Description
Pneumatic Small-Port Single-Seated Control Valve
HLS 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.
