Rotolok India Chittur, Palakkad, Kerala

Manufactured in four basic sizes based on a 30 degree divert angle, the units are fabricated versions, allowing them to be tailor made, to suit specific duties and needs. The divert angles can be changed to suit the application and product, with also, the variation of inlet, outlet formats and flanges. The flexibility of our design, also allows heavier duty applications to suit your needs.

Four basic sizes based on a 30 degree divert angle, the units are fabricated versions, allowing them to be tailor made, to suit specific duties and needs. The divert angles can be changed to suit the application and product, with also, the variation of inlet, outlet formats and flanges. The flexibility of our design, also allows heavier duty applications to suit your needs.

Suitable for discharge dry dust, powder, granules and fibrous materials from cyclones, filters, hoppers etc., whilst maintaining an effective airlock. The valve consists of two flaps connected by counterweights or spring loaded spindles, which are operated by means of a motor driven cam. The cam alternately opens each flap allowing materials to pass through the separate chambers in batch form and thereby ensuring an airlock. After cam release, the counterweights (or springs), return each flap to the upper (sealed) position and are designed and sized so that a clapping action at the flaps is obtained, aiding material flow and preventing build up at the seal plate. The unit is suitable for pressure differentials of up to 500mm W.G. This can be increased with special features. A fabricated steel body caters for sizes and specials that fall outside the standard 150, 200, 250 and 300mm cast iron body range as well as offering stainless steel construction. Optional hardened steel flaps and inlets can help prolong the valve life in particularly arduous or abrasive applications.