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Swing check valve

Design code

Design standard: API 6D, BS 1868, GB/T 12236,
Structural Length: ASME B16.10, API 6D, GB/T 12221, ASME B16.5, ASME B16.47, GB/T 9113 ,HG/T 20592, HG/T 20592
Connection standard: ASME B16.5,ASME B16.47,GB/T 9113 ,HG/T 20592,
Test and Inspection: API 598,ISO 5208,GB/T 26480
Pressure-Temperature: -46~+600°C

  • Product Profile

    The function of swing check valve is to prevent the backflow of the medium in the pipeline. Swing check valve belongs to the automatic valve category, the opening and closing parts rely on the force of the flowing medium to open or close by itself. Check valve is only used for one-way flow of media on the pipeline, to prevent the media backflow, in order to prevent accidents.

  • Design Feature

    Swing check valve is suitable for pressure Class 150-2500, PN16-PN420, working temperature -46-600 ° C petroleum, chemical, pharmaceutical, fertilizer, electric power industry and other conditions of the pipeline, to prevent the backflow of the medium.


    Its main structural features are:


    1. the valve can be used bolt bonnet structure and pressure seal bonnet structure.


    2. sealing surface surfacing cobalt-based hard alloy, wear-resistant, corrosion-resistant, good anti-scratch performance, long service life.


    3. internal pin structure, reduce the external leakage point, reliable use.


    4. the material of parts and flange, butt-welding end size can be reasonably selected according to the actual working conditions or user requirements, to meet the needs of various projects.


  • Data download