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Electric explosion-proof control valve

2 Jul 2018 15:22:00 source:aen-valve.com browse:6867
  • Introduction
  • Technical Parameters

Electric explosion-proof regulating valve

is suitable for most applications in process control technology. The electric explosion-proof regulating valve is particularly suitable for applications with certain requirements. Due to its wide adjustment range, different curved surfaces can be selected. Spool, and its highly sealed characteristics in off state. The electric explosion-proof control valve belongs to the top-oriented control valve and is equipped with a 3810 series electronic Electric Actuator. There is a servo amplifier in the electric actuator. No servo amplifier is required. Input control signals (4 to 20mADCor1 to 5VDC) and single-phase power supply are available. Can control the operation, to achieve the pressure, flow, temperature, liquid level and other parameters of the adjustment. Electric explosion-proof control valve has the characteristics of small size, light weight, simple connection, high adjustment accuracy, electric explosion-proof control valve, explosion-proof electric valve, widely used in electric power, petroleum, chemical industry, metallurgy, environmental protection, light industry, teaching and Scientific equipment and other industries in the industrial process 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)

single seat 6.9 11 17.6 27.5 44 69 110 176 275 440 630 875 1250
sleeve 6.3 10 16 25 40 63 100 155 250 370 580 900 1300

Allowable

pressure

difference(MPa)

single seat 3.8 3.2 3.0 2.0 1.8 1.5 1.4 1.0 0.7 0.6 0.5 0.3 0.1
sleeve 6.4 6.4 5.2 5.2 4.6 4.6 3.7 3.7 3.5 3.1 3.1 2.6 2.2
Nominal pressure(MPa) 1.6、2.5、4.0、6.4、10.0
Rated route(mm) 16 25 40 60 100
Valve cover type High temperature type(+250~+450℃)
Capping type Bolt compression type
Seal packing V type PTFE packing、V type flexible graphite filler
Valve core type Single seat, sleeve type
Flow characteristics percentage、straight linetype
Configure Actuator series 3810series、PSL series etc. Electric Actuator(Customers can also specify brands)
Actuator parameters voltage:220V、input signal:4-20mAor1-5V·DC、output signal:4-20mA·DC

Protection level:Equivalent toIP65、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 30:1
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