What is a Sight Glass?

A sight glass is a tool designed to enable people to see the level of fluids or gases in a system. In some instances, it allows them to look inside a closed system to see what is happening inside. It features glass panels, often called viewing glasses, where internal views are done. Sight glasses are used on many different types of equipment, providing ease and safety to the entire operation. Like other equipment parts, if a sight glass gets damaged, it can be replaced with a new one.

How a Sight Glass Works

A very simple sight glass can consist of a glass tube which is linked with the contents of something such as a tank. The level of fluid in the tube indicates the level of fluid in the tank. The back of the sight glass may be patterned or striped to make it easier to see the fluid level. Larger tubes may also offer people an opportunity to identify contaminants in the fluid which might interfere with the function of the device.

These devices can also be utilized to track pressure, such as in steam boilers. In this case, the sight glass contains both vapour and fluid, and the varying level indicates how pressurized the environment is. Equipment like espresso machines can be equipped with a glass gauge which allows people to determine the level of pressure in the system so that adjustments can be made as necessary. For safety, the glass in such gauges is usually tempered and reinforced to reduce the risk of explosion.

Viewing glass can also be highly useful. For example, many heaters which run on gas, kerosene, and other fuels have a viewing glass which people can use to see if the pilot light is on or not, and to make sure that all of the jets in the heater are working. Likewise, viewing glass allows people to see into kilns, fermentation tanks, and so forth. The glass provides a port for viewing without altering the environment inside, ensuring that the device will function properly while offering people an opportunity to monitor the contents safely.

Choosing Your Sight Glass

Sight glass is an essential part of your gauge apparatus. If you have doubts or questions about sight glasses, contact the experts at Quest Tec by visiting http://questtecsolutions.com/sight-glass-for-liquid-level-gauges.