HG21619-502 Pressure Vessel Flange Sight Glass Main Purpose: Used in industrial production installations such as petroleum, chemical, chemical fiber, pharmaceutical, and food industries to observe the flow and reaction of liquids, gases, steam, and other media at any time. It is an indispensable accessory for ensuring normal production.

HG21619-502 Pressure Vessel Flange Sight Glass Main Technical Parameters:
1. Material: Carbon steel, stainless steel (SUS304, SUS304L, SUS316, SUS316L, 321, 2205, TA2, etc.)

2.Window Material: Tempered glass, borosilicate glass, quartz glass.
3. Operating Temperature: The maximum allowable temperature for glass is 150°C, with a rapid temperature change range from 120°C to 20°C. The maximum allowable temperature for borosilicate glass is 280°C, with a rapid temperature change range from 230°C to 20°C. The maximum allowable temperature for quartz glass is 800°C, with a rapid temperature change range from 550°C to 20°C.
4. Operating Pressure: Soda-lime glass: 0.6 MPa.
5. Borosilicate glass: 0.6~1.0 MPa.
6. Quartz glass: 0.6~2.5 MPa.
7. Sealing Ring Material: Polytetrafluoroethylene, oil-resistant asbestos, rubber, etc.
8. Manufacturing and Inspection Standards: Designed, manufactured, and accepted in accordance with《HGJ501-86 Pressure Vessel Sight Glass》.