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Electric low temperature control valve

3 Jul 2018 09:22:00 source:aen-valve.com browse:2823
  • Introduction
  • Technical Parameters

Electric low temperature control valve product description

ZRLP/M-DW electric low temperature control valve is a high-precision Electric Actuator and ultra-low temperature control valve body. The actuator contains a feeding function, accepts a standard signal of 4-20mAor1-5V.DC, converts the current signal into a corresponding straight line displacement, automatically controls the opening of the regulating valve, and reaches the pressure of the fluid in the pipeline. Flow, temperature, level and other process parameters are continuously adjusted. Electric low temperature control valve is suitable for working under 0~-250°C. It is composed of electric actuator and valve body with long neck pipe. The role of long neck pipe is to make the stem seal close to normal temperature and reduce the outside world. Thermal energy is introduced. To reduce transmission, long-necked thin-walled structures are used.

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
Rated route(mm) 16 25 40 60 100
Valve cover type Low temperature type-10~-196℃、Super Low temperature type-196~-250℃
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 line type
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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