SINGLE DIAPHRAGM PRESSURE TANK - PTB 160

Diaphragm tanks are commonly used on the discharge manifold to provide water storage for the system in very low flow situations. It decreases the running time of the booster pumps, thereby making the system more energy effective. An advantage of bladder pressure tanks is that they typically last longer than diaphragm pressure tanks, since they don't have a diaphragm that can fail. An important thing to remember, the higher the operating pressure – the larger the tank must be. Pressure and tank size have a direct correlation – as one increases, so does the other. The disadvantage may be the need to check the overpressure in the vessel regularly, due to the possibility of air leakage. In the event of a leak, the air in the vessel would be reduced , which would switch the pump more often and more water would flow into the bladder. This would create a risk of the bladder tearing.