Pressure and Temperature Regulators


SUPERFREEZE Pressure Regulators types SPR1 & SPR3 are specially designed for capacity regulation in refrigeration, freezing and air conditioning plant for ammonia and fluorinated refrigeration.

SAR is a pilot operated main valve with screwed-in pilot valve or valves mounted in an external pilot line.

SAR used in refrigeration plant

  • Direct expansion
  • Pump recirculation
  • Natural circulation


Refrigerants : R-717 (Ammonia), R-12, R-22, R-502 etc.
Media temperature range : -50oC to +120oC
Max. operating pressure : 28 bar
Max. test pressure : 42 bar
Size : 5-25, 32, 40, 50 & 63mm


  • Constant pressure regulation
  • Electronic media temperature regulation
  • Electrical On-off regulation
  • Differential pressure regulation
  • External control pressure with electric on-off regulation complain with evaporate pressure regulation
  • Constant pressure regulation companied with electric shut-off regulation
  • Thermostatic regulation companied with constant pressure regulation