Fibreglass Water Tank Sizing Guide
The Water Tank Sizing Guide below is designed to help you estimate the correct water tank size. Depending on your application there may be other points to consider, you can contact our team at boosters@pumpsukltd.co.uk for advice.
Once a flow rate has been calculated for the booster set, we need to consider the size of the break tank. A simple calculation can be used to gauge adequate capacity.
An element of diversity needs to be taken when calculating this figure as some systems will only run at full flow for a few minutes and the cold water feed may be of a size to keep up with the outgoing flow. This can result in the storage time being reduced and a smaller tank would be selected.
Water Tank Sizing Graph
Another consideration is the category of the air gap required in the tank. This is to prevent a backflow that could cause contaminated water to flow back into the domestic mains water system.
Backflow contamination prevention is achieved in a break tank by correctly positioning the ball valve and overflow arrangement.
All PUK (Pumps UK Ltd) break tanks are fitted as standard with an AB air gap and are suitable for all categories of use.
AA – Air Gap with Pipe Overflow
A non-mechanical backflow prevention arrangement of water fittings where water is discharged through an air gap into a break tank with an unrestricted piped overflow.
AB – Air Gap with Weir Overflow
A non-mechanical backflow prevention arrangement of water fittings complying with Type AA, except the air gap is the vertical distance from the lowest point of ball valve. A correctly sized spillover weir is fitted to overflow water before the air gap is compromised.
All PUK (Pumps UK Ltd) break tanks are fitted as standard with an AB air gap and are suitable for all categories of use.
The PUK pump range is available through our dealer network, our service and installation team or our online store.
VARI BOOST
Small Domestic
0 – 2 l/s Flow
0 – 8 Bar Pressure
We designed the PUK VARI BOOST booster pump as a great solution for smaller domestic and commercial systems with hot and cold supply pipes. The PUK VARI BOOST is ideally suited for systems with un-vented cylinder, high resistance and flow bathroom fittings.
VARI TWIN
Small Commercial
0 – 4 l/s Flow
0 – 8 Bar Pressure
We designed the PUK VARI TWIN booster pump as an upgraded PUK VARI BOOST with an extra pump for increased performance and reliability. It is suitable for smaller domestic and commercial systems with hot and cold supply pipes and systems with un-vented cylinders.
VARI COM
Commercial Use
2.2 – 18 l/s Flow
0 – 10 Bar Pressure
We engineered the PUK VARI COM booster pump to be the mainstay of our product range. It is a high-quality cold water booster set that is designed as a cost-effective solution for commercial applications such as hotels, offices and large residential properties.
VARI TANK
Domestic & Commercial
0 – 4 l/s Flow
0 – 8 Bar Pressure
The PUK VARI TANK cold water booster pump has been designed as a cost-effective solution for domestic and commercial applications such as hotels, offices and large residential properties where space is limited requiring a combined tank & pump.
