Tag Archives: Valve stem

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  Tungsten carbide valve stem

  Posted on July 28, 2014 by admin in Company News

  On date July.26, 2014,we finished a new batch of  Tungsten carbide stem for valve parts used for Oil and Gas to our Russia Client and India Client.

  Material:  YG8 Tungsten carbide +AISI410

  Bond Strength =105 Mpa.

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  New PR2 Grade API 6A gate valve 3-1/8″ 2M flange end

  Posted on November 21, 2013 by admin in Product News

  On date Nov.21, 2013, we finished a new batch PR2 gate valve for our overseas customer, the valve specification is as follows:

  API 6A gate valve 3-1/8″ 2M flange end, ring type joint ,temperature rating Y (0-650 DEG F),

  Material class  ‘DD’-05,  PSL-1, PR-2, expandable gate valve, non rising stem, bolt bonnet, pressuring derating 2000 PSI, ambient rerated to 1,430 PSI  650 DEG F, hand wheel operated, RX-31 annex- G-design And rating of equipment

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• Knowledge for valve parts 002

  Posted on August 12, 2013 by admin in Product News

  Chapter C: Valve stem

  The valve stem bearing the tensile, compressive and torsional forces while the valve opening and closing. The valve stem could contact with media directly, and could also have relevant friction movement against valve packing. So, the material used for valve stem has to be sufficient strength and toughness under certain required temperature. And also has to be anti-corrosion, scratch resistance, and good manufacturability.

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• Knowledge for Valve parts-001

  Posted on August 6, 2013 by admin in Product News

  There are a lot of valve parts in different materials to be used for valves, API valves, ANSI Valves, petroleum valves, including various grades of ferrous and nonferrous metals and alloys, a variety of non-metallic materials. Basically, the material selection principle is based on follows

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