The Model PJ is a positive pressure, two stage regulator. It is designed for positive pressure Natural Gas fuel systems where liquid vaporization and engine coolant heating are not required, however, additional fuel temperature and mixture stability may be gained through the use of engine coolant.
This regulator is able to provide positive flow in applications up to 80 hp (59.7 kW). Fixed regulators can be converted in the field to adjustable with the AC1-74 kit. Fixed pressure regulators are preferred in applications that are not subject to fuel quality variations or to deter unauthorized tampering. There is a primary pressure test port and “left” or “right” fuel outlets.
Fuel Type Natural Gas
Maximum 312 PSI (21.51 Bar)
Minimum 30 PSI (207 kPa)
Nominal Outlet Pressure
Standard +5.0” w.c. (1.25 kPa)
HP/kW 80 hp (59.7 kW)
Operating Temperature -40°F to +250°F (-40°C to +121°C)
Fuel Filtration (required) 40 micron
Heating Chamber Source Optional
Mounting Position Vertical recommended
Applications Mobile, industrial and automotive
Certification Inquire for specific ECE approval