Forty years of product knowledge brings you the best the market has to offer! Quest-Tec Solutions is a young company with a long lineage of quality, experience and care. The development and engineering of the liquid level gage and valve product lines began more than forty years ago.

Tubular Gages & Valves

Glass-Trac Tubular Glass Gages are available in any length desired and can be fitted with Type 1T or 2T Gage Valves (see Page 18). These gages provide 360º visibility of the liquid level through strong, clear glass. Tubular glass is used in three types: Red Line, High Pressure and Heavy Wall. Pressure ratings are different for each type and also depend upon glass length (see next page). If glass breakage occurs, a stainless
steel ball check shuts off each valve. Glass tubes should be cut 1½” shorter than valve center-to-center. The resulting visible glass length is 5” less than the valve center-to-center.

Red Line glass provides a bright crimson stripe against a narrow white strip throughout the length of the tube. Liquid levels are easy to see against this special optical effect. The glass is heat-resistant and ends are fire polished. Red Line is
available in both ⅝” and ¾” O.D.

High Pressure glass is a versatile, medium-strong type of tube used in many applications. It is crystal clear and ends are fire polished.

Heavy Wall glass has the highest pressure rating of all tubular glass. It is extremely clear, corrosion resistant, will not scratch easily and is extra resistant to heat shock. Ends are ground. Four carbon steel guard rods and two guard rod rings are used to protect tubular glass gages. The rods are anchored in each ring which is fastened to the valve behind the union nut. Rods should be cut 1¾” shorter than valve center-to-center. A transparent plastic sheath also is available to clamp around the glass tube. Sheath length should be 4 ⅜” shorter than valve center-to-center. Also available is an expanded metal gage glass protector for additional protection of the glass. Specify gage valve center-to-center for proper sizing of this assembly.

NOTE: Type 1T 4000 psi Tubular Valve and Type 2T 4000 psi Tubular Valve shown on page 15.

(Brass)

½” NPT Male Tank Connection
⅝” O.D. Tubular Glass Gage Connection

For low pressure water vessels, storage tanks, containers, etc., Glass-Trac provides Type OT Brass Valves for Tubular Gages. 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 center-
to-centers.

Visible length is 3” less than the valve centers.

Type 1T & 2T

Glass-Trac Offset Tubular Gage 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.

4000 psig CWP 6000 psig Test
¾” NPT Male Union Tank Connection
⅝”O.D. Tubular Glass Gage Connection
½” NPT Female Drain Connection