Working temperature: ≤ 500 °C, Working pressure: ≤ 16.0MPa.
Color
Usually supply the clear gauge glass;
Colored gauge glass is available,but need to reserve in advance.
Material
Al-Si glass
Main Composition
SiO2 Fe2O3 Na2O+K2O Al2O3 TiO2
70% 1.0% 4.0% 26% 1.0%
Chemical Property
Hydrolytic resistance ISO719-HGB 1 Class
Alkali resistance ISO695-HGB 2 Class
Acid resistance ISO195-HGB 1 Class
Usage
It is used in level gauge in boiler for water position.