Back-Pressure Regulator Application Controls

The cooling system is designed to maintain the set temperature at full load, any decrease the load, as a rule, below, below fullload temperature cools down.

To maintain constant temperature in applications with varying loads, means should be provided for changing the temperature of the refrigerant to meet the different requirements of the load.

The refrigerant temperature is a function of pressure in the evaporator. Thus,the most direct way to change the temperature of the refrigerant to meet different load requirements change, the system pressure. This change in pressure in the system is carried out by means of the adjustment of the back pressure regulator. A number of non-return valve control
available. Some of them are listed here.