Pneumatic Double Seat Pressure Control Valve (GAZJHN)

HCB Cage Type Double Seat Pneumatic Flow Regulating Valve Characteristics: 
         This product is composed of the pneumatic multi-springs, pneumatic actuator and the low flow resistance sleeve. This valve uses the balanced valve core, the unbalanced force is small, the permission pressure differential is big, and operation is steady. Compared with the ordinary single and double seat-regulating valve, it has low noise, simple structure and convenient assembling and dismantling characteristics.
         Its valve shape is small, the body is light, the performance is good, and the capacity is big. So it's the new type general regulating valve product. It is suitable for the common fluid medium and techniques condition industrial control system.

HCB Cage Type Double Seat Pneumatic Flow Regulating Valve
HCB Cage Type Double Seat Pneumatic Control Valve is Pressure Balanced Cage Type Control Valve. The flow port is S pattern, and the flow-guiding part around the cage can also make the fluid flow smoothly. Therefore, the pressure drop of such regulating valve is very low, the flow capacity is big, and the noise is low. Valve Disc adopted Pressure Balanced Cage Type, the pneumatic actuator is multi-spring diaphragm type, the Structure is impact, and the output torque is big.

HCB Cage Type Double Seat Pneumatic Flow Regulating Valve
Standard technical specification
Valve Body
Type:  Straight Through Single Seat Cast Steel Globe Valve
Size: DN40-200
Pressure: PN16~PN64, Class 150LB ~ Class 600LB, JIS 5K-40K
Connection: RF(Standard), Threaded, Welded
Flange Facing:  Raised Face
Face to Face dimension: GB12221-89
Material: WCB, 304,316
Bonnet Type: Gland
Packing:  V tupe PTFE,  Flexible Graphite
Gasket: Plain Type, PTFE, SS+Graphite
Upper Gland Type:
Normal Gland Bonnet: -17~230 Deg C
Extended Bonnet: -45~-17 Deg C,  230~ 566 Deg C
Extended Bonnet: Integrated Bonnet :-100~-45 Deg C,  Welded Bonnet: -196~-100 Deg C
 
HCB Cage Type Double Seat Pneumatic Flow Regulating Valve
Actuator:
Type: HA Multi-Spring Diaphragm Type Pneumatic Actuator
Spring Range: 0.02~0.10, 0.08~0.24MPA
Air Supply Pressure: 0.14, 0.16, 0.28, 0.40 MPa
Air Connection: Rc1/4
Ambient Temperature: -30~70 Deg C
Valve Action Type: Air to Open or Air to Close
 
HCB Cage Type Double Seat Pneumatic Flow Regulating Valve
Performance
Leakage Rate: ANSI B16.104 Class IV  ( < 0.01% Rated Cv)
Return differential: 3% ( Without Positioner),  1% ( With Positioner)
Linear:  ±5% ( Without Positioner),  ±1% ( With Positioner)
Packing: Standard PTFE Packing
Adjustable Range: 50:1

HCB Cage Type Double Seat Pneumatic Flow Regulating Valve Specifications: