The liquid level gauge, also named as reflex glass or sight glass is made by heat-resistant glass. After been tempered, the glass is of high temperature resistance, good tensile strength and excellent chemical stability. It is mainly used to observe the liquid level in boiler or pressure vessel. 

Such kind of liquid are of high corrosion and high-pressure, thus glass gauges must be of high strength, high temperature resistant, good chemical stability and be able to sustain rapid temperature changes. Our glass gauges can meet all these requirements, because we focus on raw glass material selection, glass processing and testing. We strongly suggest buying good quality glass gauges.   

We offer diversified gauges to meet client different requirements: Single groove gauge, double groove gauge and triple groove gauges. Gauges lengths, width, groove quantity, thickness can all be customized as per client requests.
Specifications: 
 
Our normal gauge sizes are as below: 
 
 



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