This is the 18 litre model. Grundfos steel pressure tanks are designed for use with water to a maximum of 90 degrees C and are ideally suited and approved for use with drinking water. Our tanks can of course be installed with any Grundfos (or other brand) pump, are suited to vertical installation and, are supplied with a non-toxic butyl rubber diaphragm dividing the tank chamber into two compartments. The upper compartment contains compressed atmospheric air. The lower compartment has a liner made from polypropylene and is filled with water from the pump. Maximum operating pressure is 1,000 kPa and the inlet/outlet is 25mm male BSP thread. 279mm diameter x 367mm high. Click here to download the specifications and dimensions.
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Like Julian fitted unit to a system which has a number of float valves in drinking troughs. Pump was starting and stopping /every 5 minutes. It now only starts after long intervals. Completely satisfied with service and timely delivery.
Purchased this unit for the purpose of fitting to a small constant pressure pump. Unit works very well in situation used. Eliminates cycling but still provides consistent pressure. Very happy with results. Should mention also that service provided by supplier was very efficient and friendly.