Pneumatic Products, Air Treatment (FRL)

Lubricator Model 651

  • Reliable lubrication
  • Refillable under pressure
  • Lubricates even at very low flow


Lubricators are a necessity to prolong the service life of tools and machines powered by compressed air. They help maintain peak performance and reduce wear and tear on equipment. The CEJN air treatment system offers lubricator Model 651 for working pressures of up to 10 bar (145 PSI). Model 651 can deliver the correct amount of oil, adjusted by a lockable oil-setting knob, for most pneumatic system applications. The transparent glass allows for 360-degree visibility of oil flow. For optimum effect, always install lubricators close to the application. CEJN lubricators can easily be adjusted without tools.

CEJN lubricators start to lubricate at very low flow. Recommended lubrication oil is 199031580 (1 L) and 199031581 (5 L).

Application: Virtually every industry, e.g. manufacturing, food, processing, carpentry, paper mills, etc., relies on compressed air as an energy source. In a shared compressed air network, with numerous outlets and an extensive pipework system, air preparation units are especially important.


For larger sizes, we recommend Model 652 and Model 160. Additional air treatment products are available in our air treatment range, including preassembled units.

Lubricator Model 651
Part No. A B C D E F
19 503 1302195031302 50 198 160 58 29 G 1/4"
Lubricators Part No. Connection Bowl capacity Max oil capacity Min flow Max flow
  19 503 1302 195031302G 1/4"7 cl4.5 cl4.5 l/min (0.2 CFM)1940 l/min (68.5 CFM)


Check with an authorized CEJN distributor for availability and prices. Other connections and sealing material on request. Some part numbers may be subject to minimum order quantities. CEJN reserves the right to make changes without further notification. Thread connections are listed according to ISO Standards.
Technical data
Media: Compressed air, neutral gas
Max. working pressure @ 23°C: 10 bar (145 PSI)
Temperature range: 5°C — +50°C (41°F — +122°F)
Material body: Aluminium
Material bowl: Polycarbonate
Lubrication: Selective oil fog
Lubrication oil: Non-detergent type and without aggressive additives
Oil refilling: Pressurized

Flow capacity is measured at 6.3 bar (91.4 PSI) inlet pressure, and pressure drop at 1 bar (14.5 PSI).

Air Flow
Outlet pressure, bar (PSI) Lubricator Model 651 Flow, l/min. (CFM)

Available files for download

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