'/%3E%3C/svg%3E)
 --%3E %3Csvg version='1.1' id='Fill' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23F15C02' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
 --%3E %3Csvg version='1.1' id='Half' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cg%3E %3Cpath fill='%23F15C02' d='M30.05,70.23l3.79-12.01L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1h1.58 L93.71,7.18c-3.58-3.82-8.66-6.23-14.28-6.23H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,5.41,2.22,10.32,5.79,13.88 L30.05,70.23z'/%3E %3C/g%3E %3Cpath fill='%23FBC8B4' d='M93.71,7.18L60.98,39.6H91.2L65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82l5.55-17.59L6.75,93.32 c3.55,3.54,8.44,5.73,13.82,5.73h58.87c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,15.4,97.01,10.69,93.71,7.18z'/%3E %3C/svg%3E){kind=small}
MANUALS (2)
Product Highlights
Description
Specs
| Application: | Plumbing |
|---|---|
| Tank Volume: | 2 Gallons |
| Max Accept. Factor: | 0.45 |
| Connection Size: | 3/4" |
| Max Pressure (PSI): | 150 |
| Temperature Range (F): | 200°F MAX |
| Connection Type: | Threaded |
| Height: | 12-5/8" |
| Diameter (Inches): | 8" |
| Warranty: | 1 Year |
| Weight (lbs): | 5 lbs |
Questions?
Compare Similar Products
You May Also Need
Product Reviews
Most Liked Positive Review
need a strong arm
Most Liked Negative Review
 --%3E %3Csvg version='1.1' id='With-RB' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23FBC8B4' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
1st Tank only lasted 3 years
Always a great expansion tank to get the job done!
Exactly what I needed
Therm-x-span T5 are Superior
I would buy this product again ..!!
Just what I needed
Good Quality Expansion Tank
Expansion Tank
Excellent ordering and delivery
Poor warranty
Great Product!
Product Q&A
10 QuestionsQ: What is the difference between the ST-5 and the T-5?
Asked by MacGyver 9 years ago
Add your answer
Verified Reply- SupplyHouse StaffTherm-X-Trol valves have a longer warranty (five years rather than one year) and are made in the United States.
Q: What's the difference between Therm-X-Span and Therm-X-Trol?
Asked by Jim 12 years ago
Add your answer
Verified Reply- SupplyHouse StaffTherm-X-Trol valves have a longer warranty (five years rather than one year) and are made in the United States.
Q: WHAT IS THE DIFFERENCE BETWEEN A T5 AND A T12
Asked by marty 14 years ago
Add your answer
Verified Reply- PexSupply StaffThe T-12 is a larger expansion tank and should be used on bigger systems.
A T12 is next size up.Therm -expansion tank of 12 gallons
I figured it out. The T 12 is 4.4 gal expansion tank vs. the T5 which is a 2 gal tank. Jim This message contains information that may be confidential and privileged, and is intended only for the designated recipient(s). If you receive this message in error, please advise the sender by reply e-mail and delete the message. Thank you.
Q: when this tank is purchased does it come already pressurized or does the pressure have to be done at time of installationa dn how much should it be?
Asked by Caz 14 years ago
Add your answer
Verified Reply- PexSupply StaffThe tank's pressure should match the pressure in your system. This tank comes pre-pressurized to 40 psi.
Already pressurized. Sent from my iPad
This tank comes pressurized.
Tank is should be already pressurized to suite city pressure of approx 65 lb.John
The tank does have a preset pressure from the factory, 45 psi if memory serves, but please check the instruction sheet. The pressure still needs to be adjusted to equal the setting of the water pressure regulator (pressure reducing valve). The idea is not to have strain on the tank membrane under normal conditions. If there's no PRV in the line, the setting has to be equal to the supply pressure, but it can only work if that pressure is below 60 psi because 60 psi is the maximum allowed for the tank. To adjust the tank pressure, you only need a tire pump and a tire gauge.
Precharge = 20PSI Desired charge = water pressure in building up to a max of 80PSI See: http://video.answers.com/how-to-adjust-the-pre-charge-of-a-thermal-expansion -tank-165209307 for the procedure.
The tank does come with a little pressure, but here is what you need to do: 1. Measure the water pressure in the house. Typically from 35 to 80 psi (if it is more than 80 you should install a pressure regulator) 2. Use a bicycle pump to pump the pressure of the tank to match the water pressure. You do NOT need to install the tank before you do this. Try not to use a standard compressor as it often has oil in the air. The oil will not come in contact with the drinking water, but it can deteriorate the membrane. 3. Install the tank and you are in business. Hope this helps. Jim
Q: Hoe much pressure is the T2 tank suppose to be under? WIll lack of pressure cause water pipe noises? Is normal compressed air ok?
Asked by charlotte 15 years ago
Add your answer
Verified Reply- PexSupply StaffProper tank pressure depends on the pressure in your system. This tank comes pre-charged at 40psi. You can change the pressure with normal compressed air. Lack of pressure in the tank can cause noise in the pipes (as can an undersized tank).
I am sure that you already have an answer to this, but here goes: 1. measure your water pressure and that is the pressure that you should pump the tank to. 2. Yes 3. Yes although it should not have oil in it (as some do)
Q: What is the difference between models T-5 and ST-5 ?.
Asked by Bob 15 years ago
Add your answer
Verified Reply- PexSupply StaffThe ST is made in the USA and the T is made overseas.
Q: Is this unit under pressure?
Asked by 15 years ago
Add your answer
Verified Reply- PexSupply StaffYes, all Amtrol expansion tanks are under pressure.
Q: where in the system is this product installed.
Asked by 16 years ago
Add your answer
Verified Reply- PexSupply StaffPlease see page 2 of this document: http://www.amtrol.com/pdf/MC4090%2007_10TXTBrochure.pdf
Q: what is the correct orientation for installing the tank? The installing plumber put our's horizontal and another plumber working on another issue later said this was incorrect.
Asked by Would like to know 16 years ago
Add your answer
Verified Reply- PexSupply StaffThis tank should be installed vertically.
Q: how big of a water heater does this model work with. ex. 55 gallon tank?
Asked by cozmodo 16 years ago
Add your answer
Verified Reply- PexSupply StaffThis unit can work with a water heater as large as 80 gallons.