Maintain a Consistent Oil Level
The Constant Level Oiler maintains a constant lubricant level in a bearing housing or gearbox, automatically making up lubricant usage from its back-up reservoir.
The oiler is based on the simple air compensation principal. As the oil level in the bearing falls, so does the level in the body of the oiler.
This fall in level uncovers the bottom of the chamfered feed tube of the oiler and air is admitted into the oil reservoir. An equivalent amount of oil is permitted to escape from the reservoir down the oil feed tube to the body of the oiler, restoring the pre-set oil level and sealing off the air feed tube.
This sequence is repeated whenever the level of the oil in the bearing or sump fall and will continue until the reservoir is empty.
The clear transparent reservoir allows the level of oil remaining in the reservoir to be monitored and replenished before this occurs.
Benefits of the Constant Level Oiler
- Adjustable to allow fine tuning of the ultimate lubricant level
- Reliably eliminates risks and hazards inevitable with manual oiling methods such as lubricant spillage and guesswork when topping up
- Maintains cleanliness of the lubricant giving longer component life
- Reservoir in easy to view glass or plastic
- The transparent reservoir shows immediately the back-up volume available at any time
- Reduces maintenance costs by increasing the periods between inspection and replenishments
- Prevents overfilling which could cause overheating or mechanical damage to bearings / gears
Operation
The oiler is based on the simple air compensation principal. As the oil level in the bearing falls, the level in the body of the oiler also falls. This fall in level uncovers the bottom of the chamfered feed tube of the oiler and air is admitted into the oil reservoir. An equivalent amount of oil is permitted to escape from the reservoir down the oil feed tube to the body of the oiler, restoring the pre-set oil level and sealing off the air feed tube. This sequence is repeated whenever the level of the oil in the bearing or sump fall and will continue until the reservoir is empty. The clear transparent reservoir allows the level of oil remaining in the reservoir to be monitored and replenished before this occurs.
Specification
The standard constant level oiler’s body is made in brass and has 1/4” BSP side and bottom entry ports. Alternative designs of oilers are available with API threads, dust/moisture skirts, balance tubes for subatmospheric environments and with a top entry plug for direct mounting into a reservoir or sump. These are shown overleaf.
A 100 or 250 ml transparent reservoir can be supplied in glass. A 250 ml or 500 ml polythene reservoir is also available. A wire cage, which clamps onto the adaptor cap, can be used to protect the reservoir. The oiler is suitable for use with mineral lubricating oil with a viscosity that will flow through the feed tube and allow air bubbles to rise. If high viscosity lubricants or those with high tackiness additives are planned to be used, we will be pleased to carry out tests.
The operating temperature range is -10ºC to +60ºC.