Application range of Danfoss ETS12.5-100-ETS250-400 electronic control valve

ETS series electronic expansion valves are widely used in refrigeration and air-conditioning systems.
Indeed control the flow of refrigerant injected into the evaporator.
The valve piston and linear positioning design are fully balanced to ensure flow
The characteristics of the body in the forward and reverse directions are the same. this
In addition, it also has a two-way cut-off function, just like a solenoid valve
Close tightly.
The bipolar-driven valve design provides precise flow control.
ETS electronic expansion valve is suitable for electronic control of Danfoss and other manufacturers
Program.

Features of Danfoss ETS12.5-100-ETS250-400 electronic control valve

■ Accurate positioning ensures optimal control of refrigerant flow.
■ Suitable for various common refrigerants (such as R410A, R407C, R404A, R134a,
R22).
■ The maximum working pressure of ETS 12.5, ETS 25, ETS 50 and ETS 100 is
45.5 bar (660 psig). Maximum work of ETS 250 and ETS 400
The pressure is 34 bar (493 psig).
■ Dynamic balance achieved in the design of ETS 50 to ETS 400 electronic expansion valves
Not only enables the valve to operate in two-way flow, but also has a two-way shut-off
The function is as tight as a solenoid valve.
■ Waterless welded joints used in ETS 50 and ETS 100 make welding
There is no need to wrap with wet cloth, which is convenient and fast.
■ ETS 50 to ETS 400 electronic expansion valves are equipped with built-in sight glass.
■ Anti-corrosion design inside and outside.
■ Low power consumption.
■ Cables and connectors can be selected as required.
■ EKC 316A, EKC 312 and EKD 316 are commonly used by Danfoss
Controller for driving ETS electronic expansion valve.
■ Provide AST-g manual operator for manual operation of ETS electronic expansion valve
And maintenance.

Danfoss ETS12.5-100-ETS250-400 electronic control valve operation method

The ETS valve is driven by the electronic control of the AST stepper motor. The stepper
The machine is two-phase bipolar, only when the drive generates an electrical pulse to start two groups
When the separated motor stator winding rotates in different directions, the motor will
action.
The rotation direction of the transmission mechanism depends on the phase sequence relationship of the electric pulse, and
It also determines the position of the piston. The motor drives the drive through the transmission mechanism
The rod converts the rotary motion into the linear motion of the valve.
AST motor housing has standard configuration glass sealed M12 connector, same as
It is also compatible with other special cables and plug socket connectors.
The piston of ETS valve is pressure balanced design, which can provide complete consistency
The bidirectional flow performance and roughly the same maximum capacity.
Through the interference shut-off valve, the reference value of the number of steps is always correct.
ETS electronic expansion valve requires a controller to drive operation, the controller
Can be powered by 12V DC voltage (5.5W) or 100 mA RMS chopper current
drive.
It is recommended to use Danfoss EKC 316A, EKC 312 and EKD 316 as
driver.