Pressure Tanks

The pressure tank stores water from a pressure system.  Conventional pressure tanks common in the Philippines are made from gauge 15 or 16 galvanized iron or stainless steel.  They require constant air cushion for proper operation of the pressurized system.  Diaphragm or membrane type pressure tanks differ from conventional pressure tanks in that they utilize membranes to physically separate water from air inside the tank.  Pressure is stored in the water tank due to the air volume "pushing" at the water volume.