Trico Watchdog Oiler

closed system - watchdog oiler, trico

The Watchdog Oiler design make it particularly well-suited for use with bearing housings, gearboxes and any other oil sump lubrication applications. It is the perfect choice for industries such as chemical processing, power generation, pulp and paper as well as utility industries in general.

The transparent viewport allows for easy inspection of the lubricant level and condition. Mount this constant level oiler on the centerline of the desired oil level to have a smooth operation without any need for further adjustment or level setting.

Product Details

Model Number Construction Material Connection Wire Guard Capacity Dim A B C
31804 Polysulfone Body and Reservoir 1 NPT No 4 oz / 130 cc 5-3/4" 3-9/32 1"
31818 Aluminum Body, Glass Reservoir 1/2 NPT No 4 oz / 130 cc 6-1/4" 4-1/8" 1/2"
31820 Aluminum Body, Glass Reservoir 3/4 NPT No 4 oz / 130 cc 6-1/4" 3-1/4" 3/4"
31821 Aluminum Body, Glass Reservoir 1 NPT No 4 oz / 130 cc 6-1/4" 3-1/4" 1"
31822 Aluminum Body, Glass Reservoir 3/4 BSPT No 4 oz / 130 cc 6-1/4" 4-1/8" 3/4"
31823 Aluminum Body, Glass Reservoir 1 BSPT No 4 oz / 130 cc 6-1/4" 3-1/4" 1"
31824 Aluminum Body, Glass Reservoir 3/4 NPT Yes 4 oz / 130 cc 6-1/2" 3-3/8" 3/4"
31825 Aluminum Body, Glass Reservoir 1 NPT Yes 4 oz / 130 cc 6-1/2" 3-3/8" 1"
31826 Aluminum Body, Glass Reservoir 3/4 BSPT Yes 4 oz / 130 cc 6-1/2" 4-1/8" 3/4"
31827 Aluminum Body, Glass Reservoir 1 BSPT Yes 4 oz / 130 cc 6-1/2" 3-3/8" 1"
31828 Aluminum Body, Glass Reservoir 1/2 NPT Yes 4 oz / 130 cc 6-1/2" 4-1/8" 1/2"
31831 316 Stainless Steel Body, Glass Reservoir 1 NPT No 4 oz / 130 cc 6-1/4" 3-1/4" 1"
31833 316 Stainless Steel Body, Glass Reservoir 1 NPT Yes 4 oz / 130 cc 6-1/2" 3-3/8" 1"
Property Value
Body Aluminum Body – Cast Aluminum
Thermoplastic Body – Polysulfone
Stainless Steel Body – Stainless Steel
Reservoir Aluminum Body – Glass
Thermoplastic Body – Polysulfone
Stainless Steel Body – Glass
Viewport Aluminum Body – Glass
Thermoplastic Body – Polysulfone
Stainless Steel Body – Glass
Max. Operating Temp 325ºF/160ºC
O-Ring Viton®
  • Closed system design eliminates contamination and spillage
  • As no vent line to pump bearing housing is needed, installation is a breeze
  • Once mounted on the centerline of desired oil level, there will be no need for adjustment or level setting
  • Transparent, Integral viewport allows for easy reading of lubricant level and condition