Rotolok have experience in supplying products with specific features and designs into applications that other valves cannot handle.
Rotary Valve features such as heavy duty rotors, abrasive resistant materials and tungsten carbide coated contact surfaces have all been successfully used to handle abrasive products such as Sand, Cement, Fly Ash, Aluminium Oxide, Rock and Mineral Dust.
Special bearings, materials of construction and machining to accommodate thermal expansion are readily available to suit high temperature applications up to 750C.
Increased sealing is available on 250mm (10″), 350mm (14″), 500mm (20″) & 600mm (24″) sized Rotary Valves / Rotary Airlocks with round ASA inlet flanges to cope with processes having up to 340psig internal pressure (strength tested up to 510psig). Note that the standard range of Rotolok ATEX Barrier Rotary Valves are regularly pressure tested to ensure integrity against 10 bar ST2 dust explosions.
The Rotolok Double Plug Airlock and Round Head Valves have been designed to particularly suit the handling of products such as sand and cement or other materials with similar characteristics.
If you have an arduous duty application then contact Rotolok who, if they haven’t already got one, are prepared and keen to work with you to find a solution.