Model EX-30

Internet #202268962

Store SKU #748507

No. 30 Expansion Tank for Hydronic/Boiler

$41.35 /each

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Product Overview

The EXTROL no. 30 Expansion Tank is pre-pressurized and features a diaphragm design. This expansion tank is designed for use with a hydronic heating system. It accepts expanded water as system temperature rises to reduce pressure build up.

  • Factory pre-charge: 12psig
  • Maximum working pressure: 100 psig
  • Maximum operating temperature: 240°
  • Water tight reservoir for expanded water

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Warranty / Certifications

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Customer Questions & Answers

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Customer Questions & Answers

No. 30 Expansion Tank for Hydronic/Boiler
No. 30 Expansion Tank for Hydronic/Boiler

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May 16, 2016
NO it does not.
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Customer Reviews

Rated 4.4 out of 5 by 9 reviewers.
Rated 5.0 out of 5.0 by Exactly the same as original that I got 15 years out of. Turn off your hot water boiler so the water in the lines isn't scalding hot and cut off the flow of water to the old tank. Then when it's cooled down, unscrew the old tank. Make sure you have something handy like a towel or bucket to catch the extra water in the pipe or be prepared to get a little wet. The old tank will probable be filled with water and be A LOT heavier than you expect. BE CAREFUL IT'S VERY HEAVY! Use some thread tape on the new tank to help seal out leaks. Once you have the old one off, screw the new one on nice and tight. Open the valve(s) to let the water flow into the new tank and turn on the boiler. DONE! February 17, 2015
Rated 5.0 out of 5.0 by Good price! My repair man told me this part would cost me $117 not including labor ($80 and hour) to install. And while you can probably buy this somewhere for that price, home depot sells it for under $40 dollars (on line only - in store costs a lot more). To install - you just carefully unscrew the old one and set it aside. (It will drip, so use a towel or have something to put it in). Then use plumbers tape to wrap the threads and screw the new one on the pipe. Free shipping to my local store. Easy pick up. January 6, 2015
Rated 4.0 out of 5.0 by The new expansion tank solved my pressure problem. I was having uncontrolled pressure swings on my hot water heating system. Pressure would go to over 30 psi and lift the relief valve. Pressure would drop to 10 psi and shut the my heating system down. Ran out of things to check. Could not tell if the pressure tank had a ruptured bladder but the symtoms were there. Replaced the tank. My old tank was full of water which causes heating system pressure to fluctuate more than the desired 4 psi. It was only 7 years old. The new tank works fine. My heating system finally works without the constant fill and drain to control the pressure. April 16, 2013
Rated 5.0 out of 5.0 by High quality for excellent price. Great buy for the buck. Quality product. Most x-trol tanks are rated to only 200 degrees and this one is good to 220 degrees which my furnace can reach. February 26, 2015
Rated 4.0 out of 5.0 by Boiler expanion tank Easy to install. Fast delivery time shorted than expected.Quality seems adequate. February 5, 2015
Rated 5.0 out of 5.0 by Exact replacement of existing tank This AMTROL tank is identical to the expansion tank that has been in my system for about 20 years. When tthe boiler pressure relief valve started sporadically releasing water, I wanted to replace the tank with something as dependable, and made in the USA- this is both. Installation was simple. January 5, 2014
Rated 2.0 out of 5.0 by Product Didnt Last! After 2 years had to replace AGAIN Wish there was another choice in manufacturer of this product! Hmm guess thats why it was only had a 1 year warrenty. Really? March 30, 2014
Rated 5.0 out of 5.0 by Easy to install as replacement expansion tank. Expansion tank was easy to install, replaced old tank in minutes. January 26, 2014
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