The 1784NG Series Regulators are designed for the Natural Gas vehicle market. The 1784NG Series Regulators are engineered with unique design features ideal for optimal natural gas engine performance.


  • Highly responsive to changes in flow, pressure remains steady if flow increases.
  • New bonnet construction features hose barb & choice of ports for dome loading.
  • Adjusting screw is pre-set and protected against tampering by a pressure tight sealed plug.
  • Pre-set adjusting screw allows for internal adjustment.
  • Design utilizes abrasion resistant bushing for smooth performance.
  • Tied diaphragm minimizes risk of damage to downstream components in case outlet pressure increases above set point.
  • Design optimized to provide stable performance with natural gas.


Body Forged Brass
Bonnet Nickel Plated Aluminum
Diaphragm Viton
Springs and Fasteners Stainless Steel
Other valve parts S/S & Brass
Seat Disc & O-Rings Viton