Shurflo Expansion Tank With Diaphram

The Shurflo accumulator tank is a bladder type pressure storage vessel and/or pulsation-dampening device designed to hold water under pressure. The accumulator tank provides additional water storage to assist the pump in meeting the total demand of water. It extends pressure switch controlled pump by reducing the pump on-off pulsation.

• Model 181-201. This is NOT recommended for SMART sensor pumps.
• The accumulator has 1/2 inch BSP female inlet and outlet.
• The difference between just the pulsation dampener and the accumulator/pulsation dampener is in the way they are made, and therefore operate. The pulsation dampener just relies on the water compressing the standard air pressure within the unit – without a diaphragm. The accumulators have the air inside under pressure in the start up stage, so in effect this gives a longer time (more water flow) between stop and start of pump for the same sized unit.