E.C.A. Solenoid Valves are designed to be installed on refrigeration and air conditioning systems. Solenoid valves are compatible with all environmental friendly refrigerants like CFC, HFC, HCFC and CO2 (except NH3 ). Valves can be easily soldered to the system with copper tube connection. Every product is 100% tested for external leakages with helium detector. Coil assembly with additional customers ensures corrosion resistance and long life cycle.