SAFE, Surpassing Quality!

Our factory requirements are based on
leakage class V in accordance with IEC 60534.

  • Three-Piece Internally Threaded Ball Valve
  • Three-Piece Internally Threaded Ball Valve

Three-Piece Internally Threaded Ball Valve

Three-piece ball valves offer multiple connections: internal threads, industrial heavy-wall welding, sanitary thin-wall butt welding, sanitary quick-connect, sanitary flanges, national standard flanges.

Three-piece ball valves use precision investment casting for compact structure. Spring-loaded seats ensure reliable sealing with low torque. Bottom-mounted stem design prevents blowout under overpressure.

Standard ISO top pads allow installation of pneumatic/electric actuators. Optional position feedback and smart positioners meet automation requirements.


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Product Details

Precision in Flow Control, Excellence from Zhongyuan

  • Product Features
  • ​Applicable Standards
  • ​Structural Configuration
  • Main Performance Parameters
  • Product Features

    Structural Features

    • Low flow resistance coefficient equivalent to equal-length piping

    • Simplified compact design with minimized dimensions/weight

    • Reliable sealing using domestic/imported PTFE seats (vacuum system compatible)

    • 90° quarter-turn operation enables rapid open/close cycling

    • Maintenance-friendly construction with removable seal assemblies

    • Full-open/close positions isolate sealing surfaces from media erosion

    • Seal configurations: Standard partial encapsulation; Optional full encapsulation


  • ​Applicable Standards

    Standard Specifications

    • Actuation: Manual/ISO 5211 top-mounted (Pneumatic/Electric)

    • Nominal Diameter: DN6-100 ISO12.7-101.6mm

    • Pressure Rating: PN16/Custom higher pressures

    • Temperature Range: Domestic PTFE -10~100℃/Imported PTFE -10~150℃

    • Media Compatibility: Gas/Water/Oil

    • Actuator Options: Manual/Pneumatic/Electric

    • Connection: Internal thread (BSPP/NPT)

    • Body Material: Cast steel/CF8 (304)/CF3 (304L)/CF8M (316)/CF3M (316L)


  • Structural Configuration


    20210718091525889.jpg


  • Main Performance Parameters

    SizeIDLHW
    DNNPS
    61/4"11.5675095
    103/8"12.5675095
    151/2"15715595
    203/4"208165118
    251"258674144
    321-1/4"3211082155
    401-1/2"3811593158
    502"50138100180
    652-1/2"65180126235
    803"80207137235
    1004"100264172310


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