SPEEDAIRE
SPEEDAIRE 4ZK79 Filter/Regulator 509 cfm 250 psi 40 micron 12.90 in H 7.48 in W
Filters and regulates compressed air at up to 509 cfm and 250 psi with a 40-micron particulate element
- Delivers high-volume airflow up to 509 cfm
- Withstands demanding systems at 250 psi maximum pressure
- Captures particles down to 40 micron for cleaner air
- Durable aluminum body with metal bowl and sight gauge
- Compact 12.90 in height fits tight installations
SPEEDAIRE 4ZK79 Filter/Regulator
The SPEEDAIRE 4ZK79 is a heavy-duty filter-regulator designed for compressed-air systems in industrial and automotive workshops. It combines particulate filtration and pressure regulation in a single aluminium body. The unit mounts inline with a left-to-right flow path and features a reinforced nylon adjustment knob on top for easy pressure setting. It is supplied new and ready for installation on a 1-inch NPT supply line.
509 cfm maximum flow at 250 psi
This model delivers a maximum flow rate of 509 cfm while handling up to 250 psi operating pressure, making the flow-pressure envelope the decisive specification for correct sizing. The 40-micron metal bowl with sight gauge captures particulate contamination before it reaches downstream equipment. A manual drain allows periodic removal of collected moisture and debris without automatic timer or float mechanisms.
Suits high-flow shop mains needing combined
Installers who need a single compact unit to clean and regulate a high-volume main line will find this unit matches the requirement. Operations requiring an integrated pressure gauge, automatic drain, finer filtration than 40 micron, or a smaller port size should look at alternative configurations because those features are not present on this model.
Highlights
- Delivers high-volume airflow up to 509 cfm
- Withstands demanding systems at 250 psi maximum pressure
- Captures particles down to 40 micron for cleaner air
- Durable aluminum body with metal bowl and sight gauge
- Compact 12.90 in height fits tight installations
Specifications
| Brand | SPEEDAIRE |
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Questions about this item
What does the 509 cfm rating mean once this filter/regulator is installed in a real compressed-air system?
It indicates the maximum volume of compressed air the unit can pass at its rated pressure, so downstream tools and equipment can draw up to that flow without excessive pressure drop.
How does the 1 in NPT inlet cap practical airflow and pressure in everyday use?
The 1-inch NPT female port sets the physical connection size; combined with the 250 psi maximum operating pressure it limits the system to that pressure while the 509 cfm rating defines the flow ceiling through that port.
What clearance and mounting space does the 12.90 in height and 7.48 in width require?
You need at least 12.90 inches of vertical clearance and 7.48 inches of horizontal space to accommodate the aluminium body, plus room for the top-mounted adjustment knob and manual drain access.
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