Diaphragm Valves – General Applications Diaphragm Valves consist of an elastomeric membrane that closes onto a saddle, weir or seat to provide bubble-tight closure. Some of the advantages of Diaphragm Valves include capability of in-line maintenance, bonnet isolation, no packing glands and a streamlined flow passage without recesses or pockets. The ability of the elastomeric membrane to close over solids entrained in liquid, makes it a good fit for applications where tight seal is required in process fluids that might contain solids or slurries. The membrane or diaphragm, body and body lining materials can be selected based on the process fluid for full chemical compatibility. Where Diaphragm Valves are used? Diaphragm valves are right choice for the following applications: ·          Chemical applications including Acids and Bases o    Hydrochloric Acid (HCl) o    Sulfuric Acid (H2SO4) o    Peracetic acid (C2H4O3) o    Sodium hypochlorite   (NaClO) o

The Diaphragm valves are primarily used in applications that require tight shut-off, accurate closure and is effective in gas, liquid, suspended solids and slurry applications. Diaphragm valve is also ideal for acidic, corrosive and abrasive applications with the proper materials and linings. What are Diaphragm Valves? Diaphragm Valves are glandless valves that consist of a valve body, a flexible elastomeric diaphragm, and a seat (Weir/Saddle/seat) upon which the diaphragm closes the valve. In addition, diaphragm valves provide an external seal, therefore all moving parts are fully isolated from the wetted parts and the media being conveyed. A fully functioning elastomeric diaphragm seals leak-tight against the valve body, completely isolating all the mechanical working parts of the valve’s operating mechanism from the fluid. This total separation between the media passing through the valve and the bonnet also eliminates troublesome stem seal and packing gl