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April  29 , 2024  Monday
Home> actuator >> pneumatic actuator accessories >> 8120 electric-pneumatic valve positioner
  • Introduction
  • Specifications
8100A electric-pneumatic valve positioner is supporting instrument of pneumatic adjusting valve, receive 4~20mA DC signal and then output some air pressure signal, control adjusting valve, feedback system make travel and signal do proportional change, then ensure the correct position of valve.
Electric-pneumatic valve positioner according to electrical safety principle, according to GB3836 standard, designed to intrinsic safety (explosion-proof sign Exia II CT6) and (Flameproof sign Exd II BT4) two types
1、  The Product Standards Code: Q/YXBM931
2、  Main technology parameters
a) input signal: :4~20mA.DC;   Split Signal: 4~12,12~20mA.DC
b)  air supply: 0.14~0.6MPa
c)  air consumption: ≤450L/h(standard state and air pressure is 0.14MPa)
d) resistance: 250±25Ω
e)   basic error: ≤±1%(lever);≤±2.5%(cam)
f) hysteresis: ≤1%  (lever);≤2.5%  (cam)
g)  dead band: ≤0.4 (lever)
h)  air interface: M10×1
i)    electrical wiring interface: M20×1.5、NPT1/2
j) travel range of actuator:
   straight: 10~60㎜(6㎜、100㎜ indicate when order);
   angle:  0~90°
k)    isolated resistance: ≥20MΩ
l)      protecting type: general
explosion-proof: Exd II BT4(explosion-proof);Exia II CT6(Intrinsically Safety)
m)  protective housing level: IP55
n)    environment temperature:  -25℃~+55℃
o) relative humidity: 5%~100%
p)dimension: 293×93×188
q)weight: 2.1㎏