Chemical and industrial engineers supplies wide range of sight flow indicators and sight glasses. The general types are double window, full view and inspection glasses. For specialized use to suit various fluids and flow characteristics they are made in models such as plain type, drip type, flapper type, rotating wheel type and angle type. They are rigid in construction and corrosion resistant. Toughened glasses are thermal shock tested as per bs-3463/1962. Process borosilicate glasses are stress relieved to undertake piping strain and avoid breakage. Sight glasses are offered for a working pressure of 200 kg/cm2 and a temperature of 400°c in materials such as cs, ci, brass gm, ss-304/316, alloy-20, pvc, hdp, etc, for highly corrosive application. Sight flow indicators are manufactured with rubber, lead or teflon lining. Glass cleaning arrangement is provided as optional feature.
