DN50 PN25 Diaphragm Pneumatic Globe Control Valve

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DN50 PN25 Diaphragm Pneumatic Globe Control Valve

Model HCB Pressure Balanced Cage Type Control Valves are designed for heavy duty services. The compact valve body, having a S-shape flow passage that features low pressure loss and a stabilizer that regulates turbulent flow around the cage, allows a large flow capacity, rangeability and high accuracy flow characteristics.
The valve plug is structured in a pressure-balanced type that permits flow control of a high differential pressure with a small actuating force. The actuator integrated with simplest mechanisms utilizes a compact yet powerful diaphragm actuator loaded with multiple springs. The model HCB valves are widely applicable for reliable control of high or low temperature, high pressure or high differential pressure process lines where dynamic stability, low noise, and cavitation/flashing resistance are required.

Additional information

Size:

3/4'' ~ 16''

ANSI Class:

150 ~ 600LB

Body Materials:

A216 WCB, A216WC6, A352 LCB, A351 CF8, A351 CF8M, A351 CF3M, A351 CF3

Temperature Range:

-196 ~ +450°C

Description

HCB Series Balanced Cage Single-Seat Control Valve

The HCB series balanced cage single-seat control valve includes both straight-through and angle types. These valves use high-performance sealing rings on the valve plug or cage. The valve body is compactly structured and equipped with a flow-directing vane designed to enhance the fluid balance around the cage, resulting in minimal pressure drop, high flow capacity, wide adjustability, and precise flow characteristics. This design conforms to the IEC 60534-2-1-2011 standard. The control valve offers excellent dynamic stability, low noise, and minimal cavitation corrosion. It meets the ANSI FCI 70-2-2013 standard for leakage. The valve is compatible with either a multi-spring diaphragm or a cylinder actuator, which provides a compact structure and high output force. The HCB sleeve control valve is suitable for managing various high-temperature and low-temperature high-pressure fluids and can be customized for special requirements.

SPECIFICATIONS

Body type

Straight-through, cast globe valve

Nominal size

3/4’’, 1’’, 1-1/4’’, 1-1/2’’, 2’’, 2-1/2’’, 3’’, 4’’, 5’’, 6’’, 8’’, 10’’, 12’’, 14’’, 16’’

Pressure rating

• ANSI Class 125, 150, 300, 600
• JIS 10K, 16K, 20K, 30K, 40K
• PN1.6, 4.0, 6.4, 10.0 Mpa

End connection

• Flanged End: FF, RF, RJ, LG
According to ANSI B16.5, JIS B2201, JB/T79.1, JB/T79.2
• Welded End: SW, BW
• Threaded End: Threaded, RC, NPT

Material

A216 WCB, A216WC6, A352 LCB, A351 CF8, A351, CF8M, A351 CF3M, A351 CF3

Bonnet type

• Plain bonnet (-17 to 230°C)
• Extension bonnet Type1(-45 to -17°C and 230 to 566°C)
• Extension bonnet Type 2 Cryogenic
Integral cast type (-100 to -45°C)
Welded type (-196 to -100°C)
• Bellows type

Actuator type

Single-acting diaphragm actuator, Spring type piston actuator, Double acting piston actuator

Diaphragm material

Cloth embedded nylon and ethylene propylene rubber

Spring range

• 20 to 100 kPa(0.2 to 1.0 kgf/cm2)
• 40 to 200 kPa(0.4 to 2.0 kgf/cm2)
• 80 to 240 kPa(0.8 to 2.4 kgf/cm2)

Supply pressure

0.14, 0.16, 0.28, 0.4, 0.5 Mpa

Air connection

Rc1/4 or 1/4 NPT internal thread

Ambient temperature

-20 to 70℃

Valve action

• FO: Air to close(Direct action actuator is combined.)
• FC: Air to open(Reverse action actuator is combined.)

Optional accessories

• P/P or I/P Positioner
• Air filter regulator
• Top-mounted or Side-mounted Handwheel
• Limit switch
• Solenoid valve
• Motion transmitter
• Booster relay
• Lock-up valve
• Air lock relay
• Others

Performance

Rated Cv value

cv value
cv value

Flow characteristics
• Equal percentage
• Linear

Leakage

• Metal Seat
According to ANSI B16.104 Class II, leakage less than 0.5% of maximum valve capacity.
• Soft Seat
According to ANSI B16.104 Class VI, leakage less than 0.00001% of maximum valve capacity.

Inherent rangeability

• 50:1 (Optional 75:1 for full port size)

Hysteresis error

• Without positioner: Within 3% F.S.
• With positioner: Within 1% F.S.

Linearity

Without positioner: Within ±5% F.S.
With positioner: Within ±1% F.S.

flow characteristics of control valve pressure
flow characteristics of control valve pressure

 

 

 

Additional information

Size:

3/4'' ~ 16''

ANSI Class:

150 ~ 600LB

Body Materials:

A216 WCB, A216WC6, A352 LCB, A351 CF8, A351 CF8M, A351 CF3M, A351 CF3

Temperature Range:

-196 ~ +450°C

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