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Internet #204079272

Model #XT-18

Store SO SKU #1000831963

18 l Lead-Free Potable Water Thermal Expansion Tank

$10967
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  • Used for thermal expansion protection in residential applications
  • Features a stainless steel connection to resist corrosion
  • Field adjustable pre-charge allows for easy maintenance
  • View More Details

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Price:
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Product Overview

The 4.8 gallon XT-18 Thermal Expansion Tank is utilized on potable water lines between the backflow preventer or pressure reducing valve and the water heater for protection against water thermal expansion in residential applications. As the system pressure increases, water enters the polypropylene-lined water chamber of the tank, expanding a diaphragm into a pre-charged air chamber to keep the system pressure below the relief valve setting. Materials include a carbon steel shell with an epoxy finished coating, and corrosion-resistant stainless steel connection with a polypropylene liner and Butyl rubber diaphragm.
  • Pre-charge is field adjustable for convenient maintenance
  • Carbon steel shell with polypropylene liner ensures long-lasting construction
  • Diaphragm style tank is ideal for thermal expansion protection in residential applications
  • Stainless steel connection resists corrosion
  • Low-lead law compliant
  • IAPMO Listed
  • Water Quality Association - Certified to NSF/ANSI 61 & 372
  • Water chamber is polypropylene lined
  • Diaphragm is made of butyl rubber
  • Easy to install
  • California residents

Info & Guides

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Specifications

Dimensions

Product Depth (in.)
11 in
Product Height (in.)
10.5 in
Product Width (in.)
11 in

Details

Application
Potable Water
Compatible Brand/Model
Zurn Industries
Finish Family
White
Material
Carbon Steel
Nominal Tank Capacity (gallons)
5 gal
Pack Size
1
Product Weight (lb.)
10 lb
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
All goods sold hereunder are warranted to be free from defects in material and factory workmanship for a period on one year from date of purchase.

Questions & Answers

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Customer Reviews

  • 5
    out of 3 reviews
  • 100% recommend this product
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Showing 1-3 of 3 reviews
Was how the vender data described it. Appears to be a good tank - made well.
Was how the vender data described it. Appears to be a good tank - made well.
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  • Verified Purchase
  • Recommended
Solves thermal expansion pressure problems & is code required. I once lived in a community where...
Solves thermal expansion pressure problems & is code required. I once lived in a community where the simple water system consisted of a water tank on the top of a hill. If one was near the top of the hill, a pump was required to take a decent shower; if one was at the bottom of the hill, like me, the line pressure varied from 150 to 180 psi depending on how deep the water was in the tank. Modern plumbing systems are designed for 40-60 psi, so every body at the bottom of the hill had pressure regulators. Pressure regulators are also check valves - water can't flow back thru them. So if everybody takes a hot shower in the morning & heads off to work & school, the water heater heats cold water, expanding it & completely defeating the pressure regulators purpose. This thermal expansion tank solves that problem. It has a bladder in it that fails eventually, but my experience with the Zurn-Wilkins is that they last a long time & I'm a happy user.
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  • Verified Purchase
  • Recommended
3 people found this helpful
My old tank was 10 years old and looked...
My old tank was 10 years old and looked a little different from the new one ,I was concerned it wouldn’t fit but it worked perfectly
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Showing 1-3 of 3 reviews