Qingfa Ship Equipment 青阀船舶设备

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The working principle of a check valve

The working principle of a check valve

Check valves can also be used in pipelines that supply auxiliary systems where the pressure may rise above the system pressure.

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Installation methods and precautions for check valves

Installation methods and precautions for check valves

The disc-shaped valve disc of a swing check valve rotates around the valve seat passage.

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The working principle of a gate valve

The working principle of a gate valve

The gate valve's closing member is a gate plate. The gate plate moves perpendicular to the fluid flow direction.

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The movement of a gate valve

The movement of a gate valve

When the gate valve is closed, the sealing surface can rely solely on the medium pressure for sealing;

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Advantages and disadvantages of gate valves

Advantages and disadvantages of gate valves

Low flow resistance. The internal medium channel of the valve body is straight through, and the medium flows in a straight line, resulting in low flow resistance.

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Applicable scenarios for butterfly valves

Applicable scenarios for butterfly valves

Due to the relatively large pressure loss of butterfly valves in pipelines, the robustness of the butterfly plate against the pressure of the pipeline medium when closed should also be considered.

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Qingdao Qingfa

Integrating product research and development, manufacturing, and sales, specializing in the production of various marine valves

  • Home

  • About Us

    • Profile

    • Culture

  • Product

    • Marine stop valve

    • check valve

    • Gate valve

    • Fire valve

    • Wave breaker valve

  • Blog

    • Company News

    • Industry News

  • Message

  • Contact Us

Qingdao Qingfa Chuanbo Shebei Zhizao

Add: Qingdao City, Jimo District, Qingdao City, Jimo District S503
Manager Cao:+86-15020079366
Email:sales@qdqingfa.com

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