The Cla-Val Series PV15 High-Pressure Open Body Pinch Valves provide simple means to manually control the flow of abrasive and corrosive slurries, liquids and solids. The valve operates by turning the handwheel clockwise to close, counter-clockwise to open like a gate valve, but unlike a gate valve, the PV15  series valve has no sliding or rubbing metal surfaces to wear out – the sleeve is merely squeezed to the desired open or closed position. As a standard sleeve material, pure gum rubber with reinforced polyester fabric is used for the highest strength and longer-lasting cycle life.