Type of Glass: Borosilicate

Working Pressure:
1/2", 3/4", 1" BP = 100 PSI
1 1/2", 2", 3" BP = 75 PSI
4" = 50 PSI
6" = 30 PSI

Operating Temperature (Maximum):
Freezing point to 450°C
Normal use — 230°C

Glass Thermal Expansion:
32 x 10-7/°C

Glass Therm. Conductivity:
0.73 BTU/ hr. ft.2/F°/ft. at 212°F