Overview

Product Series Description

The DXT Series diaphragm thermal expansion tank is designed for use in domestic system installations for sanitary hot water applications. The tank is installed in systems equipped with a backflow preventer or as an add-on to direct or indirect water heaters. The tank’s function is to absorb the increased volume of water which results from the heating process, thereby keeping the system’s pressure below the relief valve settings. The tanks are available in sizes from 2 to 13 gallons. The heavy duty butyl diaphragm is designed to provide a permanent separation of the water from the air cushion. The exclusive TOP-PRO ® internal coating ensures effective protection against corrosion and allows the product to be safely used in sanitary fresh water systems. The installation of a DXT tank in any of the above mentioned systems reduces the system’s operating costs and prevents unnecessary relief valve operation.

Features & Benefits

Welded Construction Adds safety to your installation.
Heavy Duty Butyl Diaphragm Withstands temperatures as high as 200°F. Of solid construction, manufactured in house through an injection molding process. Made of proprietary food quality Butyl compound which will not release taste or odors in the water.
Polyester powder white finish Provides an attractive, durable appliance like finish obtained through an oven baking process of the polyester paint powder.
40 PSI Factory Precharge on All Models Suits most common installations. The precharge can be manually adjusted on site.
Strong Construction Tanks are sturdy and built to last, while at the same time they are lightweight, easy to handle, and simple to install.
Protection of water inlet Plastic insert keeps the diaphragm safe, prevents well water debris from entering the tank, and enhances the resistance of water inlet against corrosion.
TOP-PRO ® Internal Lining The exclusive TOP-PRO ® internal coating provides good protection against water corrosion, yet it does not affect the taste or quality of the water. The TOP-PRO ® coating is also applied at the water connection line to prevent it from premature rusting.* Moreover, the coating does not allow the diaphragm to stick to the tank shell.

* When installed in normal environmental conditions. By normal environmental conditions it is meant environments which are free of acids, scale or chemical deposits or other factors known to affect paints, coatings and metals.

Specifications

Packaging & Shipping Data

Model
Number
Packaging Dimensions
(in.)
Volume
(cu.ft.)
Quantity *
per Pallet
DXT-8 8-5/16 x 8-5/16 x 12-5/8 0.48 162
DXT-18 10-7/8 x 10-7/8 x 16-7/8 1.15 70
DXT-24 10-7/8 x 10-7/8 x 18-7/8 1.40 70
DXT-35 16-1/4 x 16-1/4 x 16-1/4 1.40 33
DXT-50 15-7/8 x 15-7/8 x 23-3/8 3.71 33

*Quantity per pallet may vary depending on the size of the pallets and the limitations presented by the means of transportation used when shipping out the product to its final destination. In case there are differences between the quantities per pallet listed here and the actual quantity per pallet loaded, you will be contacted by one of our staff members.

Selection Tables

Selection Tables

Ending Temperature

System Content
(gal.)
Max. Desired
Press. (PSIG)

110°F

120°F  130°F  140°F  150°F  160°F  170°F
30 90
100
120

DXT-8
DXT-8
DXT-8

DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
40 90
100
120
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
50 90
100
120
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-18
DXT-8
DXT-8
DXT-18
DXT-18
DXT-8
75 90
100
120
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-8
DXT-18
DXT-18
DXT-8
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
100 90
100
120
DXT-8
DXT-8
DXT-8
DXT-18
DXT-18
DXT-8
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-24
DXT-18
DXT-18
120 90
100
120
DXT-18
DXT-8
DXT-8
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-18
DXT-24
DXT-24
DXT-18
DXT-24
DXT-24
DXT-24
250 90
100
120
DXT-18
DXT-18
DXT-18
DXT-24
DXT-24
DXT-18
DXT-35
DXT-35
DXT-24
DXT-35
DXT-35
DXT-35
DXT-50
DXT-35
DXT-35
DXT-50
DXT-50
DXT-35
DXT-50
DXT-50
DXT-50

For supplying minimum pressure 45-50 psig – Thermal Expansion Absorber must be precharged to 40 psig – For relief valve setting: 125 psig – use 100 psig minimum pressure, 150 psig – use 120 psig minimum pressure; Initial temperature 60° F


Contact Us

Elbi Of America, Inc.
4627 N. Sam Houston Parkway East Houston, TX 77032

(713) 674-2900

Hours of Operation

Monday–Friday: 7am–4pm CST
Saturday-Sunday: Closed