EXTROL® Expansion Tanks Amtrol Inc. designed and patented the first Extrol® diaphragm expansion tank in 1954 to control system pressure and help reduce energy consumption in heating and chilled water systems. Over five decades later, Extrol is still the world’s leading expansion tank and still proudly made in the USA.
American Tube Products founded in West Warwick, Rhode Island
Invented the indirect-fired Hot Water Maker®
Invented the pre-pressurized well tank
1963
1946
AMTROL registered ISO 9001
1980
1954
1967
Invented the diaphragm expansion tank
1992
2009
1991
Invented the composite metal LP tank
EXTROL
Tanks on Tour™ mobile education center
Specifications
• Accepts expanded water as system temperature rises to reduce pressure build-up.
Model Number
Tank Volume (Gallons)
• Factory pre-charge: 12 psig.
EX-15 EX-30 EX-60 EX-90
2.0 4.4 7.6 14.0
• Maximum working pressure: 100 psig. • Maximum operating temperature: 240°F. Automatic Air Vent eliminates system air
Max. Accept. Volume (Gallons)
A Height (Inches)
B Diameter (Inches)
System Conn. NPTM (Inches)
Shipping Weight (lbs.)
0.9 2.5 2.5 11.3
13 16 23 21
8 11 11 15
12
⁄ ⁄ 1⁄2 1⁄2
5 9 14 23
System connection sets the point of no pressure change Water-tight reservoir for expanded water Butyl/EPDM diaphragm Sealed air cushion — factory pre-charged and 100% tested
Model Number
Size
EXTROL Model
Air Vent Model
Air Purger Model
Shipping Weight (lbs.)
EX-1500-100 EX-1500-125 EX-3000-100 EX-3000-125 EX-6000-125 EX-6000-150
1 1 1⁄4 1 1 1⁄4 1 1⁄4 1 1⁄2
EX-15 EX-15 EX-30 EX-30 EX-60 EX-60
700-C 700-C 700-C 700-C 700-C 700-C
443 444 443 444 444 445
10 10 14 14 19 19
Deep-drawn steel tank
Sizing
Air stem for pre-charge adjustment
Typical Installation Air Vent System Supply Circulator
Air Purger
Shut-Off Valve
Backflow Preventer
Shut-Off Valve
System Purge
Boiler
Water Supply System Return
PressureRelief Valve
Extrol Expansion Tank
2
PressureReducing Valve
12
Combination Packages
Air Purger separates air from water
Flow-Check Valve
2012
2005
Invented the thermal expansion tank
Invented the refrigerant gas cylinder
Launched HydroMax™ Hot Water Makers
Introduced CH-Series Hot Water Makers
Boiler
Type of Radiation
Net Output in 1000’S of BTU/Hr.
Finned Tube Baseboard or Radiant Panel
Convectors or Unit Heaters
Radiators Cast Iron
Baseboard Cast Iron
MBH
Use Model
Use Model
Use Model
Use Model
25 50 75 100 125 150 175 200 250 300 350 400
EX-15 EX-15 EX-30 EX-30 EX-30 EX-30 EX-60 EX-60 EX-60 EX-90 SX-30V SX-30V
EX-15 EX-15 EX-30 EX-30 EX-60 EX-60 EX-60 EX-60 EX-90 SX-30V SX-30V SX-40V
EX-15 EX-30 EX-30 EX-60 EX-60 EX-90 SX-30V SX-30V SX-30V SX-30V SX-40V SX-40V
EX-15 EX-30 EX-60 EX-60 EX-90 EX-90 SX-30V SX-30V SX-40V SX-40V SX-60V SX-60V
Sizing based on: Fill Pressure 12 psig; Relief Pressure 30 psig; Average System Temp. 200°F; System filled with water. For compatibility and sizing for other fluids, consult Amtrol Technical Support.
EXTROL® Floor-Standing Models Extrol floor-standing models are designed for large residential and light commercial applications. These non-ASME tanks are available in sizes up to 86 gallons and can be used with high output boilers up to 1,500,000 BTU's. ASME Commercial tanks are also available and can be found in catalog MC 2682.
EXTROL SX Series
Specifications
• Factory pre-charge: 12 psig. • Maximum working pressure: 100 psig. • Maximum operating temperature: 240°F.
Model Number
Tank Volume (Gallons)
Max. Accept. Volume (Gallons)
A Height (Inches)
SX-30V SX-40V SX-60V SX-90V SX-110V SX-130V SX-160V
14 20 32 44 62 81 86
11.3 11.3 11.3 34.0 34.0 34.0 46.0
25 33 48 36 47 56 47
B System Diameter Conn. NPTF (Inches) (Inches)
15 15 15 22 22 22 26
1 1 1 11⁄4 11⁄4 11⁄4 11⁄4
Shipping Weight (lbs.)
25 33 43 69 92 103 123
Sizing Boiler
Type of Radiation and Piping System
Finned Tube Net Output in Baseboard or Radiant 1000’s of BTU Panels with Series Loop System
Typical Installation Air Vent
Air Separator
System Supply Flow-Check Valve
PressureReducing Valve
Backflow Preventer Shut-Off Valve
Shut-Off Valve
System Purge
System Return
Circulator PressureRelief Valve
Extrol Expansion Tank
Water Supply
Boiler
200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1,000 1,100 1,200 1,300 1,400 1,500
SX- 30V SX- 30V SX- 30V SX-30V SX-30V SX-40V SX-40V SX-40V SX-40V SX-60V SX-60V SX-60V SX-60V SX-60V SX-60V SX-90V SX-90V SX-90V SX-90V SX-90V SX-110V SX-110V
Convectors or Unit Heaters with One Pipe System
Radiators or One Pipe System
Cast Iron Radiators with Series Loop System
SX-30V SX-30V SX-30V SX-30V SX-40V SX-40V SX-40V SX-60V SX-60V SX-60V SX-60V SX-60V SX-90V SX-90V SX-90V SX-90V SX-90V SX-90V SX-90V SX-110V SX-130V SX-130V
SX-30V SX-30V SX-40V SX-40V SX-60V SX-90V SX-60V SX-60V SX-90V SX-90V SX-90V SX-90V SX-90V SX-90V SX-110V SX-110V SX-110V SX-110V SX-110V SX-130V SX-160V SX-160V
SX-30V SX-40V SX-40V SX-60V SX-60V SX-90V SX-90V SX-90V SX-90V SX-90V SX-90V SX-110V SX-110V SX-110V SX-110V SX-110V SX-110V SX-130V SX-130V SX-160V SX-160V (2)SX-110V
Sizing based on: Average Boiler Water Volume; Average Water Volume; Fill Pressure 12 psig; Relief Pressure 30 psig For other boiler sizes or operating conditions, consult Amtrol Technical Support
AMTROL Headquarters 1400 Division Road West Warwick, RI USA 02893 Telephone: 401.884.6300
www.amtrol.com
AMTROL Canada, Ltd. 275 Shoemaker Street Kitchener, Ontario N2E 3B3 Telephone: 519.748.1138
AMTROL, AT logo, EXTROL, RADIANT EXTROL, SOLAR EXTROL, FILL-TROL are trademarks of AMTROL Inc. and its affiliates in the U.S. and elsewhere. All rights reserved. ©2011 AMTROL Inc. MC 2680 (10/11)
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