HLS Single seated control valve

HLS Single seated control valve

Overview of  HLS Single seated control valve

HLS Single seated control valve has compact structure and s-streamline channel, so that it has small pressure drop loss, large flow, wide adjustable range and high accuracy of flow characteristics, which conforms to iec534 standard. The leakage of regulating valve shall comply with ANSI b16.104 standard. The regulating valve is equipped with multi spring membrane actuator, which has compact structure and large output force, and the product conforms to GB / t4213-92. HLS single seat regulating valve is the final control element in the field of industrial automation process control, which changes the process parameters such as medium flow, pressure, temperature and liquid level with the help of power operation by receiving the control signal output by the regulating control unit.

Working Principle of  HLS Single seated control valve

The regulating valve is composed of electric actuator or pneumatic actuator and regulating valve. The regulating valve is usually divided into straight through single seat regulating valve and straight through double seat regulating valve. The latter has the characteristics of large flow capacity, small imbalance and stable operation, so it is usually especially suitable for occasions with large flow, high pressure drop and less leakage .The regulating valve is used to regulate the flow, pressure and liquid level of the medium. The opening of the valve is automatically controlled according to the signal of the regulating part, so as to achieve the regulation of medium flow, pressure  and liquid level. The regulating valve is divided into electric regulating valve, pneumatic regulating valve and hydraulic regulating valve.

Main tech data of HLS Single seated control valve

Type: straight through single seat cast ball valve

Nominal diameter: 20, 25mm

Nominal pressure: ANSI 125, 150, 300, 600

JIS 10、16、20、30、40K

PN1.6、4.0、6.4MPa

Connection type: flange connection: FF, RF, RJ, LG, groove type, embedded type

Flange standards: JIS b2201-1984, ANSI b16.5-1981, GB / t9112 ~ 9124-2000, etc

Welded connection: fillet weld SW

Materials: cast steel (zg230-450), cast stainless steel (zg1cr18ni9ti, zg1cr18ni12mo2ti, zg00cr18ni12mo2ti), titanium, etc

Upper valve cover: normal temperature type (P): - 17 ~ + 230 ℃

Elongation type I (E1): - 45 ～ - 17 ℃ + 230 ～ + 566 ℃

Elongation type II (E2I): - 100 ~ - 45 ℃

Elongation type II (e2w): - 196 ~ - 100 ℃

Note: the working temperature shall not exceed the allowable range of various materials.

Gland type: bolt compression type

Packing: V-type PTFE packing, impregnated PTFE asbestos packing, asbestos woven packing and graphite packing.

Note: Any special design or question of HLS Single seated control valve , kindly contact the manufacturer for more details.