What is the difference between reflective glass and transparent glass?
Transparent glass has smooth surfaces on both sides and is suitable for applications with aggressive media, as it can be combined with mica protection. Reflective glass, on the media side, has grooves that make the liquid level more visible due to the difference in the refractive indices of liquid and gas.
Transparent glasses DIN 7081
Transparent glasses have a smooth surface on both the media side and on the atmosphere side. These glasses are usually used in longitudinal sight glasses with open housings on both sides for attachment to containers or pipelines.
INFO Data sheet Reflective and Transparent glass - Differences and Application:
The smooth surface has the advantage that mica protection discs can be used for applications with particularly aggressive media. This is not possible with reflective sight glasses!
Reflective Glasses DIN 7081
A reflective sight glass is used to read the liquid level directly with the eyes or via a camera. On the media side, grooves are pressed into the reflective sight glass, making the fill level clearer and easier to read. They are mostly installed in closed fittings such as level indicators.
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