The enlargement valve retains back the refrigerant and maintains the large force of your condenser. Inside the growth valve, a little orifice will allow a restricted level of refrigerant to carry on to stream. Mainly because it flows via this restriction it reaches the minimal force facet of your valve. https://www.penmann.co.uk/penmann-delivers-permanent-glycol-chiller-solution-for-ambrosia-creamery-in-lifton/