Application areas: automotive thermal management system; main purpose: air conditioning controller (ECU) by sending pulse signals to the coil, drive the rotor parts of the positive and negative rotation, through the transmission of the screw and nut, the rotor parts of the rotary movement into the valve needle along the axial linear movement, change the valve needle opening, so as to adjust the flow area of the valve port, regulating the flow of refrigerant.

Technical parameters:

1、Applicable medium ： R134a / R1234yf;

2、Rated capacity: 0.7 Ton to 5Ton;

3、Ambient temperature: -40°C to 120 °C;

4、Operating voltage: 12V/24V;

5、Maximum working differential pressure: >2.5 MPa@9V;

6, external leakage performance < 1.5 g/y@2.0MPa;

7, internal leakage performance: < 300 mL/min (@ 1.0 MPa AP air)

8、Communication mode: pulse control;

9、Operating mode: unipolar/bipolar;

10, connector form: lead type / plug-in type;

11, stepper motor poles: 20 poles / 24 poles;

12、Protection level: IP6K9K.