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MANUALS (4)
Product Highlights
Description
**Note: The HydroClaw Expansion Tank Support Bracket provides a safe and reliable option if you prefer to mount your expansion tank. This expansion tank bracket is easy to install and will hold any tank with a diameter of 11" nominal.
The Amtrol EX30 EXTROL Expansion Tank is designed to be installed in residential and commercial applications and it factory pre-charged to 12 PSIG. Though this expansion tank can be mounted horizontally this can cause a decrease in the products life.
Features:
- For use with closed hydronic heating and cooling systems
- Factory pre-charged to 12 psig
- Pre-charge should be adjusted to equal minimum operating pressure at tank location
- Accepts expanded water as system temperature rises to reduce pressure build-up.
- System connection sets the point of no pressure change
- Water-tight reservoir for expanded water
- Sealed air cushion - factory pre-charged and 100% tested
- Deep-drawn steel tank
- Air stem for pre-charge adjustment
Specs
| Warranty: | 7 Year |
|---|---|
| Tank Volume: | 4.4 Gallons |
| Application: | Heating |
| Diameter (Inches): | 11" |
| Height (Inches): | 15.5" |
| Max Accepted Volume: | 2.5 Gallons |
| Max Pressure (PSI): | 100 |
| Thread Type: | Male |
| Max Temp (F): | 240°F |
| Precharged PSI: | 12 psi |
| Thread Size: | 1/2" |
Questions?
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Product Reviews
Most Liked Positive Review
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Quick and easy.
Most Liked Negative Review
good item
The industry standard.
I would buy this product again.
Absolutely
Great product
Expansion tank
Almost 5 Year Lifespan
Would buy this again
I will buy it again when this new expansion tank fails
I would buy again
Would buy this again
Product Q&A
37 QuestionsQ: I currently have a 70 gallon water tank and an Extrol #15. Will the #30 replace and should i use the larger size? This is the seocond one that has rusted out in 4 years. Any reasons why they are rusting out?
Asked by Bob 15 years ago
Add your answer
Verified Reply- PexSupply StaffThis expansion tank is only designed to be used on closed heating systems (those that are closed to the atmosphere at all points). Open heating systems or plumbing systems will cause these these types of expansion tanks to rust. Perhaps that is the issue.
Q: I have weil-McCain furnace btu/hr 7000 or btu/hr 5500 net 1=b=are input 7000 what kind and size I need to buy my expention tank.
Asked by jamnaaz 15 years ago
Add your answer
Verified Reply- PexSupply StaffWe recommend a #15 expansion tank for a boiler rated at 7,000 BTU/hr.
Q: my tank says " for expansion in a hydronic heating system". Is this the same tank? Model number 30
Asked by 15 years ago
Add your answer
Verified Reply- PexSupply StaffYes, this is a #30 tank that is designed for hydronic heating systems.
Q: Is this tank compatible with ethylene glycol?
Asked by Packrat 15 years ago
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Verified Reply- PexSupply StaffThis tank is compatible with ethylene glycol, as per the manufacturer.
Q: my extrol #30 tank is making a noise. It sounds like air is in the pipes. what is the remedy?
Asked by Art 15 years ago
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Verified Reply- PexSupply StaffAccording to the manufacturer, you should check the air vents to make sure they are working properly. If there is air in the pipes, you need to bleed the air out.
Q: i live in asingle wide trailer only haver 16 in. under a 20 gal.whirlpool.110 volt water heater .water heats up hot goesout.do irealy need an expantion tank?
Asked by chet 15 years ago
Add your answer
Verified Reply- PexSupply StaffYou will need an expansion tank if there is a back flow preventer installed on the system.
Q: Is it necessary to install the tank under an air scoop with air eliminator? I have an air eliminator on another part of the system (actually more than one) and don't really have room to mount this tank in-line with the air-scoop-eliminator fitting (which costs more than the tank), but rather on a dead-end pipe(despite mfgr's suggestion to the contrary). Any foreseeable problems? (I'm replacing a 30 gal plain steel ceiling-mounted tank).
Asked by garbid 15 years ago
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Verified Reply- PexSupply StaffNo, you do not have to install the expansion tank under the air scoop/air eliminator.
No its not necessary to install it under an air scoop or eliminator. Its just a convenient place to put it instead of branching off somewhere. The farther the tank is from your system the less it absorbs the shock.
Q: So, no water should come out of the bottom valve when pushed because this is the air bladder?
Asked by kcuhc 15 years ago
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Verified Reply- PexSupply StaffYou are correct: water is blocked from this valve by the bladder.
Q: Hi I have a hot water heating system there is an over size expansion tank installed on the system. I would like to know if I can replace it with this tank. Thanks
Asked by 15 years ago
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Verified Reply- PexSupply StaffYes, you can use this tank.
Q: I have a cgm-4 weil mclain boiler. On start up, the pressure is set at about 12 lbs. in system. When system reach is temp. of 190 degrees, its about 17 lbs. I know expansion tank is set at 12 lbs and relief is set at 30 lbs. Is this normal for a hot water boiler? Thanks
Asked by bill 16 years ago
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Verified Reply- PexSupply StaffYes, this is normal. Remember that as you heat up the water, the water will expand in the system, so your pressure will increase as well.