Single-seat Shut-off Valve

The single-seat control valve adopts a fluid pressure unbalanced spool structure. The unique combination structure of the single-seat spool and the cage-type top-guided trim enables it to not only have the advantages of a single-seat control valve but also possess the dynamic stability of a cage-type control valve. It improves the repeated positioning accuracy of the spool, thus ensuring the tightness of the valve seat seal and being easy to shut off. The quick-dismantling trim combination is very convenient for the replacement of the trim. It is suitable for various media, such as various liquids, gases, slurries, polymers, and high-temperature media, in occasions where both control and shut-off are required.

Control Valve Parameter Description

Trim Features

  • Top-guided
  • Unbalanced trim
  • Quick-dismantling cage structure

Valve Body Type

  • Straight-through type
  • Angle type

Bonnet Type

  • Standard type
  • Heat-dissipating type

Flow Characteristic

  • Quick opening

Size Range

  • DN15 - 80 (1/2” - 3”)

Pressure Rating

  • PN1.6, 4.0, 6.3Mpa (ANSI 150, 300, 600LB)

Leakage Class

  • ASME B16.104 V (standard metal valve seat)

Pipeline Connection

  • Flanged type
  • Butt-welded type

Applicable Temperature Range

  • -196° ~ 550°

Actuator Type

  • Pneumatic diaphragm actuator
  • Pneumatic piston actuator
  • Electric actuator