Potable Water Pressure Tank Sizing

Old pressure tank sizing method in the past pressure tanks were sized to store at least 1 or 2 gallons of water for every gallon per minute the pump can produce.

Potable water pressure tank sizing.

Make sure you have a tank size suited to your current plumbing system. A 10 gpm pump needed a pressure tank that holds 10 or 20 gallons. Our sizing guide for potable water expansion tanks helps you find the right watts regulator or data potable tank. Find out more by visiting our website.

Both the tank volume and the acceptance volume must be greater than the calculated volumes as indicated. It s important that the size of a tank is adequate for your. Installing a well tank that is too small will increase pump cycles which can reduce pump life resulting in a costly repair or replacement. Water pressure tanks store water that s pumped from a well and dispense water under pressure when you use faucets and other fixtures.

A 20 gpm pump needs a tank with 20 to 40 gallons of storage. Most private home well systems operate between 30 pounds per square inch psi and 50 psi. A pressure reducing valve should be installed on the supply when system pressure exceeds 80psi. This means that the pump shuts off at the higher 50 psi and turns back on to fill the pressure tank at 30 psi.

Sizing guide potable and hydronic systems potable water sizes 2 10 gallons working pressure 150 psi hydronic pmet series sizes 2 14 gallons working pressure 100 psi page 1 of 4 revised march 2013 aoseb55300 pmc 5 pmc or tw series 2255092 aoseb55300 indd 155092 aoseb55300 indd 1 33 19 13 11 54 am 19 13 11 54 am. To accommodate the thermal expansion required for higher temperature and or higher pressure systems multiple tanks may be used. Minimum runtime multiplying the flow rate by the minimum runtime of the pump will give you the drawdown capacity. Draw down capacity is the amount of water that is stored within the tank before the pressure is low enough to turn the pump back on.

Your flow rate is how many gallons per minute your pump produces. The outer shell is made of rugged steel while the inside is lined with polypropylene to prevent corrosion. To properly size your well pressure tank you need to know three things. Choosing the correct size well tank to fit your individual household needs is a critical process.