Watchdog Oilers
The Watchdog Oiler maintains a constant level of oil in lubricating sumps. They do not require any level setting as they are mounted on the centerline of the desired oil level.

Feature
Visual Indication
An integral viewport eliminates need for additional component.
Additional Features
- Prevents Contamination
- Closed system design prevents contamination and spillage
- Easy to Install
- Mounts on centerline of desired oil level, does not require adjustment or level setting, and no vent line required, simplifying installation.
Other Specs
Model | Description | Material | Connection | Wire Guard | Capacity | A Dim (in) | B Dim (in) | C Dim (in) |
---|---|---|---|---|---|---|---|---|
31804 | Watchdog Oiler | Polysulfone Body and Reservoir | 1 NPT | No | 4 oz | 5-3/4 | 3-9/32 | 1 |
31818 | Watchdog Oiler | Aluminum Body, Glass Reservoir | 1/2 NPT | No | 4 oz | 6-1/4 | 4-1/8 | 1/2 |
31820 | Watchdog Oiler | Aluminum Body, Glass Reservoir | 3/4 NPT | No | 4 oz | 6-1/4 | 3-1/4 | 3/4 |
31821 | Watchdog Oiler | Aluminum Body, Glass Reservoir | 1 NPT | No | 4 oz | 6-1/4 | 3-1/4 | 1 |
31822 | Watchdog Oiler | Aluminum Body, Glass Reservoir | 3/4 BSPT | No | 4 oz | 6-1/4 | 4-1/8 | 3/4 |
31823 | Watchdog Oiler | Aluminum Body, Glass Reservoir | 1 BSPT | No | 4 oz | 6-1/4 | 3-1/4 | 1 |
31824 | Watchdog Oiler | Aluminum Body, Glass Reservoir | 3/4 NPT | Yes | 4 oz | 6-1/2 | 3-3/8 | 3/4 |
31825 | Watchdog Oiler | Aluminum Body, Glass Reservoir | 1 NPT | Yes | 4 oz | 6-1/2 | 3-3/8 | 1 |
31826 | Watchdog Oiler | Aluminum Body, Glass Reservoir | 3/4 BSPT | Yes | 4 oz | 6-1/2 | 4-1/8 | 3/4 |
31827 | Watchdog Oiler | Aluminum Body, Glass Reservoir | 1 BSPT | Yes | 4 oz | 6-1/2 | 3-3/8 | 1 |
31828 | Watchdog Oiler | Aluminum Body, Glass Reservoir | 1/2 NPT | Yes | 4 oz | 6-1/2 | 4-1/8 | 1/2 |
31831 | Watchdog Oiler | 316 Stainless Steel Body, Glass Reservoir | 1 NPT | No | 4 oz | 6-1/4 | 3-1/4 | 1 |
31833 | Watchdog Oiler | 316 Stainless Steel Body, Glass Reservoir | 1 NPT | Yes | 4 oz | 6-1/2 | 3-3/8 | 1 |
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BodyAluminum Body: Cast Aluminum
Thermoplastic Body: Polysulfone
Stainless Steel Body: Stainless Steel -
ReservoirAluminum Body: Glass
Thermoplastic Body: Polysulfone
Stainless Steel Body: Glass -
ViewportAluminum Body: Glass
Thermoplastic Body: Polysulfone
Stainless Steel Body: Glass -
Max. Operating Temp325°F/160°C
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O-RingViton®