Trine ss glass cocks are fabricated from solid bar stock in plug type design or needle type design with a drain cock in the lower arm. They are tested to 500 lbs hyd and used for measuring the level of liquid in chemical storage tanks. Plug type gauge glass cocks are fitted with a self-adjusting inverted taper plug having a quick closing device. Needle type gauge glass cocks are fitted with hand wheel operated needle valves.
