IMPCO Large Size Mixer 300A , Single-Diaphragm Air Valve , Down-Draft Air Inlet , LPG / Natural Gas Applications
The Model 300A mixer is a single-diaphragm air valve for applications. It offers a down-draft air inlet that can be used for remote air filtration or open-element type air filters. This unit is available for LPG Vapor and Natural Gas applications with airflow requirements up to 348 CFM (164 L/s) or 432 CFM (204 L/s) depending on the part number. The 300A has numerous adapters to allow the installer to fit the 300A into most under hood vehicle applications.
The Model 300A is also available for feedback applications with the ‘FB’ designation. The 300A can also be equipped with a cam mechanism to allow the air valve to be raised to its full open position to minimize any restriction in the base vehicle air stream. Optional air cleaner assemblies are also available for engines which require higher CFM airflow
SPECIFICATIONS |
Fuel Type | LPG Vapor, Natural Gas |
Operating Temperature Range | -40ºF to +250ºF (-40ºC to 121ºC) |
Diaphragm Material | Hydrin (Standard), Silicone (Optional) |
HP/(kW) Rating(1 & 20) | 217 hp (161.8 kW) @ 348 CFM (164 L/s) and 1.5” Hg manifold depression |
HP/(kW) Rating (50 & 70) | 270 hp (201.3 kW) @ 432 CFM (204 L/s) and 1.5” Hg manifold depression |
Certification | UL (AU2317), Inquire for specific ECE approval |



