10 Years Manufacturing Experience

China Floating Valve balls factory and manufacturers | Xinzhan

Short Description:

  • Size: 1/4”-10” ( DN8mm~250mm)
  • Pressure Rating: Class 150~300 (PN16~50)
  • 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: Ra0.2-Ra0.4
  • Concentricity: 0.05
  • Product Detail


    Product Tags

    Floating valve balls are used in floating ball valves. The ball is held in the position by the compression of the two elastomeric seats against the ball In a floating ball valve. The ball is free to float inside the valve body. The stem of floating ball valve is connected to a slot at the top of the ball which allows the ball to rotate a quarter turn (90 degrees).  The shaft allows for a certain amount of lateral movement of the ball that is generated from the upstream pressure acting on the ball.  This small lateral movement, produces a load on the ball that presses it against the downstream seat which improves leak tightness of valve. This type of valve design is capable of bi-directional shut-off. Note that, the floating valve is very difficult to operate when upstream pressure is high.

    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

    Xinzhan valve balls are used in various ball valves which are used in the fields of petroleum, natural gas, water treatment, medicine and chemical industry, heating, etc.

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

    Packaging & Shipment
    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.

    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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