Des-Case Oil Tank Sight Glasses (OSG)
Often referred to as BS&W bowl (bottom sediment and water bowl), our Oil Sight Glass (OSG) can play a critical role in early detection of contamination and allow for constant monitoring of what's in your oil that can decrease equipment life. Users have an immediate, crystal-clear visual inspection of the oil and a magnified view of the presence of sediment, thanks to an innovative white bottom design. The OSG has the versatility to be installed vertically or horizontally to a drain port depending on space needs for the application. With the addition of indication marks on the side of the bottle, you can quickly and easily monitor the rate of water accumulation. According to the latest API 610 standard (12th edition, January 2021) the use of a BS&W bowl is now recommended for wet sump oil lubricated pumps to detect the presence of water and other gross contamination.
- Oil Visibility - The view is crystal clear and now you can inspect your oil from the top of the sight glass.
- Extremely Durable - The inherently strong polyamide material will withstand the toughest environments.
- Chemical Compatibility - Polyamide is compatible with all gear and mineral oils, most synthetic oils, and diesel fuel.
- UV Resistant - Excellent weathering allowing it to withstand exposure to sun, rain, and other extreme conditions.
- Indication Marks - Visually inspect and monitor the rate of accumulation of water in the oil sight glass.
- Sediment Drainage - A sloped floor for better evacuation and resetting of the oil sight glass.
- White Bottom - Provides a highly visible canvas and virtually magnifies the presence of sediment.
- Allows for the observation of free water within the wet sump
- Spring loaded petcock allows free water to be drained off during normal operators rounds
- A darkening of the oil can be indicative of degradation of the fluid and can be used in conjunction the ASTM D1500 color comparator chart
- The presence of a hazy or cloudy oil/water emulsion can indicate a more serious issue such as severe fluid degradation of chemical contamination
- The observation of "shiny" particles in the bottom of the BS&W bowl can indicate active bearing wear