zrlp type intelligent electric control valve -尊龙登录

products description:
this kind of the electric control valve consists of two parts---rqm series or siemens2sb35 series electric actuator and control valve. the electric rotating machinery makes the worm gear move, and then the worm gear makes the worm wheel move. at last the worm makes the output axis move by using the clutch to produce the axial thrust. the valve body is of compact structure. the fluid flow passage is s-type. the depressurization loss is low. the flow rate is large. the measuring range is wide. the accuracy of the flow curve is high. it accords with iec534-1-1976 standard. the guide area of the core of the valve is wide. the vibration resistance is good. the leakage of the valve seat meets anst b16.106. the valve is widely used in chemical, petroleum, metallurgy, power plants and other industrial sectors.
   the actuator is the drive device, and its drive force is the electric power. the valve is the regulating device. it contacts directly with the medium to adjust its flow rate. 
   zdlp single-seat valve adopts a sealing face. so the leakage rate is small. but the unbalanced push power, acted on the valve rod, is strong. it is used in the working condition of minor pressure differential. zdlm cage valve adopts balanced valve plug. the unbalanced push power, acted on the valve rod, is weak. so it is allowed to be used in the working condition of large pressure differential. compared with the single-seat control valve, the valve plug of the cage valve has better stability. and it is not easy to vibrate. but the leakage rate is larger. this king of the valve is widely used in chemical, petroleum, metallurgy, power plants and other industrial sectors.

main technical parameters
nominal pressure:1.6, 2.5, 4.0, 6.4, 10.0mpa(16、25、40、64、100kg/cm2)
body material: cast iron, cast steel, cast stainless steel
inherent flow characteristic：straight line, equal percent
mode of action: power open type, power off type
temperature range: -20~200℃, -40~250℃，-40~450℃,
input signal: 4~20ma(d.c)；1vdc~5vdc; 2ma~10ma；0.5vdc~2.5vdc；24vdc impulse or level signal.
supply voltage: 380vac 50hz or 220vac 50hz
intrinsic error: ≤1％
dead zone: 0.1％~9.9％
stroke control repeatability error：≤±1％
the input or output passage adopts optoelectronic isolator
allow leakage: zrljp accords with gb4213 level four; zrlm accords with gb4213 level three.
environment temperature: electric valve -20~+55℃

environment humidity: electric valve ≤95％
environment gas: non-corrosiveness gas.