Can Expansion Tank Be Installed Upside Down

Expansion tank: which side up? To edit your profile, click on the gear. The Wall has a powerful search engine that will go all the way back to 2. Oct 13, 2009 That is, on my boiler, the pipe fitting is on the bottom of the expansion tank and the air valve (looks like a tire air valve is on the top. Some websites. Vdo Cdr 2005 Keygen. We recently had a hot water tank expansion tank installed on the cold pipe coming into the hot water heater.This expansion tank is mounted upside down, t.

INSTALLATION AND SUPPORT OF EXPANSION TANKS - PART 1 of 2: (Presented in 2 parts due to length restrictions of the forum.) After doing much research in the past on water heater expansion tank installations, I'd like to share some installation procedures that might be helpful to DIY'ers who want to install one. Some procedures that I thought of are not posted anywhere else that I could find so be aware they are just my own thoughts so use them at your own discretion. Any comments or corrections are welcome. WHY DO I NEED A WATER HEATER THERMAL EXPANSION TANK? ------------------------------------------------------------------------ See this link for an explanation: WHERE TO INSTALL, AND THE ORIENTATION OF THE TANK: ------------------------------------------------------------------ Expansion tanks can be installed anywhere in the plumbing system but that is providing that there is no shut off valve between the expansion tank and the water heater. IOW, when the shut off valve is closed, the expansion tank can still absorb excess pressure created by heating water in the heater.

Some residential expansion tanks will say that they should be installed in a hanging vertical position. But from my research, they can be installed in any orientation.

Here's one website that confirms this observation: The instructions that come with the Watts DET line of expansion tanks say that they can be installed horizontally, or vertically with the water connection on top or on the bottom of the tank. WHAT KIND OF CONNECTION DOES AN EXPANSION TANK HAVE? Essentials Of Statistics For Business And Economics 11th Edition there. ------------------------------------------------------------------------ The Watts DET-12 expansion tank has a 3/4' threaded male fitting. I believe that most if not all residential water heater expansion tanks will have this type of connection.

WHAT KIND OF EXPANSION TANK TO BUY? ------------------------------------------------ For use in a residential plumbing system, be sure to buy an expansion tank that's rated for 'potable' water systems. There are expansion tanks for 'non-potable' systems and I don't think folks would want to drink water from systems with a non-potable rated expansion tank. END OF PART 1.

INSTALLATION AND SUPPORT OF EXPANSION TANKS - PART 2 of 2: SUPPORTING THE EXPANSION TANK: ----------------------------------------- This is the major point of this post. Support of expansion tanks is not covered in enough detail in my opinion. Here's why: A new Watts DET-12, 4.5 gallon expansion tank weighs 7.8 lbs.

When it's installed and working properly, some water will enter the tank but the weight will not be too excessive. However, when (not if) the internal bladder of any expansion tank fails, water can fill the tank. Water weighs about 8.34 lbs per gallon.

A 4.5 gallon expansion tank will weigh 37.5 lbs + 7.8 lbs = 45.3 lbs. A 5 gallon expansion tank full of water including the weight of the tank itself will weigh 49.5 lbs. So support of an expansion tank is so very important!

VERTICAL HANGING INSTALLATION: Just hanging a 5 gallon expansion tank from a soldered 'T' fitting will be exerting about 50 lbs on the soldered connections if/when the tank fails. With the constant expansion and contraction of the pipes, fittings and solder joints because of cold water and heated water and a 50 lb weight, I believe the solder joints could fail dropping the tank and causing major flooding.

VERTICAL OVER THE COLD WATER INPUT PIPE INSTALLATION: I've seen installations that place the expansion tank directly above the cold water input to the water heater with no other support. (See picture below) Now if the 5 gallon expansion tank gets full of water, there will be 50 lbs of weight stressing the copper pipes and fittings while they expand and contract many times a day due to cooling and heating. This could cause leaks.