Flameproof Electric Flow Indicator

The Bamford Ajax XP series of Flameproof Electric Flow Indicators are a proven generation of ruggedly constructed devices for automatic control and reliable protection of plant and machinery in hazardous areas. The units can be mounted in horizontal, vertically upward or downward attitudes. The functionally designed enclosure is standard on all models to meet the arduous conditions experienced in the petro-chemical, offshore, and mining industries. The certified enclosure is available with one or two cable entries for fitting with approved glands and contains a precision snap-action microswitch of the single pole, double throw type. However, one or two microswitches with silver plated noble metal contacts may be fitted to provide versatility of switching circuits, which may be factory set or field adjustable. The flow indicator is specifically designed to warn instantly of a failure or change of flow in a liquid system. Based on simple principles, the flow induced movement of a hinged flap is converted by eccentrically mounted bearings into a rocking motion of a vertical rod, which, pivoted about a special double seal, operates at its upper end the adjustable microswitch, or switches. The materials of construction cater for the majority of liquids, with the toughened glass viewing windows offering a visual indication of flow.