Victor ESS3-FG Series Single Stage Medium Duty Flow Gauge Regulator.


On orders over $200.00.
Contiguous U.S., Standard Ground Shipping


  • Gauges feature high-contrast graphics for a quick read.
  • Highest resistance to Oxygen-related fires in the industry.
  • Passes all CGA E-4 compliance testing, including the Heated Oxygen Impact Test, and meets or exceeds all requirements of UL 252.
  • SLAM Technology protects regulator vitals in the event of an accident by absorbing the impact using a 3-stage crumple zone in the adjusting knob.
  • Internal vent system protects regulator from water run-off in outdoor use.
  • A more natural and safer hand/body position while adjusting delivery pressure.
  • Color-Coded knobs for at-a-glance gas identification.
  • Unique configuration protects all elements critical to system integrity.
  • Passes the stringent ASTM G-175 promoted ignition test.
  • Better flow control across a full range of cylinder pressures.
  • Smallest, lightest and most compact heavy duty industrial regulator on the market today.
  • Heavy duty.
  • High capacity.
  • Single stage construction.

Dimensions : 6.8" W 172.7mm x 4.4" H 111.8mm x 3.9" D 99.1mm
Weight : 4lb. ( 1.81kg )


  • Forged brass body.
  • Zinc-Aluminum housing cap.
  • High impact ABS gauge guard..
  • 1.5" (38.1mm) gauges - brass.
  • Stem type seat mechanism.
  • 2" (50.8mm) diaphragm - fabric reinforced neoprene.
  • External self reseating relief valve. Not designed to protect downstream equipment (np relief valve is needed on low pressure fuel gas models).
  • Sintered inlet filter - nickel plated bronze.
  • SLAMTM impact absorbing safety knob.
  • Meets or exceeds CGA E-4, UL 252 and ASTM G-175 Promoted Ignition Test.


  • Maximum inlet.............3000 PSIG
  • Delivery range.............see chart

Victor ESS3-FG Series Medium Duty Flow Gauge Regulator
Buy Price Gas Service Model # Delivery Range PSIG Part No.
$170.84 Argon ESS3-FG-580 0 - 40 0781-3641
$170.87 CO2 ESS-FG-320 5 - 125 0781-3642

On orders over $200.00.
Contiguous U.S., Standard Ground Shipping

Last update 26 April 2021

All products subject to availability.
Prices are subject to change.