Product description：
Stainless steel sight glass tube glass tube sight glass: used for draining or receiving the backflow before the tank, cooling water and other liquid pipelines to observe the liquid flow. Valve body materials: carbon steel, stainless steel, rubber lining, fluorine lining, etc. Nominal pressure range: 2.5 and 6 kg/cm2.
Working temperature: metal≤200℃, plastic≤80℃, allowable rapid change temperature 80℃ Nominal diameter: DN15~DN150 The glass material of the sight glass is tempered borosilicate glass, and the temperature difference of tempered borosilicate glass is 180℃.