SPEEDAIRE
SPEEDAIRE 4ZL44 Pneumatic Oil Filter 3/8 NPT 20 cfm
Removes oil aerosols from compressed-air lines at up to 20 cfm through a 3/8 NPT coalescing element rated to 150 psi and 125 °F
- Coalescing filtration removes oil aerosols for cleaner air supply
- 20 cfm maximum flow supports moderate pneumatic tool demand
- 150 psi operating pressure handles typical shop compressor output
- 125 °F temperature rating suits standard compressed-air environments
- Polycarbonate bowl with manual drain enables quick visual checks and servicing
Purpose and fit
The SPEEDAIRE 4ZL44 is a coalescing pneumatic oil filter designed for compressed-air systems that require removal of oil aerosols and fine particles. It suits workshops and light-industrial lines running standard-duty lubricators or tools where clean, dry air is specified.
Flow and pressure limits
Rated at 20 cfm maximum flow with a 150 psi ceiling, the filter operates up to 125 °F. The 3/8 inch NPT female ports fix the connection size, so higher-volume circuits or larger pipework would exceed the rated capacity and pressure envelope.
Construction and daily use
A polycarbonate bowl provides visible contaminant level checks while resisting impact in normal shop conditions. Manual drain requires periodic operator attention, and the left-to-right flow arrow dictates mounting orientation; no differential-pressure indicator is fitted, so filter element condition must be tracked by schedule.
Highlights
- Coalescing filtration removes oil aerosols for cleaner air supply
- 20 cfm maximum flow supports moderate pneumatic tool demand
- 150 psi operating pressure handles typical shop compressor output
- 125 °F temperature rating suits standard compressed-air environments
- Polycarbonate bowl with manual drain enables quick visual checks and servicing
Specifications
| Brand | SPEEDAIRE |
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Questions about this item
Should I choose the 20 cfm model or a different capacity?
The 20 cfm rating matches the maximum flow rate of this filter, so select it when your compressor delivers up to 20 cfm at the point of use.
What does the 20 cfm figure mean once the filter is installed?
It means the filter can pass up to 20 cubic feet per minute of compressed air while removing oil aerosols, provided inlet pressure stays within the 150 psi limit.
How does the 3/8 NPT connection affect what I can plumb?
The 3/8 inch NPT female threads on both inlet and outlet accept standard 3/8 inch NPT male fittings, limiting the line size to that thread diameter.
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