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Check valve
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Check valve

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The main structural features are:

   1. The product has reasonable structure, reliable sealing, excellent performance and beautiful appearance.

   2. The sealing surface is welded with cobalt-based cemented carbide, which is wear-resistant, corrosion-resistant, corrosion-resistant, good in resistance to sassafras, and has a long service life.

  3. Built-in pin structure reduces external leakage points and is reliable in use.

  4. When the pressure is ≥16.0MPa, Class 1500, the valve cavity adopts a self-tight sealing structure. The higher the medium pressure, the better the sealing performance.

  5. The material of the parts, flanges, and butt-welding end sizes can be reasonably selected according to actual working conditions or user requirements to meet the needs of various working conditions.


  Design standards: API 6D, ASME B16.34, API 594, BS 1868, GB/T 12235, GB/T 12236, JB/T 8937

  Structural length: ASME B16.10, API 6D, GB/T 12221

  Connection standards: ASME B16.5, ASME B16.47, ASME B16.25, GB/T 9113, JB/T 79, HG/T 20592

  Pressure test: API 598, API 6D, GB/T 13927, GB/T 26480

  Pressure and temperature rating: ASME B16.34, GB/T 12224


  Main material: WCB, WC6, WC9, C5, CF8, CF8M, CF3, CF3M, A105

  Nominal diameter: NPS 1/2″~NPS 48″ DN50~DN1200

  Pressure range: CL150~CL2500 PN1.6~16.0MPa

  Working temperature: -29℃~+570℃


  The swing check valve is suitable for the pipelines of various working conditions in the petroleum, chemical, pharmaceutical, fertilizer, and electric power industries with a nominal pressure of PN1.6-16.0MPa, Class150~2500, and working temperature of -29-570℃ to prevent media Backflow.

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