Model HLC Pneumatic Small-Port Cage-Guided Type Single-Seated Control Valves are designed for high differential pressure Service where fluid normal differential pressure exceeds 2940 kPa {30 kgf/cm2}or for heavy-duty service where flashing/cavitation may occur. Further, they are ideal for preventing erosion from the valve body, because their guides are sturdy and the valve body is protected by a cage. The com- pact valve body, having an S-shaped flow passage that features low pressure loss, allows a large flow capacity and rangeability.
The valve plugs are available in a wide range of Cv values. The flow shutoff performance complies with 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"
Pressure rating
ANSI Class 125, 150, 300, 600
JIS 10K, 16K, 20K, 30K, 40K
PN1.6, 4.0, 6.4 Mpa
End connection
Flanged End: FF, RF, RJ, LG
According to ANSI B16.5, JIS B2201, JB/T79.1
PN1.6MPa, JB/T79.2
Welded End: SW, BW
Threaded End: Rc
Material
A216 WCB, A216WC6, A352 LCB, A351 CF8, A351
CF8M, A351 CF3M, A351 CF3(see table3-1,3-2)
Bonnet
Plain bonnet (-17 to 230℃)
Extension bonnet Type1(-45 to -17℃ and 230 to 566℃)
Extension bonnet Type 2 Cryogenic
Integral cast type (-100 to -45℃)
Welded type (-196 to -100℃)
Bellows type
Gland type
Bolted Gland
Packing
V shaped PTFE, PTFE, Flexible graphite
Gasket material
Stainless steel(SUS304, SUS316, SUS316L), copper,
aluminum
Trim
Valve plug
Single-seated, Contoured type plug
Actuator
Type
Single-acting diaphragm 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 Mpa
Air connection
Rc1/4 or 1/4NPT internal thread