product Detail

Applicable Standards


Product Tags


• Bi-directional sealing

• Resilient seat

• Self-cleaning mechanism

• Non-rising stem or rising stem

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  • Design & Manufacture: MSS SP-81
    Face to Face: MSS SP-81, ASME B16.10, EN 558
    Connection End: ASME B16.5, EN 1092, JIS B2220
    Test: MSS SP-81

    NSEN strictly follow the free repair, free replacement and free return services within 18 months after the valve is ex-works or 12 months after being installed and used on the pipeline after ex-works (upon which comes first). 

    In the case the valve gets failed due to the quality problem during the use in the pipeline within the quality warranty period, NSEN will provide free quality warranty service. The service shall not be ended until the failure is surely made settled and the valve normally workable as well as the client signs the letter of confirmation.

    After expiration of the said period, NSEN guarantees to provide the users with on-time quality technical services whenever the product needs to be repaired and maintained. 

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