Product Description

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.

Product Features

  • ½” NPT Male Tank Connection
  • 5/8” OD Tubular Glass Connection
  • Brass Ball Check
  • 5/8” OD Red Line Pyrex & Heavy Wall Glass Available
  • Two Carbon Steel Guard Rods

Product Specifications

  • ½” NPT Male Tank Connection
  • 5/8” OD Tubular Glass Connection
  • Rated for 200 PSI at or below 400F


100-00 Glass-Trac Liquid Level Gauges and Valves Catalog
Brochures, Product Line Brochure
130-01 Installation and Operating Instructions
Technical Documents
Glass Cutting Device