Description

Pneumatic Small-Port Single-Seated Control Valve

Pneumatic Small-Port Single-Seated Control Valve are designed for heavy duty service.
The compact valve body, having and S-shape flow passage that features low pressure loss, allows a large flow capacity, rangeability and high accuracy flow characteristics. Furnished by multi-spring diaphragm actuator, the control valve is compact in structure and big in output force.

DN15-DN40-WCB-Customiz
The valve plugs are available in a wide range of Cv values. The flow shutoff performance complies with the simplest mechanisms, utilizes a compact yet powerful diaphragm actuator loaded with multiple springs.

The model HLC Control Valves are widely applicable for reliable control of small flows in high- or low temperature, high differential pressure process lines.

SPECIFICATIONS

Body type

Straight-through, cast globe valve

Nominal size

3/4’’, 1’’, 1-1/4’’, 1-1/2’’, 2’’, 2-1/2’’, 3’’

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

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