Pneumatic Cage Sleeve Control Valve is Multi-stage cage-type sleeve regulating valve spool or axial flow labyrinth spool and pneumatic multi-spring diaphragm actuator, multi-stage decompression, fully control the flow rate of the medium in the valve, greatly reduce the noise generated by gas or steam in the valve. The suitability of the pressure-reduction stages for liquid-service cavitation control must be confirmed against the actual flow range, inlet and outlet pressures, temperature and selected trim. Gas or steam noise attenuation requires a separate assessment.
Pneumatic axial flow labyrinth control valve
Actuator positioner can also be matched as required
Confirm the selected trim and pneumatic operating package against the actual control duty.
Size: 3/4″-20″
Pressure class: PN160-420, Class150-2500
Body form: straight-through forged body
Frequently Asked Questions
Will the cage or labyrinth trim eliminate cavitation and noise in my line?
Do not treat the trim description as a guarantee. Provide the fluid, flow range, pressure conditions and temperature and request a review of the selected trim and any required noise or cavitation assessment.
Which of the cage and labyrinth arrangements will be quoted?
Identify the required control duty and request the exact trim design on the datasheet and drawing. The page discusses alternatives, so the selected internal arrangement should be explicitly confirmed.
What should I provide for the pneumatic actuator and positioner?
Send the available air supply, required command and feedback signals and failure response. Ask for confirmation of the complete operating and control package for the selected valve duty.