Apollo Conbraco 16XT User Manual

Water Expansion Tank

16XT Series - Non-Potable Water

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DESCRIPTION

Apollo® Model EXT expansion tanks are designed for use in hot water boiler installations for hydronic heating applications to absorb pressure
increases caused by thermal expansion from the heating process. Not for use with potable water systems.

FEATURES

• Chlorobutyl diaphragm

• Durable triple coated epoxy grey finish

• Field adjustable charge

• Hex flat NPT connection

• Vertical or horizontal mount

• Glycol compatible

• Drawn steel construction

PERFORMANCE RATING

• Maximum Operating Pressure: 150 psi

• Maximum Temperature: 200°F

• Pre-charge Pressure: 12 psig

DIMENSIONS

MODEL

NUMBER

EXT2 16XT1-04 2.10 0.9 1/2 8.0 12.5 4.25
EXT5 16XT3-04 4.5 2.5 1/2 11.0 15.0 7.5
EXT7 16XT5-04 6.0 3.0 1/2 11.5 16.63 8.75

EXT14 16XT7-04 14.0 11.3 1/2 15.5 23.5 19

PART

NUMBER

CAPACITY

(GAL .)

EXPANSION VOLUME

(GAL .)

CONNECTION SIZE

(NPT)

DIAMETER

(IN.)

HEIGHT

(IN.)

WEIGHT

(LB.)

TANK SELECTION MATRIX

NET BOILER OUTPUT IN 1000S OF BTUS

25 50 75 100 125 150 175 200 250 300

Model Number EXT2 EXT2 EXT5 EXT5 EXT5 EXT5 EXT7 EXT7 EXT7 EXT14

Operating conditions: cold pressure 12psi, relief set to 30psi, maximum temperature 200ºF. Sizes are for finned tube baseboard radiation. For
systems with converters and/or head unit heaters, increase tank one size; with cast iron radiation, increase tank two sizes.

Customer Service [phone]

www.apolloflowcontrols.com

SS1013 © 03/17 Page 1 of 1

This specification is provided for reference only. Conbraco Industries Inc. reserves the right to change any portion
of this specification without notice and without incurring obligation to make such changes to Conbraco products
previously or subsequently sold. Please visit apolloflowcontrols.com for the most current information.