Pressure regulators can be installed on three main branches of a line (liquid line, intake line, and hot gas line) as well as on the high and low pressure lines, ensuring constant pressure to refrigeration and air conditioning systems. There are six different types, with variants available based on the fluids used.

Capacity regulators are installed on refrigeration and air conditioning systems to limit the minimum evaporation pressure during periods of reduced load.

Start pressure regulators are used in low temperature refrigeration systems and are designed to prohibit the compressor motor from overloading when the intake pressure exceeds the operating pressure expected from the compressor.

Condensing pressure regulators are designed to limit the liquid flow rate from the condenser to the liquid receiver tank, effectively reducing the exchange surface of the condenser and increasing the condensation pressure.

Evaporator pressure regulators maintain the evaporation pressure constant, thereby regulating the evaporator temperature as a function of the change in load.

On the other hand, liquid receiver tank pressure regulators are used along with condensing pressure regulators, as an alternative to the differential valve.

Finally, water regulating valves are used typically on condensers supplied by well water. They are used to keep the condensation pressure constant at a pre-set value.