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  • Api6a High Quality Check Valves - China

    price: contact company for price

    Check valve is designed and produced entirely according to

    the requirements of API Space 6A Equipment Specifications

    for Wellhead and Christmas Tree, able to be used

    interchangeably with corollary equipment at home and abroad

    that is in line with API Space 6A Standard.

    It relies on medium pressure to achieve the metallic seal

    between valve trim and valve body, and the higher the

    pressure of medium is, the better the sealing property will

    be. Pipeline pressure can be bearable always to the inside

    of valve cavity.

    The valve body is made of alloy steel forgings, thus has a

    strong mechanical property and safe and reliable

    performance, able to bear quite high pressures.

    Valve bonnet and valve body are connected by bolts; sealing

    is the seal ring on valve bonnet which seals off the inner

    wall of valve body, therefore the sealing property is

    reliable. It minimizes the assembling clearance between

    valve bonnet and valve body ( designed to be 0) , thereby to

    reduce corrosive mediums’ corrosiveness to bolt and screw

    hole and reduce bolt load.

    The sealing surface of valve trim and valve body is welded

    with carbide alloy, which improves abrasive resistance and

    corrosion resistance. The valve trim is made of anti- sulfur

    steel and the hardness of other parts is limited, so the

    valve can be used in H2S environments.


    Company Contact:


    • Phone: 86051586118776

    • Address: No.25,Fourth Road,Jianhu Private Industrial Park, Yancheng, China

    • Email: Email


    Published date: May 5, 2015 -

    • Business Description: Jianhu Jielin Petrochemical Machinery Co., Ltd. is located in Jianhu Industrial Park, , Jiangsu Province, known as a land flowing with milk and honey. It is a modern large sized enterprise specialized in researching and developing, manufacturing and selling various oilfield machines and spare parts. Our company has been authorized by China Classification Society for application of ship products and accessories as well as certificates of API 6A, 16A and 16C, etc. We mainly produces API 6A high and middle pressure valves, with the technical performance being that nominal working pressure is PN2.5 105MPa and nominal diameter is DN3 1000mm; in addition, our company also manufactures API 6A wellhead equipment for oil (gas) extraction, choke and kill manifold, mud manifold, drilling accessories and blowout preventer, etc.

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