10 Years Manufacturing Experience

China China Stem Balls factory and manufacturers | Xinzhan

Short Description:

  • Specifications:: From 1 1/2”-10” ( DN40mm~250mm)
  • Pressure Rating: Class 150~600 (PN16~100)
  • Materials: ASTM A105, A350 LF2, A182 F304, A182 F316, A182 F6A, A182 F51, A182 F53, A182 F55, A564 630 (17-4PH), Monel, Inconel, etc.
  • Surface Treatment: Polishing, electroless nickel plating (ENP), hard chromium, tungsten carbide, chromium carbide, stellite(STL), inconel, etc.
  • Roundness: 0.01-0.02
  • Roughness: Ra 0.2-Ra 0.4
  • Concentricity: 0.05
  • Product Detail


    Product Tags

    The ball with stem is usually used for high pressure trunnion ball valves or cryogenic ball valves. More processed and high processing difficulty, the cost will is more than the regular balls. Sometimes for lowing production cost, stems can be welded with balls.

    Valve ball with stem, stem ball, stem valve balls, ball with stem.

    Valve Balls Characteristics
    The two most important characteristics of the valve balls are the roundness and the surface finish. The roundness must be controlled especially in the critical sealing area. We are able to manufacture valve balls with extremely high roundness and high surface finish tolerances.

    What types we can manufacture for valve balls
    Floating or trunnion mounted valve balls, solid or hollow valve balls, soft seated or metal seated valve balls, valve balls with slots or with splines, and other special valve balls in every configuration or modified balls or specification that you can design.

    Processing Steps:
    1: Ball Blanks
    2: PMI and NDT Test
    3: Heat Treatment
    4: NDT, Corrosion and Material Properties Test
    5: Rough Machining
    6: Inspection
    7: Finish Machining
    8: Inspection
    9: Surface Treatment
    10: Inspection
    11: Grinding & Lapping
    12: Final Inspection
    13: Packing & Logistics

    Stem balls are mainly for high pressure ball valves or cryogenic ball valves.

    Major Markets:
    Russia, South Korea, Canada, United Kingdom, Taiwan, Poland, Denmark, Germany, Finland, Czech Republic, Spain, Italy, India, Brazil, United States, Israel, etc.

    Packaging :
    For small size valve balls: blister box, plastic paper, paper carton, plywood wooden box.
    For big size valve balls: bubble bag, paper carton, plywood wooden box.

    Shipment: by sea, by air, by train, etc.

    Payment: By T/T, L/C.

    - Sample orders or small trail orders can be optional
    - Advanced facilities
    - Good production management system
    - Strong technical Team
    - Reasonable & cost-effective price prices
    - Prompt delivery time
    - Good after-sales service

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