Pressure balance regulating valve

Pressure balance regulating valve

CAB1 series pressure balanced parabolic valve core single seat cage type control valve has a compact structure, metal sealing and soft sealing structures, and is equipped with various high-performance composite and metal pressure balance sealing rings, which has excellent sealing performance. The double guide of bushing and sleeve ensures that the valve core can operate stably and reliably under the action of fluid bias force. Because of the fluid pressure balance structure, it only needs a small operating force to achieve stable regulation. Parabolic cylinder valve core structure can ensure wide adjustable range, high accuracy of flow characteristic curve and no jamming. The solid sleeve can improve the internal fluid environment and prevent flash evaporation and cavitation.

Product Description


Product introduction

CAB1 series pressure balanced parabolic valve core single seat cage type control valve has a compact structure, metal sealing and soft sealing structures, and is equipped with various high-performance composite and metal pressure balance sealing rings, which has excellent sealing performance. The double guide of bushing and sleeve ensures that the valve core can operate stably and reliably under the action of fluid bias force. Because of the fluid pressure balance structure, it only needs a small operating force to achieve stable regulation. Parabolic cylinder valve core structure can ensure wide adjustable range, high accuracy of flow characteristic curve and no jamming. The solid sleeve can improve the internal fluid environment and prevent flash evaporation and cavitation.

The CAB pressure balance parabolic valve core single seat cage type control valve has excellent performance, and is suitable for fluid working conditions with large pressure difference, large temperature change and particle impurities.


CAB 系列压力平衡调节阀



technical parameter

Nominal diameter: DN80-400

Nominal pressure: ANSI CL150, 300, 600

DIN PN16、25、40、63、100

JIS 10K、20K、30K、40k

GB PN1.6、2.5、4.0 、6.4、10.0 MPa

Connection mode: flange type ANSI B16.5 RF, RTJ

DIN2543/2544/2545 RF

GB/T9113 RF、FM

Welding type ANSI B16.5

Fillet weld SW

Upper bonnet type: standard type...... - 46 ~ 200 ℃; 200℃~300℃

Heat sink type............ 300 ℃~ 530 ℃

Valve core form: parabolic cylinder valve core

Flow characteristics: metal valve seat:

Equal percentage CV: 0.25 ~ 2925

Linear CV: 0.01 ~ 2925

Soft seat:

Equal percentage CV: 0.25 ~ 2925

Linear CV: 0.1 ~ 2925

Actuator type: DA series multi spring membrane type

Spring range: 50-300Kpa

Air supply pressure: max. 6bar

Air source interface: G1/8 (DA1/DA2), G1/4 (DA3/DA4), G3/4 (DA5)

Ambient temperature: - 20 ℃~+80 ℃

Optional accessories: positioner, filter pressure reducing valve, solenoid valve, limit switch, valve position transmitter, handwheel mechanism, quick exhaust valve, speed control valve, pneumatic retaining valve, etc


Remarkable features:

1) The valve seat can be used on both sides to improve the service life;

2) Small operating force, suitable for high differential pressure working condition;

3) High adjustment accuracy;

4) It can be quickly installed and disassembled without special tools;

5) High cost performance;

6) Sleeves for optimized flow;

7) A variety of materials are available;

8) Maintenance free packing;

9) Wear and corrosion resistant stuffing box.


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