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C-JB Regulator / Converter / Vaporizer

Availability: In stock



Century Model J Series


General: The C-JB Regulator / Converter / Vaporizer is an LPG liquid withdrawal high pressure regulator. This regulator provides excellent fuel delivery with liquid-cooled engines up to 100 HP. For indoor applications by NFPA definition, a regulator is not considered a positive shut-off valve. An approved automatic shut-off device is required to be installed. This will shut off the fuel supply should the engine fail while unattended. Shut-off devices come in vacuum- or solenoid-actuated configurations.

Operation: Liquid propane enters the regulator and then is vaporized using heat from the engine’s coolant. Tank pressure is reduced to approximately 1.5 psi. As negative pressure is transmitted from the carburetor to the regulator, the regulator releases propane vapor to the carburetor. Some regulators are equipped with a primer button. Correctly installed regulator should not require priming. If priming is required, a maximum duration of only 1 second should be used.

Installation: The C-JB Regulator / Converter / Vaporizer should be mounted as close to the carburetor as possible, with the fuel outlet placed in the lowest position for best flow.

Service: The C-JB Regulator / Converter / Vaporizer should be periodically checked for leakage. If the unit requires service, we suggest you take it to a qualified service technician. If not available, Woodward will furnish a list of repair facilities or provide service information.

  • Propane liquid withdrawal vaporizing regulator
  • For liquid-cooled engines up to 100 HP
  • deal for mobile industrial equipment applications
  • Rated to 312 psi maximum inlet pressure


Fuel TypeLPG Liquid/Vapor
Inlet Pressure, Maximum312 psi (21.51 Bar)
Inlet Pressure, Minimum30 psi (207 kPa)
Nominal Outlet Pressure, standard blue spring-1.5" w.c. (-0.37 kPa)
HP/kW100 HP (75 kW)
Operating Temperature Range-40 to +250 degrees F (-40 to +121 degrees C)
Fuel Filtration40 micron
Heating Chamber SourceRequired for liquid LPG
Mounting PositionVertical recommended. Horizontal position can be used when fuel contamination can be controlled with HD-5 or HD-10 specified LPG fuel
ApplicationsMobile, stationary, industrial, and automotive

A converter thermostat is recommended for maximum performance and longevity of the converter.

Century Model J Specifications Sheet

Additional Information

Prop 65 Warning for California Residents WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.

C-JB Regulator / Converter / Vaporizer

Cross References

HYSTER 0213549, NISSAN 16310-90H71, NISSAN 16310-90H72, TOYOTA 23530-U2000-71, TOYOTA 23530-U2001-71, YALE 517079800, IMPJB, INLPG-1019, LP233-6000, SYLP1000, SYLP1000

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