ZDLQ, ZDLX three-way regulating valves are composed of electric actuator and three-way valve regulating mechanism. There is a servo system in the electric actuator. It does not need a servo amplifier. It can be controlled by input signal and power supply. The connection is simple. The regulating mechanism has two modes of action: confluence and diversion. In some cases, it can replace two two-way valves and one three-way nozzle and is widely used. Two phase adjustment and simple ratio adjustment are often used in heat exchangers.
Specification model


Main technical parameters
Main technical parameters of adjusting mechanism


Main technical parameters of electric actuator

Note: detailed technical parameters refer to their product selection information.
Performance index


Note: Standard V type tetrafluoroethylene packing is adopted.
Electric actuator configuration and allowable pressure difference Delta P

Note: Delta P is determined according to the closing of the upper spool or the lower spool.
Overall Dimensions


Shape size



Note: the valve is PN6.4MPa ordinary upper cover