Impco Model L Convertor

The IMPCO Model L is a coolant-heated two-stage converter/regulator designed to vaporize liquid propane (or handle vapor) and deliver a stable negative outlet pressure (below atmospheric). Built for mobile, industrial, and automotive engine applications, it offers reliable performance across a wide temperature range and is suited for moderate-to-high power requirements.

Key Features

• Two-stage regulation with vaporization for use with liquid or vapor LPG fuels

• Delivers a fixed outlet pressure of approximately −1.5″ W.C. (−0.37 kPa)

• Rear fuel inlet design with primary and secondary diagnostic test ports for maintenance checks

• Coolant heating jacket required for liquid LPG operation to prevent freezing and ensure vaporization

• Optional diaphragm materials for improved durability under different fuel or environmental conditions

• Operates across a wide temperature range: from around −40°F (−40°C) up to +250°F (+121°C)

• Requires fuel filtration (≈ 40-micron) to protect internal components from contamination

Specifications

Applications

• Engines in vehicles, forklifts, or stationary equipment requiring vaporization of liquid propane

• Mobile or industrial installations where stable negative gas pressure is needed

• Situations with cold start or low ambient temperature where vaporizing LPG is critical

• Systems where diagnostic access is useful for maintenance

Why Choose the IMPCO Model L

The Model L is a strong choice for propane converters where you need reliable vaporization and negative pressure service. With its coolant heating, durable build, and fixed negative outlet pressure, it’s built to handle tough conditions, cold weather, and filtration challenges. It’s especially suited for industrial or automotive propulsion and is a proven performer in its class.