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Electric single seat control valve

2 Jul 2018 12:16:00 source:aen-valve.com browse:12400
  • Introduction
  • Technical Parameters

Electric single seat control valve

Composed of valve body, valve seat, valve stem, guide sleeve, valve cover, seal packing and electric actuator. Electric single-seat regulating valve fluid channel into S-type, low pressure drop, flow, flow characteristics, high precision, adjustable range. It is one of the series of intelligent electric regulating valves. It is a high-performance electric single-seat regulating valve, suitable for fluids with different pressures and temperatures and occasions requiring high leakage. The electric actuator is an electronic integrated structure with a servo amplifier. The input control signal (4-20mADC or 1-5VDC) and the power supply can control the valve opening to reach the pressure, flow, level, temperature and other parameters. adjust. Electric single-seat control valve has the characteristics of sensitive action, simple connection, large flow, small size and high adjustment accuracy. Electric single seat regulator valve is widely used in electric power, metallurgy, petroleum, chemical, pharmaceutical, boiler, light industry and other industries in the automatic control system.

Nominal diameter(DN) 20 25 32 40 50 65 80 100 125 150 200 250 300
Valve seat diameter(dn) 20 25 32 40 50 65 80 100 125 150 200 250 300
Rated flow
coefficient(KV)
straight line 6.9 11 17.6 27.5 44 69 110 176 275 440 630 875 1250
percentage 6.3 10 16 25 40 63 100 160 250 360 570 850 1180
Allowable pressure
difference(MPa)
3.2 3.0 2.0 1.8 1.5 1.4 1.0 0.7 0.6 0.5 0.3 0.2 0.1
Nominal pressure(MPa) 1.6、2.5、4.0、6.4、10.0
Rated route(mm) 16 25 40 60 100
Valve cover type Standard type(-17~+250℃)、High temperature type(+250~+450℃)、Low temperature type(-40~-196℃)、Bellows sealed type(-40~+350℃)
Capping type Bolt compression type
Seal packing V type PTFE packing、V type flexible graphite filler
Valve core type Single seat plunger valve core
Flow characteristics Linearity、percentage
Configure Actuator series 381L Series Electric Actuator、PSL series electric actuator
Actuator parameters voltage:220V/50Hz、input signal:4-20mAor1-5V·DC、output signal:4-20mA·DC
Protection level:Equivalent toIP55、Separate explosion levels:ExdⅡBT4(ExdⅡBT6Special custom)、Hand operation function:handle
environment temperature:-25~+70℃、environment humidity:≤95%
item standard
tolerance% with3810L±2.5; withPSL±1.0
difference% with381L ±2.0; withPSL±1.0
dead zone% 1.0
tolerance
between start
point and end
point%
Electric open start point±2.5 end point±2.5
start point±2.5 end point±2.5
Electric close start point ±2.5
end point ±2.5
Rated route tolerance % ≤2.5
Leakage L/h 0.01%×Valve rated capacity
Adjustable range R 50:1
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