HCB cage type two-seat regulating valve is a pressure balanced regulating valve. Its body fluid passage is S-streamlined. It also has a guide wing to improve the smooth flow of fluid around the sleeve. Its advantages are small pressure drop loss, large flow rate, wide adjustable range, high accuracy of flow characteristic curve, good dynamic stability, low noise and cavitation corrosion. Small. The control valve is equipped with multi-spring film actuator, which has compact structure and large output force. Suitable for controlling high pressure differential fluid at high temperature and low temperature.

Main technical parameters and performance

Body Type Direct-through Double Seat Cast Spherical Valve

Nominal diameter 40-200 mm

Nominal Pressure ANSI 125, 150, 300, 600

JIS 10, 16, 20, 30, 40K PN 1.6, 4.0, 6.4MPa

Connection type flange: FF, RF, RJ, LG

According to ANSI B16.5, JIS B2201JB/T79.1 PN1.6MPa JB/T79.2

Concave and Convex Welding: Embedded Welding SW (40-50mm)

Butt welding BW (65-200 mm)

Material HT200 ZG25

ZG1Cr18Ni9 ZG0Cr17Ni12Mo2 1.25Cr0.5Mo 5.0Cr0.5Mo SCPH21 SCPH61 Ti

Normal Temperature Type of Upper Cover (P): - 17 ~+230 Temperature

Elongation Type I (E1): - 45 ~ - 17 +230 ~+566.

Elongation Type II (E2): Integral Type (E2I): - 100 ~45 Temperature

Welding type (EW): - 196 ~100 ~C

Cover type bolt compression type

Filler V-type PTFE filler, impregnated PTFE asbestos filler, asbestos braided filler

In-valve assembly

Spool type pressure balancing spool

Flow Characteristic High Precision Flow Characteristic, Reference to Figure 1

Flow characteristics of high capacity sleeve, refer to Fig. 2

Reference 3 for working temperature and pressure difference of working range soft seat;

Reference 4 for working temperature and pressure difference of Stalley surfacing

Note: Integral sleeve and separate sleeve shall be determined according to nominal diameter, material and working temperature.

Material 17-4PH, 0Cr17Ni12Mo2 Stalley surfacing

Executive Body

Type HA Multi-spring Membrane Actuator

Ethylene-propylene rubber with nylon as diaphragm material

Spring range 0.02-0.10, 0.08-0.24 MPa

Supply pressure 0.14, 0.16, 0.28, 0.40 MPa

Gas source joint Rc 1/4

Ambient temperature - 30 ~+70 C

Note: VA5 or VA6 actuators are also available for this valve.

Valve Action Type Air-Open or Air-Close Type

Accessory positioner, handwheel mechanism, pneumatic valve position conveyor

Performance

Leakage Metal Seat: Standard ANSI B 16.104 II, less than 0.5% of rated Cv

PTFE Seat: Standard ANSI B 16.104VI, less than 10-7 rated Cv

Backlash 3% (without locator)

1% (with locator)

Linear + 5% (without locator)

Positive 1% (with locator)

Note: Standard V-type PTFE filler is used.

Adjustable range 50:1