|It is commonly used for visual level indication of liquids, which attack glass or are harzardus, flammable, toxic aggressive, agitated, contaminated and under high temperature & pressure i.e. for services, where glass gauges are unsafe.|
Rugged gland less constructiion to provide safety in handling toxic, flammable & highly corrosive liquid.
Construction & Operations:
It consists of a chamber and an internal float in non-magnetic material, compatitable with the liquid. The float containing a magnetic system rides on the liquid and is couples to an external visual indicator, which comes in two options. The simpler & economical design consist of a RED magnetic follower capsule, that moves within a glass tube filled with water ( To reduce friction) and can be read against a scale. THe other system is expensive and consists of a series of bicolour flappers. White on front side and contrasting RED on the reverse. These flappers rotate correspondng to floar movemetnt, thus changing their colour from WHITE to RED as the float rises and Vice-Versa when the float falls. As such the liquid level represented by an external RED column.