Wärtsilä subsidiary, Shipham Valves, completes development of a range of composite single plate wafer check valves. The new valves will be introduced to the market place at the Valve World Exhibition to be held in Düsseldorf at the end of November. Available in sizes from 3” – 12” / DN80 – DN300 and rated at 16 bar (230psi), the single plate Wafer Check Valve adds to Shipham Valves existing range of composite valves. The latest range is a compact, lightweight, fully non-metallic valve and comprises only two components - the body and the disc.