Diaphragm pumps are typically used in bulk chemical and fluid transfer. They handle a wide range of viscosities and fluids with high solids content. Diaphragm pumps are self-priming and have the ability to run dry without damage. Available in most metallurgies, polypropylene, Kynar®, Teflon®, and various elastomeric compounds Flows to 250 GPM - heads to 230 feet Materials available to handle high purity chemicals and sanitary applications Variable speed Air operated or electrically driven