Diaphragm valves are engineered to provide superior handling of difficult media such as corrosive fluids, abrasives and slurries. They can also be used for high purity and sanitary applications. The valve controls flow by varying the space between a stationary weir and a moveable flexible diaphragm. By compressing the diaphragm against the weir, all flow is shut off. The only wetted components are the lower half of the valve body and the diaphragm. The diaphragm's stroke adjustment feature allows precise "tweaking" of diaphragm movement for very precise flow control. A large, sure-grip handwheel makes it easy to open or close the valve, and a beacon-type indicator provides highly visible position indication at the top of the valve's rising stem. Rated to 150 PSI @ 70°F, non-shock. Additional diaphragms and materials available, contact us for quote.