Glass-Trac Offset Tubular Gauge Valves are identical to Type 1 and 2 S and U Valves except they are fitted with the ⅝” O.D. tubular glass connection. The Type 2T Valve also can be furnished in the coarse thread design and with quick-operating lever for remote operation by chain. Both valves have a molded Teflon packing ring and rubber glass gaskets as standard for services up to 250º F. For temperatures to 425º F, valves have wire-graphite packing and Viton® glass gaskets. In the event of tubular glass breakage, a stainless steel ball check closes the valve to prevent further loss of fluid.