IMPCO JB-2 Model J LPG Propane Regulator Vaporizer Blue Spring Silicone Diaphrag

Overview

IMPCO JB-2 Regulator Converter Model J – LP & Natural Gas Compatible w/ Blue SpringThe IMPCO JB-2 is a high-performance regulator-converter designed for use with low-pressure vaporized LP (propane) or natural gas systems. This OEM Model J unit is equipped with a blue spring for calibrated output and enhanced sensitivity, making it ideal for industrial engines, forklifts, stationary generators, and mobile equipment.Key Features:Compatible with vapor withdrawal LP or NG fuel systemsRobust aluminum construction with factory-sealed componentsBuilt-in idle mixture adjustmentProven Model J configuration with upgraded springExcellent for OEM replacements and custom engine retrofitsWorks with IMPCO carburetors, shut-off solenoids, and fuel lock-offsPair with Rego or Cavagna shut-off valves and Type 1 or POL fuel input connections.

Description

IMPCO JB-2 Model J LPG Regulator/Vaporizer

The IMPCO JB-2 is a two-stage LPG regulator/converter designed for propane-powered industrial engines. It uses a blue secondary spring and silicone diaphragm, with a nominal outlet pressure of -1.5″ W.C.

The silicone diaphragm differentiates the JB-2 from the standard JB with Hydrin diaphragm and is particularly suitable for cold-temperature applications.

The Model J series is designed for engines up to approximately 100 HP (75 kW). Available specifications indicate a maximum inlet pressure of 312 PSI, 40-micron filtration, and an operating temperature range of approximately -40°F to +250°F.

Key Features:

• Genuine IMPCO Model J design
• Part number JB-2
• LPG/propane regulator and vaporizer
• Two-stage pressure regulation
• Blue secondary spring
• Silicone diaphragm
• -1.5″ W.C. nominal outlet pressure
• Up to 312 PSI inlet pressure
• Rated for engines up to 100 HP
• Suitable for forklifts and other LPG-powered industrial equipment
• Coolant-heated vaporizer design

Brand	IMPCO
MPN	JB-2
Model	Model J
Product Type	Two-Stage Regulator / Vaporizer / Converter
Fuel Type	LPG / Propane
Diaphragm Material	Silicone
Secondary Spring	Blue
Outlet Pressure	-1.5″ W.C. (-0.37 kPa)
Maximum Inlet Pressure	312 PSI
Minimum Inlet Pressure	30 PSI
Engine Capacity	Up to 100 HP / 75 kW
Fuel Filtration	40 micron
Application	Mobile, stationary, industrial & automotive LPG engines
Heating	Engine coolant heated for liquid LPG
Recommended Mounting	Vertical
Condition	New / New Old Stock, as applicable

Product details

Part / SKU	JB-2

Package includes

• IMPCO JB-2 Model J LPG Propane Regulator Vaporizer Blue Spring Silicone Diaphrag

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.