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Closed System Oilers

Closed System Oilers are designed for all types of equipment where a constant level in an oil housing must be maintained.

Eliminates potential for contamination

Eliminates potential for misfeeding due to pressure or vacuum situations

Centerline or below oil level mounting option

One piece glass reservoir ensures proper constant level function

Intigral viewing window provides accurate mounting and setting of level

Closed System Opto-Matic Constant Level Oiler with Sight Gauge


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Non-Vented Design

Watchdog Oilers

Mounts on centerline of desired oil level, does not require adjustment or level setting, and no vent line required, simplifying installation.
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Accessory Item

Wire Guards

Used to protect the glass reservoirs on Opto-Matic Constant Level Oilers and Opto-Matic Closed System Oilers.
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Why do you need Closed System Oilers?

Closed System Oilers are designed for all types of equipment where a constant level in an oil housing must be maintained.

Oil Level

Improper oil level, low or high, is one of the leading causes of equipment failures.

Oil Contamination

70 percent of all premature machine failures can be attributed to contamination.

Atmospheric Conditions

Internal equipment pressure and vacuum conditions can affect dispensing in traditional vented to atmosphere type oilers. 

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Opto-Matic Oiler Color Collars

Learn More From Lubricology

Why three different colors of Closed Systems?

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05.11.2021 Dan Freeland

Why three different colors of Closed Systems?

If you get around to the maintenance of enough equipment, it’s possible that eventually you will run into three different Closed System Oilers by Trico. These three different types are defined by the color of the adjustable collar on the oiler.

Closed System Oiler - Red Collar Advantages

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09.20.2022 Dan Freeland

Closed System Oiler - Red Collar Advantages

The most significant difference between the red collar vs the blue and the zinc die cast versions are the seven independent through holes on the sides of the collar as opposed to the slots offered in the blue collar and the zinc die cast collar.

The Constant Level Oiler Understanding the Lubrication Principle and Product Family

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05.25.2021 Dan Freeland

The Constant Level Oiler Understanding the Lubrication Principle and Product Family

Constant level lubrication is the concept of maintaining a consistent level of oil in a lubricating sump. If there is any oil loss due to leakage or usage the reservoir of oil will provide a volume of oil.