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Metal air-line lubricator with sight glass, 1-1/2 inch NPT inlet, 275 cfm capacity

SPEEDAIRE

SPEEDAIRE 4ZL63 air compressor lubricator 1-1/2 in 275 cfm

SKU CH-7E85-P0XVB

Heavy-duty mist lubricator with metal sight-glass bowl delivers up to 275 cfm at 250 psi and 175 °F

  • Delivers consistent mist lubrication for pneumatic tools
  • 275 cfm maximum flow supports high-demand air systems
  • 250 psi operating pressure handles heavy-duty applications
  • Metal bowl with sight glass allows quick oil-level checks
  • Screwdriver adjustment gives precise oil-feed control

1-1/2 in NPT airline lubricator

The SPEEDAIRE 4ZL63 is a heavy-duty mist lubricator designed for compressed-air systems that require continuous oil delivery. Its 1-1/2 in female NPT inlet suits large-capacity lines feeding multiple tools or machines. The aluminum body with metal bowl and sight glass lets operators confirm oil level at a glance. It is built for industrial maintenance crews and OEM integrators who need reliable lubrication in fixed installations.

250 psi rating and 175 °F limit

Rated for 250 psi maximum operating pressure and 175 degrees F maximum temperature, the unit handles typical shop air without relief-valve trips. The mist-style lubrication introduces oil only when air flows, so there is no idle consumption or pressure drop when the line is static. A screwdriver-adjustable PE mechanism sets the feed rate precisely, keeping downstream cylinders and valves protected while avoiding excess fog in the exhaust.

275 cfm flow with left-to-right orientation

At 275 cfm maximum flow the lubricator serves high-demand circuits such as robotic cells or multi-station assembly lines. The fixed left-to-right flow direction means piping must be planned accordingly; reverse mounting will not function. The 4-1/2 in overall width fits standard modular FRL manifolds, freeing bench space compared with bulky legacy bowls. Buyers needing right-to-left flow or a different port size will need an alternative model.

Highlights

  • Delivers consistent mist lubrication for pneumatic tools
  • 275 cfm maximum flow supports high-demand air systems
  • 250 psi operating pressure handles heavy-duty applications
  • Metal bowl with sight glass allows quick oil-level checks
  • Screwdriver adjustment gives precise oil-feed control

Specifications

BrandSPEEDAIRE

Questions about this item

How do I install the SPEEDAIRE 4ZL63 lubricator and what step is commonly missed?

Connect the 1-1/2 in female NPT inlet with airflow left to right, then set the screwdriver adjustment before pressurising; the step often missed is verifying the sight dome shows mist at the 275 cfm flow rate.

What maintenance will the SPEEDAIRE 4ZL63 need over time?

Refill the metal bowl with compatible oil, clean the sight glass and sight dome, and inspect the PE adjustment mechanism for wear; replace seals if mist output drops below the 275 cfm rating.

What is the first limit reached when running the SPEEDAIRE 4ZL63 continuously at full flow?

The 250 psi maximum operating pressure or the 175 °F temperature limit will be reached first, depending on supply conditions, before the 275 cfm flow capacity becomes restrictive.

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