For low pressure water vessels, storage tanks, containers, etc. Glass-Trac provides Type 1TC carbon steel and 316 stainless steel valves for Tubular Gages.
These valves are used with 5/8", 1/2" or 3/4" O.D. Pyrex Red Line, High Pressure or Heavy Wall Glass. Each valve contains a Stainless Steel ball check which closes the valve in the event of glass breakage.
Each 1TC has either a 1/2" or 3/4" rigid vessel connection, plain closing stem and a straight pattern body.
The maximum working pressure is dependent on the length and rated pressure of the glass. The 1TC valve can be used with 4 guard rods.