HCBCage style double seatpneumatic control valveIt is a pressure balanced regulating valve, and the fluid channel of the valve body isSStreamlined and equipped with a guiding wing to improve the smooth flow of fluid around the sleeve, the advantages are low pressure drop loss, large flow rate, wide adjustable range, high accuracy of flow characteristic curve, good dynamic stability, low noise, and minimal cavitation corrosion. The regulating valve is equipped with a multi spring thin film actuator, which has a compact structure and high output force. Suitable for controlling high temperature and low temperature high-pressure fluids.

pneumatic control valveMain technical parameters and performance
Valve bodyType: Straight through double seat cast spherical valve
Nominal Diameter40～200mm
nominal pressureANSI 125、150、300、600
JIS 10、16、20、30、40K PN 1.6、4.0、6.4MPa
Connection type: flange type:FF、RF、RJ、LG
According to the standardANSI B16.5，JIS B2201JB/T79.1 PN1.6MPa JB/T79.2
Concave convex surfaceWelding type: embedded weldingSW（40～50mm）
butt weldingBW（65～200mm）
Material ScienceHT200 ZG25
ZG1Cr18Ni9 ZG0Cr17Ni12Mo2 1.25Cr0.5Mo 5.0Cr0.5Mo SCPH21 SCPH61 Ti
Upper valve cover room temperature type（P）：-17～+230℃
Extension Type I（E1）：-45～-17℃+230～+566℃
Elongation type II（E2）: Integrated type（E2I）：-100～-45℃
Welding type（E2W）：-196～-100℃
Cap type bolt compression type
Packing materialVType PTFE packing, impregnated PTFE asbestos packing, asbestos braided packing
Valve components
Valve core type: pressure balanced valve core
High precision flow characteristics, refer to the diagram1
High capacity sleeve flow characteristics, refer to the diagram2
Reference diagram for working temperature and pressure difference of soft valve seat within the scope of work3;
Reference diagram for working temperature and pressure difference of Steyr welding4
Note: The integral and separated sleeves should be determined based on the nominal diameter, material, and operating temperature.
Material Science17-4PH、0Cr17Ni12Mo2Sitailai welding
actuator
TypeHAMulti spring thin film actuator
Diaphragm material: Ethylene propylene rubber with nylon clip

Spring range0.02～0.10，0.08～0.24MPa
air supply pressure0.14，0.16，0.28，0.40MPa
Air source connectorRc 1/4
ambient temperature-30～+70℃
Note: This valve can also be used withVA5perhapsVA6Execution agency.
Valve action type: gas open or gas closed
enclosurePositioner, handwheel mechanism, pneumatic valve position transmitter
Performance

Leakage rate metal valve seat: compliant with standardsANSI B 16.104Level II, less than ratedCvof0.5%
PTFE valve seat: compliant with standardsANSI B 16.104Grade VI, less than ratedCvof10-7
Return difference3%(without locator)
1%(with locator)
Linear ±5%(without locator)
±1%(with locator)
Note: Adopting standardVType PTFE packing
Adjustable range50∶1