Thermal thermostatic expansion valves are wildely used for the evaporators, kinds of models available, inclduing in internal equalizer and external equalizer, suitable for the refrigerant R12, R22, R134a, R404a and R507 etc. Norminal refrigerating capacity is based on the condensing temperature 32 degree, evaporating temperature 5 degree. Its connection type is for SAE and solder ODF, regular the port size for 3/8″x1/2″ – 10x12mm, the equalization connection for 1/4″ or 6mm, copper capillary for 1.0m length.