SPEEDAIRE
SPEEDAIRE 4ZK81 Filter/Regulator 1/4in NPT oil removal 0.01 micron 150 psi
Removes oil and particulates down to 0.01 micron at 150 psi through a 1/4 NPT inlet
- Removes oil down to 0.01 micron for clean air supply
- Handles up to 150 psi operating pressure for demanding applications
- 1/4 inch NPT inlet fits standard compressed air lines
- Manual drain allows easy removal of collected contaminants
- Compact miniature series saves space in tight installations
SPEEDAIRE 4ZK81 Filter/Regulator
The SPEEDAIRE 4ZK81 is a miniature filter-regulator designed for compressed air systems requiring oil removal down to 0.01 micron. It suits workshops and light industrial lines where clean, regulated air protects downstream tools and instruments. The 1/4 inch NPT female inlet fits standard piping without adapters.
Upgrades from basic particulate filters
This unit replaces simple particulate filters that cannot capture oil aerosols. The jump is worth it when pneumatic equipment demands oil-free air to prevent contamination or premature wear. It handles a maximum flow of 4 cfm at 150 psi operating pressure. The reinforced nylon adjustment knob on top allows quick pressure setting.
0.01 micron filtration capacity
The polycarbonate bowl and zinc body deliver 0.01 micron filtration for effective oil and particulate removal. It comfortably handles general pneumatic circuits within the 4 cfm rating. Headroom decreases when demand exceeds the rated flow or when inlet pressure surpasses 150 psi. Manual drain requires periodic operator attention to empty collected liquids.
Highlights
- Removes oil down to 0.01 micron for clean air supply
- Handles up to 150 psi operating pressure for demanding applications
- 1/4 inch NPT inlet fits standard compressed air lines
- Manual drain allows easy removal of collected contaminants
- Compact miniature series saves space in tight installations
Specifications
| Brand | SPEEDAIRE |
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Questions about this item
What size NPT thread does the 1/4 in inlet use?
The inlet is a 1/4 in female NPT connection, so it threads directly onto a matching male NPT fitting without adapters.
How is the bowl removed for filter changes?
The polycarbonate bowl unscrews by hand; the step often missed is depressurising the line first, otherwise residual pressure can make the bowl difficult to release.
When should the 0.01 micron filter element be replaced?
Replace the element when pressure drop across the unit becomes noticeable or at the interval recommended for your air quality, whichever comes first.
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