Fluidcheck diaphragm valves are manufactured to handle corrosive or hazardous fluids as well as air, water and normal liquid, gas and slurry flows. Toxic, inflammable, explosive, and bacterial substances are handled with ease and safety. In addition, odor, taste and color contamination of live contents are prevented through drip tight, glandless construction from entering into the atmosphere. Diaphragm valves can also be used as throttling devices. The weir type construction is the better throttling valve but with a limited range.