Electronic expansion valve driver

MVC  and GEC1702 drives represent the most versatile solution for all VPF control requirements, managing valves amde by SANHUA and other manufacturers, such as DANFOSS、SPORLAND,etc..

Electronic expansion valves drivers are the only ones that allow the ideal operation of the evaporator, keeping it full of liquid and refrigerant gas and allowing it to only leave the same superheated gas to avoid damaging the compressor.

The electronic expansion valves, in addition to the maximum use of the evaporator, offer a series of advantages with respect to the thermostatic expansion valves:

They are ideal to work in those cases in which the loads undergo great variations.

Where the condensation pressures undergo great changes?

They save energy.

Electronic expansion valves drivers are driven by a stepper motor controlled by a microprocessor. The stepper motor allows a remarkable precision in the regulation with 480 steps in a 15 mm stroke.

The new regulation software implemented by us allows the refrigeration or air conditioning equipment to work in optimal conditions even with variable working pressures.

These valves are ideal for the feeding of evaporators of equipment such as: chillers, heat pump conditioning equipment, equipment for cold rooms, etc. The same valve and control can operate in refrigeration equipment at low temperatures and are compatible with all refrigerants R22, R134, R404, R407, Ammonia, CO2, etc. The axial movement of the PIN gives a perfect linearity in the refrigerant flow and the entry of the same can be on both sides, which makes it ideal for equipment with heat pump.

In a chiller this valve can be used, together with the control of the chiller, either Microchiller or pCO2 and by means of a digital output of any of these two controls enable the electronic expansion valve. That is, it notifies you when the compressor is running or not.

Electronic expansion valves drivers from www.goldair-control.com are hermetically sealed, step-by-step, optimized valves for liquid or gaseous mass flow control. The universal controllers  allow controlled operation of engine valves such as electronic expansion valves and pressure regulators evaporation, while controllers independent overheating maintain a stable level of superheat in industrial applications, refrigeration and air conditioning.Visit us on www.goldair-control.com

Applications and capabilities

It can also be used to control the refrigerant in any part of the system;

It works as an expansion valve, for hot gas bypass, head pressure, suction gas flow regulator, liquid line actuator and other applications;

Five different sizes of valves that cover a capacity of 5 to 290 of the total liquid refrigerants;

It maintains a desired overheating condition regardless of the conditions to offer a more efficient operating system.