Old Style Boiler Expansion Tank

The one in your picture looks relatively new.

Old style boiler expansion tank.

It has an air bleeder on the bottom. Amtrol extrol ex 15 boiler system expansion tank 2 gallons. Ratio of air to water inside the steel expansion tank hot water boiler expansion tanks. This article describes the steps in draining of a steel compression or expansion tank used on hot water system heating boilers hydronic heat.

I d like to replace this with a new bladder style tank due to a few pitted spots that look like they re about to spring a leak. However this system would often allow air to be dragged back into the closed loop system when the water cooled. So remaining life expectancy depending on quality may be 40 years. The ratio of water to the air inside the steel expansion tank is optimal at a 2 3rds water to 1 3 air.

Draining water out of a waterlogged expansion tank is a common heating boiler service procedure used to replace a lost air charge. The rest is easy unscrew the old one and put some kind of pipe dope or tape dope on the threads. Replacing old style expansion tank hi i have a 1 story ranch with a forced hot water boiler with an old ceiling mounted expansion tank. Great savings free delivery collection on many items.

I opened up the drain valve till water stopped flowing then turned the water feeder back on. See more like this. Tanks not equipped with a site glass need an airtrol fitting. This is the job of the expansion tank.

Keeps weeping off relief valve. By using the diaphragm style tank this problem is eliminated. In the old days plumbers would use a tank set up very similar to the overflow set up for a cars radiator. Located on the bottom of the expansion tank is a fitting.

Other than that the old non diaphragm type of boiler expansion tank is fine. The relief valve was just changed i m not familiar with this type of tank. The boiler expansion tank absorbs the expanding water by allowing the air in the expansion tank to compress this prevents the pressure from building and allows the boiler to heat and cool without too mush pressure building up. This air would cause corrosion.

Hot water heating system expansion tank compression tank drain procedure to re charge lost air. The tank will work fine until it rusts out provided that it is maintained. All components are original with system. Buy hvac boiler expansion tanks and get the best deals at the lowest prices on ebay.

Amtrol ex 90 extrol expansion tank. Steel expansion tanks and bladder expansion tanks. Old expansion tank i have a customer with an old in the ceiling expansion tank on his peerless boiler. In that it has to be drained as part of a maintenance scheduled.

The boiler expansion tank is a vital part of your boiler system. Only on the15. Boiler expansion tank problems can greatly affect your hot water system.