Series NR Regulator (NR)

Series NR Regulator (NR)
Series NR Regulator (NR)
Series NR Regulator (NR)

1/4", 3/8” and 1/2" NPT, BSPT
Inlet 232 Psig (16 Bar)


Designed specifically for Large Vehicle NG Fueling Systems, the Series NR features our unique pre-formed Phosphorous Bronze Dual Diaphragm Stack providing increased sensitivity to changes in fuel demand over conventional flat sheet metal diaphragm designs. The metal diaphragms also provide wider temperature operating conditions than elastomeric diaphragm designs. An integral Stainless Steel filter screen aids in providing long service life. The Series NR has been tested and certified for use on Natural Gas Vehicle Fueling Systems to the rigid standards of the European Regulation ECE R110. All NR Series Regulators are provided R110 Stamped.


  • Specifically Designed for NGV Fuel Systems
  • Certified to European Regulation UN ECE R110
  • Unique Pre-Formed Multiple Stacked Phosphorous Bronze Diaphragms
  • Hex Head Adjustment Screw with Locknut
  • Inlet Strainer/Filter

Technical Data

  • Maximum Inlet Pressure: 232 Psig (16 Bar)
  • Outlet Pressure Range: 0 to 120 Psig (0 to 8.3 Bar)
  • Temperature Rating: -40° to 250° F (-40° to 120 °C)
  • Fail Open CV: 1/4″ NPT and BSPT – 1.6
    • 3/8” NPT – 2.4
    • 1/2” NPT, BSPT, 8SAE – 2.9
  • UN ECE R110 Registration Number
    • 110R-000115 Class 1, per ECE R110

Materials of Construction

  • Available in Brass