Pressure Relief Valve RV-1A

  • Factory-set pressure of approximately 175 psi
  • In-line service
  • UL and C-UL Listed, FM Approved
  • Simple trim configuration
  • Available in groove x groove and flange x flange


The RV-1A valve is designed and assembled for relief of excess water pressure. It is typically used to automatically relieve pressure and maintain a relatively constant system pressure as flow demands change. There is no need to bleed trapped air from the diaphragm. The valve design uses the DV-5A valve body, incorporating the simple diaphragm design. This makes maintenance easy thanks to the single moving part.