ET - Expansion Tank Cutsheet.pdf
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- Solicitation number
- 47PB5126R0008
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- Not on record
About this file
This is a product submittal document for Series "D" (ASME) Pressurized Expansion Tanks manufactured by Bell & Gossett/Xylem. The document specifies 13 tank models ranging from D-15 to D-280, with tank volumes from 7.8 gallons (30 liters) to 211 gallons (799 liters). Each model is available in four configurations: standard pressurized expansion tanks, units with sight glass, units with seismic restraints, and units with both sight glass and seismic restraints. Part numbers are provided for each configuration, enabling precise specification and ordering.
The tanks are ASME-rated precharged diaphragm-type pressure vessels designed to absorb expansion forces in heating and cooling systems while maintaining proper system pressurization. Construction materials include forged steel system connections, carbon steel shells, and heavy-duty butyl rubber diaphragms per ASME Section VIII, Division 1. All tanks feature integrated bladder integrity monitors and are factory pre-charged at 40 PSI. The maximum design pressure is 125 PSI (862 kPa) and maximum design temperature is 240°F (115°C). Detailed dimensional specifications, weights (both dry and flooded), and technical parameters are provided for each model to support installation and integration into heating/cooling systems. The tanks are explicitly noted as unsuitable for potable water systems.
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Text version
Model no.
Part numbers Volume gal (L)
Tagging information QuantityPressurized expansion tanks
With sight glass
With seismic restraints
With sight glass & seismic restraints
Tank Acceptance
D-15 116298 116311 116324 116337 7.8 (30) 6.3 (24)
D-20 116299 116312 116325 116338 11 (42) 8.8 (33)
D-40 116300 116313 116326 116339 25 (95) 20.2 (76)
D-60 116301 116314 116327 116340 35 (132) 28 (106)
D-80 116302 116315 116328 116341 45 (170) 36 (136)
D-100 116303 116316 116329 116342 60 (227) 48.5 (184)
D-120 116304 116317 116330 116343 70 (265) 56.5 (214)
D-144 116305 116318 116331 116344 80 (303) 65 (246)
D-180 116306 116319 116332 116345 90 (341) 73 (276)
D-200 116307 116320 116333 116346 115 (435) 93 (352)
D-240 116308 116321 116334 116347 140 (530) 113.5 (430)
D-260 116309 116322 116335 116348 158 (598) 128 (485)
D-280 116310 116323 116336 116349 211 (799) 171 (647)
Submittal A-346I
Series “D” (ASME) Pressurized Expansion Tanks Not for potable water systems Series “D” expansion tanks are ASME rated precharged diaphragm-type pressure vessels.
The Series “D” tank is designed to absorb the expansion forces of heating/cooling system water while maintaining proper system pressurization under varying operating conditions.
The heavy duty diaphragm separates system water from the tank air charge thereby eliminating waterlogging problems. All Series “D” expansion tanks include an integrated bladder integrity monitor and are available with sight glass and/or seismic restraints.
Construction materials System connection: Forged steel Shell: Carbon steel Diaphragm: Heavy duty butyl rubber, designed and constructed per ASME Section VIII, Division 1
Maximum operating limits Maximum design pressure: 125 PSI (862 kPa) Design temperature: 240°F (115°C)
Schedule
Job Representative
Unit tag Order number Date
Engineer Submitted by Date
Contractor Approved by Date
System Connection (C)
Gauge
Bladder Integrity Monitor
Charging Valve (E)
F
B
ØD
ØA
Angle Clip ØBolt Circle (H)
Bolt Hole Size (G)
I
J
Model A in (mm)
B in (mm)
C
(NPTM)
Charging Valve
E
D in (mm)
F in (mm)
G in (mm)
H in (mm)
I in (mm)
J in (mm)
Ship Wt.
lbs (kg)
Flooded Wt.* lbs (kg) D-15 12 (305) 19 (483) ¾ .302"-32 NC 10 (254) 0.14 (4) 9/16 (14) 12 (305) 2 (51) 2 (51) 42 (19) 107 (49)
D-20 12 (305) 25 (638) ¾ .302"-32 NC 10 (254) 0.14 (4) 9/16 (14) 12 (305) 2 (51) 2 (51) 52 (24) 144 (65)
D-40 16 (406) 33 (838) 1 .302"-32 NC 14 (356) 0.14 (4) 9/16 (14) 16 (406 2 (51) 2 (51) 84 (38) 292 (132)
D-60 16 (406) 44 (1,118) 1 .302"-32 NC 14 (356) 0.14 (4) 9/16 (14) 16 (406 2 (51) 2 (51) 97 (44) 389 (176)
D-80 20 (508) 38 (965) 1 .302"-32 NC 18 (457) 0.14 (4) 9/16 (14) 20 (508) 2 (51) 2 (51) 148 (67) 523 (237)
D-100 20 (508) 49 (1,245) 1 .302"-32 NC 18 (457) 0.14 (4) 9/16 (14) 20 (508) 2 (51) 2 (51) 175 (79) 675 (306)
D-120 24 (610) 46 (1,168) 1½ .302"-32 NC 22 (559) 0.14 (4) 9/16 (14) 24 (610) 2 (51) 2 (51) 259 (117) 842 (382)
D-144 24 (610) 49 (1,245) 1½ .302"-32 NC 22 (559) 0.14 (4) 9/16 (14) 24 (610) 2 (51) 2 (51) 268 (122) 934 (424)
D-180 24 (610) 52 (1,321) 1½ .302"-32 NC 22 (559) 0.14 (4) 9/16 (14) 24 (610) 2 (51) 2 (51) 283 (128) 1,033 (468)
D-200 24 (610) 66 (1,676) 1½ .302"-32 NC 22 (559) 0.14 (4) 9/16 (14) 24 (610) 2 (51) 2 (51) 325 (147) 1,283 (582)
D-240 24 (610) 78 (1,981) 1½ .302"-32 NC 22 (559) 0.14 (4) 9/16 (14) 25 (635) 3 (76) 3 (76) 362 (164) 1,528 (693)
D-260 30 (762) 63 (1,600) 1½ .302"-32 NC 24 (610) 0.14 (4) 9/16 (14) 27 (686) 3 (76) 3 (76) 591 (268) 1,907 (865)
D-280 30 (762) 81 (2,057) 1½ .302"-32 NC 24 (610) 0.14 (4) 9/16 (14) 27 (686) 3 (76) 3 (76) 752 (341) 2,510 (1,138)
Dimensions subject to change. Not to be used for construction purposes. *Approximate weight 100% full occurs if bag fails or if air charge is lost.
NOTE
Tanks are factory pre-charged at 40 PSI (276 kPa).
Sight glass and seismic restraints available.
Tanks can also be installed in the horizontal position only.
A-346I March 2025
© 2025 Xylem Inc. or its affiliate. All rights reserved. Bell & Gossett is a trademark of Xylem or one of its subsidiaries.
This information is subject to revision without notice. Users are responsible for evaluating suitability for specific applications. Xylem makes no implied warranties including without limitation warranties as to fitness for a particular purpose. Xylem makes no representation regarding the completeness or accuracy of this information and is not liable for any direct or indirect damages arising from or relating to this information or its use.
Dimensions and weights
Xylem 8200 N. Austin Avenue Morton Grove, IL 60053
Tel +1 847.966.3700 Fax +1 847.965.8379 xylem.com/bellgossett
Series “D” (ASME) pressurized expansion tanks
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