instructions
ZAJW electric butterfly valve is a rotary control valve, which is the execution unit in the electric unit combination instrument. There are two types of valve body structures: soft sealed valve seats and all metal valve seats, which are used for normal temperature (-40~180 ℃) and high temperature (-60~450 ℃) applications, respectively. Used for continuous adjustment and intermittent adjustment respectively. There are two types of actuators: mechanical and electronic. Both can accept 0-10mA DC, 4-2010mA. DC signal is used to control valve opening and closing. The difference is that the latter is an integrated design, which means that the servo amplifier is directly installed inside the actuator, enabling control functions from simple to complex. (Regarding the execution mechanism, please refer to the relevant technical materials for details). This series of products has good sealing performance and a large rated flow coefficient. Widely used in production sectors such as petroleum, chemical, pharmaceutical, metallurgical, textile, papermaking, and wastewater treatment. The nominal pressures of this series of products are 1.6, 4.0, and 6.4 Mpa The aperture ranges from 25 to 200mm, and the input signal has a range of 0-10mA DC, 4-2010mA.DC1-5V.DC, etc. The allowable leakage levels are IV and VI. The temperature range for use is -60 to 450 ℃.
Product Features
ZAJW electric butterfly valve, using DKJ electric actuator, equipped with DFD electric operator and ZPE servo amplifier, can achieve disturbance free switching between automatic and manual control systems.
ZAJW electric butterfly valve can only use STR, PSQ or 361RSB electronic actuators.
The actuator is equipped with a position transmitter with constant current output characteristics, and the output signal corresponds to the input signal.
Can withstand frequent start stop.
The motor adopts a sealed structure and can be used in water splashing situations, equivalent to IP67.
The ability to switch between electric opening and electric closing is strong, and users can achieve it on site.
◇ It can achieve segmented operation, that is, the input signal can be 4-12, 12-20 mA. DC.
The valve core and valve seat have a shear effect, making them particularly suitable for media containing fibers or particles.
Main component materials
Valve body: HT200、ZG230-450、ZG1Cr18Ni9Ti、ZG1Cr18Ni12MO2Ti
Valve seat: PTFE, reinforced PTFE 1Cr18Ni9T
Ball core, adjustment pad: 1Cr18Ni9T OCr18Ni12MO2T
Packing: Polytetrafluoroethylene
technical parameter

Main performance parameters and technical indicators

Note: The general configuration of the actuator is only an example, and the exact configuration depends on the pressure difference and signal range used.

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