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Fisher™ Types R622E and R652E 2-PSI Service Regulators
Types R622E and R652E, 2-PSI Regulators are Underwriters Laboratories (UL) listed regulators designed for 2-PSI LP-Gas systems.
They are installed downstream from a first-stage regulator to reduce an inlet pressure of 10 psig / 0,69 bar to a nominal 2 psig / 0,14 bar outlet pressure. The 2-PSI Regulators are designed for domestic applications that supply 2 psig / 0,14 bar LP-Gas to a line regulator located inside the building. These units have white closing caps for easy identification.
Fisher™ Types R622E and R652E 2-PSI Service Regulators


Body Sizes and End Connection Styles (inlet x outlet)
Type R622E: 1/2 and 3/4-inch FNPT
Type R652E: 3/4-inch FNPT
Maximum Inlet Pressures
Maximum Inlet Pressure: 10 psig / 0,69 bar
Emergency Inlet Pressure: 15 psig / 1,0 bar
Outlet Pressure Ranges
1 to 2.2 psig / 0.07 to 0.15 bar
Up to 1.68 MBTU/hr
Vent Size
3/4 NPT screened
Pressure Registration
Temperature Capabilities
-20° to 160°F / -29° to 71°C
Approximate Weight
1.4 Pounds / 635 grams


  • Improved Accuracy
  • Superior Relief Performance
  • Corrosion-Resistant Materials
  • Inlet Screen
  • Test Ports for Easy System Checks
  • Positive Drainage
  • 20-Year Recommended Replacement Life
  • UL Listed