Tubular (Brass) Valves
Low Pressure Tubular Valve
For low pressure water vessels, storage tanks, containers, etc., Glass-Trac provides Type OT Brass Valves for Tubular Gauges. The valves are made up with 5/8” O.D. Pyrex Red Line, High Pressure or Heavy Wall Glass from stock. Each valve contains a brass ball check which closes the valve in the event of glass breakage. Two guard rods are used. The lower valve also is fitted with a threaded drain cock. Type OT Brass Valves are suitable for working pressures up to 200 psig at or under 400ºF.
Tubular glasses are available in any length and should be cut 1½” shorter than valve center-to-center. Guard rods should be ¾” longer than the valve centerto- centers.
Visible length is 3” less than the valve centers.