Diaphragm valves are bi-directional, on-off throttle valves. They are used to control fluid flow by regulating the area with which media can enter and exit. We offer a wide range of Diaphragm valves Valves in various materials including Brass, Stainless Steel and Carbon Steel . You can choose any type of Diaphragm valve you require as all Diaphragm valves are available in all end connectiontypes and sizes.