The labyrinth cage is composed of cylindrical discs with many coaxially distributed labyrinths. According to different technological parameters of the media, different labyrinth specifications and piling layers are designed to form the cage and the cage divides the whole flow channel into several tiny circuitous or step flow channels, forcing the fluids to continuously change the flow direction and flowing area and gradually reducing the pressure of fluids, so as to prevent the occurrence of flash evaporation and cavitation and prolong the service life of the trim. The balanced cage plug is adopted. The closely fit plug and seat ensure very low leakage. The trim is suitable for service conditions under which blocked flow will easily be produced and cavitation will be caused.
Parameters of control valves:
Trim features:Body type:Bonnet type:Flow characteristic:Size:Pressure class:Leakage class:Pipe connection type:Applicable temperature range:Actuator type:
| cage guided balanced trim structure labyrinth cage structure balanced seal ring structure(normal temperature) metal seal ring structure (high temperature) |
| straight-through type angle type Z type body |
| standard type heat dissipation type cryogenic type |
| equal percentage linear quick open |
| DN25-400(1"-16") |
| PN15,25,42Mpa(ANSI 900,1500,2500LB) |
| ASME B16.104 Ⅴ(standard type metal seat) |
| flange type butt welding type |
| -30CC° ～ 260CC°(balanced seal ring structure) -196CC° ～ 550CC°(metal seal ring structure) |
| pneumatic diaphragm actuator pneumatic piston actuator electric actuator |
