The HCB type pneumatic cooling control valve is a pressure-balanced control valve with an S-shaped fluid passage inside the valve. It also features a guide vane to improve the smooth flow of fluid around the sleeve. Advantages include low pressure drop, high flow rate, and a wide adjustable range. It boasts high accuracy in its flow characteristic curve and good dynamic stability. It exhibits low noise, minimal cavitation corrosion, and good dynamic stability, making it suitable for controlling high-pressure differential fluids at various temperatures. It is equipped with an LHA multi-spring diaphragm actuator or an electric actuator, resulting in a compact structure and high output force. The product conforms to GB/T4213-92.

Valve Body

Type: Straight-through double-seat cast ball valve

Nominal Diameter: 20, 25, 40, 50, 65, 80, 100, 150, 200 mm

Nominal Pressure: ANSI 125, 150, 300, 600; JIS 10, 16, 20, 30, 40K

PN1.6, 4.0, 6.4 MPa

Connection Type: Flange connection: FF, RF, RJ, LG, Grooved, Embedded

Flange Standard: JIS B2201-1984, ANSI Standards: B16.5-1981, GB/T9112～9124-2000, etc.

Welding Connection: Embedded Weld (SW)

Materials: Cast steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, ZG00Cr18Ni12Mo2Ti), titanium, etc.

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

Extension Type I (E1): -45～-17℃ +230～+566℃

Extension Type II (E2I): -100～-45℃

Extension Type II (E2W): -196～-100℃

Note: Operating temperature must not exceed the allowable range for each material.

Gland Type: Bolted Type

Packaging: V-type PTFE packing, PTFE-impregnated asbestos packing, asbestos braided packing, graphite packing Valve Internal Components

Valve Core Type: Single-seat sleeve-type plunger valve core

Flow Characteristics: Equal percentage characteristics (%) and linear characteristics (L), refer to the flow characteristic curve

Sleeve Type: Separate sleeve

Materials: Stainless steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti, 17-4PH, 9Cr18, 316L), stainless steel with Stellite alloy overlay, titanium, and corrosion-resistant alloys, etc.

Actuator

Type: LHA multi-spring diaphragm actuator, LVA5 single-spring diaphragm actuator, LVA6 single-acting cylinder piston actuator, LVP double-acting cylinder piston actuator

Diaphragm Material: Ethylene propylene rubber reinforced with nylon cloth, nitrile rubber reinforced with nylon cloth

Spring pressure range: 20～100, 80～240kPa (LHA, LVA5 type), 190～350, 190～400kPa (LVA6 type)

Air supply pressure: 140～400kPa (LHA type), 140～280kPa (LVA5 type)

400～500kPa (LVA6 type), 300～500kPa (LVP type)

Air supply interface: Rc1/4”

Ambient temperature: -30～+70℃

Valve action type: Air-to-close or air-to-open achieved by direct or reverse action actuators

Accessories: Positioner, air filter regulator, position holding valve, limit switch, valve position transmitter, solenoid valve, handwheel mechanism, etc. Performance

Leakage: Metal seat: Less than 0.01% of rated capacity, conforming to ANSI B16.104-1976 Class IV

Soft seat: Less than 10⁻⁷ of rated capacity, conforming to ANSI B16.104-1976 Class IV

Hypert: With positioner: Less than 1% of full stroke

Without positioner: Less than 3% of full stroke (5% for LHA1 type)

Basic error: With positioner: Less than ±1% of full stroke

Without positioner: Less than ±5% of full stroke

Note: Standard V-type PTFE packing is used.

Adjustable range: 50:1 (0.25≤Cv≤14) or 30:1 (CV≤0.16)

Cv value and stroke

High-capacity valve core