Slurry valves are designed for both high and low cycle rates. Slurries may vary a great deal in density, particle size and hardness, corrosiveness and many other factors. Copeland has ball valves for all of these.
Copeland's BVC Series, high cycle valves that are cost effective but utilize stainless metal seats overlayed with Copeland's in-house applied line of HVOF and Plasma overlays. These coatings have gained wide acceptance because of their success in preventing wear and errosion in silica (sand) applications, superheated steam and acid applications. The ball is allowed to "float" between the seats but only a few thousandths of an inch protecting the valve against lock-ups when materials enter the body cavity and become packed inside.
All products by IPL are backed with a Manufacturers Guarantee as standard.