High Pressure Gas Pressure Regulators


The BelGAS Type R627 gas pressure relief regulator features an internal valve that provides reliable protection against over pressurization, and in many cases, eliminates the need for an external relief valve. As output pressure builds above the start-to-discharge point, the relief seat disengages from the diaphragm and excess pressure is relieved through the bonnet vent port. As a result, output pressure reduces and returns to initial set point.


  • Available spring ranges from 5-20 PSIG up to 70-150 PSIG
  • Internal relief valve, which can eliminate the need for an additional external valve
  • Integral relief indicator, attached to the Type R627 vent assembly, providing visual indication of relief valve operation
  • Low carbon steel construction
  • Low temperature services