Dungs FRNG 5100 Zero Pressure Regulator

Proportionator/ Zero Governor Flanged - Frng D214422 Frng 5100 Dn. 100 4" Nominal Pipe Size Proportionator Specifications Max Operating Pressure: 7 Psi (500 Mbar) Optimal Input Pressure Range: 2 To 82 In. W.C. (5 To 200 Mbar) Output Pressure Range: 0 To 60 In. W.C. (10 To 150 Mbar) Temperature Rating: -40°F To + 160°F (-40°C To + 70°C) Zero Governor Specifications Max Operating Pressure: 7 Psi (500 Mbar) Optimal Input Pressure Range: 2 To 20 In. W.C. (5 To 50 Mbar) Output Pressure Range: -1.2 To 2 In. W.C. (-3 To 5 Mbar) Temperature Rating: +5°F To + 160°F (15°C To + 70°C) Description The Dungs Flanged Frng Proportionator/Zero Governor Has An Adjustable Set Point Spring And A Nonadjustable Counter Spring. The Dungs Flanged Frng Is Recommended For Industrial And Commercial Heating Applications. It Is Suitable For Natural Gas, Propane, Butane, And Other Inert Gases. Application (Proportionator) Holds A Constant Gas/Air Ratio By Varying Gas Flow To The Burner In Proportion To Combustion Air Flow. Adjustable Ratio For Excess Gas Or Air Operation. Application (Zero Governor) Controls Fuel By Reducing Incoming Gas Pressure To Zero Or By Adjusting It To Slightly Above Or Below Atmospheric Pressure.