HDM heavy duty modular rotary valves and BSM blowing seals Recently developed HDM Rotary and BSM Blowing seal valves have been designed using finite element analysis to make the housing even more robust. Where the valve feeds directly into a conveying line, the BSM range has been designed to optimise product conveying using computational fluid dynamics techniques. HDM Rotary valve with chain drive A new casting pouring method has been used to improve the external finish of the valves and standard, cleanable and fast clean versions use just one body configuration. With frequent spares requests for valves over 30 years old, our rotary valves and blowing seals have already gained a superb reputation for reliable long service life. Typical applications • Metering device, airlock, explosion containment, flame barrier and system isolation • • BSM Blowing seal with direct drive Suitable for gravity, positive pressure and vacuum conveying systems Powders, granules, pellets, grain, feed and chips Can be adapted for virtually all types of product characteristics Over 15,000 different configurations that can be adapted to suit virtually all applications Bespoke versions and sizes Valve housings are individually pressure tested for 10 bar(g) explosion and flame containment requirements HDM Rotary valve with direct drive Backed up by 90 years collective applications experience

Specifications Size Round or square, special flange configurations available Cast iron, aluminium or stainless steel, special material grades available SEW chain or direct drive as standard Polished, wear-resist hard chrome or tungsten carbide, non stick PTFE Full range of dust and gas zones - 10 bar(g) fully autonomous versions Rota Val Ltd Bumpers Way Bumpers Farm Industrial Estate UK - Chippenham, Wiltshire, England SN14 6LH T +44 12 49 65 11 38 F +44 12 49 46 20 54 [email protected] www.rotaval.co.uk