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                    • Pneumatic
                    • Pneumatic Film Sleeve Regulating Valve

                      Product model: CV3000
                      Valve body material: WCB, 304, 316, 316L
                      Material of spool: 304, 316 + STL PTFE
                      Seat Material: 304, 316 + STL; PTFE
                      Connection mode: flange, thread, welding
                      Seat type: single seat, double seat, sleeve
                      Cover Type: Standard Type, Low Temperature Type, Heat Dissipation Type, Bellows Sealing Type
                      Pneumatic actuator: multi-spring thin film actuator with air-opening and air-closing
                      Accessories: Electrical positioner, air filter pressure relief valve, handwheel, reserve valve

                      Product overview

                      Pneumatic film sleeve control valve adopts sleeve-oriented, pressure-balanced double sealing surface and single sealing surface structure. It is a force-balanced control valve with compact body structure and S-streamlined fluid passage. It has the advantages of small pressure drop, large flow, wide adjustable range and high accuracy of flow characteristics. The control valve is equipped with multi-spring film actuator, which has small structure and large output force. It is more suitable for use under fluid control conditions requiring good dynamic stability, low noise, cavitation/flash, high and low temperature and high pressure difference.

                      Standard technical parameters

                      Valve body type: single seat, double seat, sleeve pneumatic film sleeve control valve

                      Nominal Path: DN20-DN200

                      Nominal Pressure: ANSI150, 300, 600LB JIS10, 16, 20, 30, 40K PN1.6, 2.5, 4.0, 6.4MPa

                      Connection mode: flange: FF, RF, RJ and LG

                      Flange standard: ANSI B16.5, JIS B2201 JB/T79.1 PN1.6MPa, JB/T79.2

                      Thread: DIN, NPT, RC, BSP, G, etc.

                      Welding: GB12224-89

                      Sealing surface form: PN16 convex surface, PN40, PN63, PN100 concave surface

                      Material: WCB, 304, 316, 316L

                      Upper cover: Standard type (-20 ~200 ~C) low temperature type (-60 ~196 ~C) heat dissipation type (-40 ~450 ~C)

                      Bellows sealing type

                      Cover Form: Plate Form

                      Filler: V-type fluorotetrafluoroethylene, flexible graphite

                      Valve components

                      Core Form: Pressure Balance Form

                      Core seat: two-seat plunger type spool, metal seal, equal percentage characteristic, linear characteristic (LC)

                      Flow Characteristics: Equal Percentage, Linearity, Quick Opening

                      Executing agency

                      Form: Multi-spring membrane actuator

                      Form of action: positive and negative

                      Diaphragm Material: Polyester Fabric Reinforced by NBR Clip

                      Spring range: 20-100KPa, 40-200KPa, 80-240KPa.

                      Supply pressure: 0.14, 0.16, 0.28, 0.40 MPa

                      Function form

                      Air-closed FO (Positive Acting Actuator) When the air source fails, the actuator spring opens the valve.

                      Air-Open FC (Reaction Actuator) When the air source fails, the actuator spring closes the valve.

                      Annex (Configuration as required)

                      Electrical positioner, air filter pressure relief valve, handwheel mechanism, limit switch, solenoid valve, reserve valve and others

                      Product performance

                      Rated KV: Reference Table

                      Flow characteristics: linear, equal percentage, fast opening

                      Adjustable range: 50:1

                      Leakage Class: Metal Seal: Less than 0.01 (ANSI B16.104-1976IV)

                      Soft seal: less than 0.00001%

                      Backlash: Less than 1% of total travel (with locator)

                      Less than 3%-5% of the total trip (without locator)

                      Basic error: less than (+1%) of the whole journey (with locator)

                      Less than +5% of the total stroke (without locator)