Amtrol Bladder Expansion Tank

Amtrol thermal expansion tanks are engineered to control pressure build up in closed potable water systems.

Amtrol bladder expansion tank.

Amtrol makes both thermal expansion tanks and hydronic expansion tanks used on heating and plumbing systems. We offer a wide selection of therm x trol and well x trol expansion tanks to suit all of your plumbing and heating needs. Available in diaphragm partial acceptance bladder and full acceptance bladder designs these tanks range in size from 2 gallons 7 6 liters to 528 gallons 2 000 liters. To determine the size needed for your system use the expansion tank size calculator located here.

Armstrong expansion tanks are designed to reduce tank sizes by up to 80 over standard designs. Expansion tanks have capacities ranging from 2 gallons to several hundred gallons. The extrol hydro pneumatic tank is available in diaphragm full acceptance heavy duty butyl bladder and partial acceptance bladder designs in a broad range of sizes from 8 gallons 30 liters to 3963 gallons 15 000 liters. Expansion tanks use compressed air to maintain system pressures by accepting and expelling the changing volume of water as it heats and cools.

The photo at left shows a modern extrol r bladder type heating system expansion tank mounted above the heating water line. Available in diaphragm partial acceptance bladder and full acceptance bladder designs these tanks range in size from 8 gallons 30 liters to 3 963 gallons 15 000 liters. Amtrol 50 lbc 125psi extrol bladder tank lbc models. Asme tanks meet section viii division 1 standards.

Amtrol s expansion tank installation instructions specify install the extrol on the supply side of the boiler on the suction side of the heating circulator s see figure 1 that is the location is more critical than the distance. Therm x trol expansion tanks are designed to control pressure in commercial closed potable hot water systems. Typically the internal bladder in this type of expansion tank is made of butyl rubber and accepts water from the hot water heating system.