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Boiler System Expansion Tanks
Extrol®. First In Expansion Control.
Page 2
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 six decades later, Extrol is
still the world’s leading expansion tank brand, setting the standard
for quality, reliability and innovation.
All Extrol tanks are made in the USA at our ISO registered
facilities by American workers dedicated to producing the
highest quality expansion tanks in the world.
American Tube Products
founded in West Warwick,
2
Rhode Island
1946
Amtrol’s patent for the
rst diaphragm tank was
issued over 60 years ago.
Built current
Invented the
pre-pressurized
well tank
Rhode Island
manufacturing
facility
Invented the
indirect-red
Hot Water Maker
Opened the
®
Amtrol Education
Center
1963 1972 1980 1988 1992
1954 1967 1975 1986 1991
Invented the
diaphragm
expansion tank
Invented the
refrigerant
gas cylinder
Entered the
commercial
products business
Invented the
top coil indirect
Hot Water Maker
®
Invented the
expansion tank
registered ISO 9001
thermal
AMTROL
Page 3
The One That Started It All.
Acquired
ALFA Cylinder
Manufacturing
in Portugal
1997
The complete line of Extrol tanks includes inline, oor-standing, air
elimination packages and special application models.
Invented the
composite metal
LP tank
2005
2003
AMTROL registered
ISO 9001:2000
®
Launched
Amtrol Rewards
2007
Introduced
XLite
cylinder
™
AMTROL registered
ISO 9001:2008
2009
Tanks on Tour™
mobile education center
hits the road
2010
Launched
Next Generation
Well-X-Trol
20 millionth
well tank shipped
Introduced ASME for
propane vehicles
2014
2012
Launched
®
HydroMax®
Hot Water Makers
2016
Amtrol
70th Anniversary
3
Page 4
Automatic Air Vent
eliminates system air
Air Purger
separates air from water
System connection sets the
point of no pressure change
Watertight reservoir
for expanded water
Thick, heavy duty Butyl/EPDM
diaphragm for long service life
Sealed air cushion — factory
pre-charged and 100% tested
Factory precharge: 12 psig
Max. working pressure: 100 psig
Max. operating temperature: 240°F
Strong, deep-drawn steel tank
Projection-welded air stem
maintains precharge setting
4
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Models and Specications
EX Series Specifications
Model
Number
Tank
Volume
(Gallons)
EX-15 2.0 1.0 8 13
EX-30 4.4 2.5 11 15
EX-60 7.4 2.5 11 23
EX-90 14.0 11.3 15 21
EX Series Combination Packages
Model
Number
EX-1500-100 1 EX-15 443 700-C 10
EX-1500-125 1 1⁄4 EX-15 444 700-C 10
EX-3000-100 1 EX-30 443 700-C 14
EX-3000-125 1 1⁄4 EX-30 444 700-C 14
System
Connections
(NPTF)
EX Series Sizing
Boiler Type of Radiation
Net Output
in 1000’S
of BTU/Hr.
MBH Use Model Use Model Use Model Use Model
25 EX-15 EX-15 EX-15 EX-15
50 EX-15 EX-15 EX-30 EX-30
75 EX-30 EX-30 EX-30 EX-60
100 EX-30 EX-30 EX-60 EX-60
125 EX-30 EX-60 EX-60 EX-90
150 EX-30 EX-60 EX-90 EX-90
175 EX-60 EX-60 SX Series SX Series
200 EX-60 EX-60 SX Series SX Series
250 EX-60 EX-90 SX Series SX Series
300 EX-90 SX Series SX Series SX Series
Sizing based on: 12 psig Fill; 30 psig Relief Valve; 200°F Average Temperature.
For sizing with fluids other than water, visit amtrol.com, download the AMTROL App or consult AMTROL Technical Support.
Finned Baseboard
or Radiant Panels
Max.
Acceptance
Factor (Gallons)
EXTROL
Model
Convectors
or Unit Heaters
A
Diameter
(Inches)
Air Purger
Model
Radiators
Cast Iron
B
Height
(Inches)
System
Connection
(NPTM)
1
⁄2 5
1
⁄2 9
1
⁄2 14
1
⁄2 23
Air Vent
Model
Baseboard
Shipping
Cast Iron
Shipping
Weight
(lbs.)
Weight
(lbs.)
Typical Installation
System
Supply
Circulator
Air
Purger
Expansion
Air Vent
Extrol
Tank
Fill
Valve
Boiler
Cold
Water
Supply
System
Return
5
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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 (see sizing charts). ASME
Commercial tanks are also available and can be found in catalog MC 2682.
SX Series Specifications
Model
Number
Tank
Volume
(Gallons)
SX-30V 14 11.3 15 24 1 25
SX-40V 20 11.3 15 32 1 33
SX-60V 32 11.3 15 48 1 43
SX-90V 44 34.0 22 36 11⁄4 69
SX-110V 62 34.0 22 47 11⁄4 92
SX-130V 81 34.0 22 56 11⁄4 103
SX-160V 86 46.0 26 47 11⁄4 123
Factory pre-charge: 12 psig.
Maximum working pressure: 100 psig.
Maximum operating temperature: 240°F.
Max.
Accept.
Volume
(Gallons)
A
Diameter
(Inches)
B
Height
(Inches)
System
Connection
(NPTF)
Shipping
Weight
(lbs.)
System
Supply
Circulator
Typical Installation
Fill
Air Vent
Air
Separator
Extrol
Expansion
Tank
Valve
Boiler
Water
Supply
System
Return
Sizing
Boiler Type of Radiation and Piping System
Net Output in
1000’s of BTU
200 SX- 30V SX-30V SX-30V SX-30V
250 SX- 30V SX-30V SX-30V SX-40V
300 SX- 30V SX-30V SX-40V SX-40V
350 SX-30V SX-30V SX-40V SX-60V
400 SX-30V SX-40V SX-60V SX-60V
450 SX-40V SX-40V SX-90V SX-90V
500 SX-40V SX-40V SX-60V SX-90V
550 SX-40V SX-60V SX-60V SX-90V
600 SX-40V SX-60V SX-90V SX-90V
650 SX-60V SX-60V SX-90V SX-90V
700 SX-60V SX-60V SX-90V SX-90V
750 SX-60V SX-60V SX-90V SX-110V
800 SX-60V SX-90V SX-90V SX-110V
850 SX-60V SX-90V SX-90V SX-110V
900 SX-60V SX-90V SX-110V SX-110V
950 SX-90V SX-90V SX-110V SX-110V
1,000 SX-90V SX-90V SX-110V SX-110V
1,100 SX-90V SX-90V SX-110V SX-130V
1,200 SX-90V SX-90V SX-110V SX-130V
1,300 SX-90V SX-110V SX-130V SX-160V
1,400 SX-110V SX-130V SX-160V SX-160V
1,500 SX-110V SX-130V 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.
Finned Tube
Baseboard or Radiant
Panels with Series
Loop System
Convectors or
Unit Heaters
with One Pipe
System
Radiators
or
One Pipe
System
Cast Iron
Radiators
with Series
Loop System
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Special Application Expansion Tanks
Spring-Loaded
FILL-TROL® System
• Eliminates the need for a separate,
automatic fill valve.
• Tank pressure controls system fill.
• Factory pre-charge: 12 psig.
• Fully adjustable up to a maximum
working pressure of 100 psig.
Check Valve
Removable
Strainer
Cold Water
Supply
1/2˝ Compression
Fitting Connection
System Pressure
Above Diaphragm
Fill Gate
Stem
O-Ring Seal
RADIANT EXTROL
• For low temperature systems.
• Plastic liner is compatible with barrier
and non-barrier tubing.
• Suitable for use in glycol applications.
• Stainless steel connection for
corrosion resistance.
• Factory pre-charge: 12 psig.
• Maximum working pressure: 100 psig.
• Maximum operating temperature: 200°F.
Automatic Shut-Off
Valve Spring
Expansion
Bypass
Automatic
Shut-Off Valve
Pressure Plate
Diaphragm
®
Fill-Trol® Specifications
Tank
Model
Number
Volume
(Gallons)
Max. Accept.
Volume
(Gallons)
FT-109 2.0 1.0 8 15
FT-110 4.4 2.5 11 17
FT-111 7.4 2.5 11 25
FT-112 14.0 11.3 15 23
Note: A standard EXTROL tank is not interchangeable with a FILL-TROL tank.
FT-109 is equivalent to EX-15; FT-110 is equivalent to EX-30;
FT-111 is equivalent to EX-60 and FT-112 is equivalent to EX-90
A
Diameter
(Inches)
B
Height
(Inches)
System
Connection
(NPTF)
1
1
1
1
.
Shipping
Weight
(lbs.)
⁄2 6
⁄2 10
⁄2 15
⁄2 24
Combination Packages
Model
Number
System
Connections
(NPTF)
FILL-TROL
Model
Air Purger
Model
Air Vent
Model
FT-109-100 1 109 443 700-C 10
FT-109-125 11⁄4 109 444 700-C 10
FT-110-100 1 110 443 700-C 14
FT-110-125 11⁄4 110 444 700-C 14
FT-111-125 11⁄4 111 444 700-C 18
Shipping
Weight
(lbs.)
Radiant Extrol® Specifications
Tank
Model
Number
Volume
(Gallons)
Max. Accept.
Volume
(Gallons)
RX-15 2.0 0.9 8 13
RX-30 4.4 3.2 11 15
RX-60 10.3 10.3 15 19
A
Diameter
(Inches)
B
Height
(Inches)
System
Connection
1
⁄2 NPTM 5
1
⁄2 NPTM 9
3
⁄4 NPTF 23
Shipping
Weight
(lbs.)
Sizing
Feet of
Tubing
3/8" 1/2" 5/8" 3/4" 1"
1,000 RX-15 RX-15 RX-15 RX-15 RX-15
5,000 RX-15 RX-15 RX-15 RX-30 RX-30
7,500 RX-15 RX-15 RX-30 RX-30 RX-60
10,000 RX-15 RX-30 RX-30 RX-60
14,000 RX-15 RX-30 RX-60 RX-60
18,000 RX-30 RX-60 RX-60
22,000 RX-30 RX-60
30,000 RX-30 RX-60
Sizing based on: Fill Pressure 12 psig; Relief Pressure 30 psig; Average Temperature 120°F;
System filled with water. For glycol applications, consult AMTROL Technical Support.
Nominal Pex Tubing Size
RX-60
RX-60
RX-60
Contact Amtrol
SOLAR EXTROL
®
• For high-efficiency solar systems.
• Suitable for use in glycol applications.
• Factory pre-charge: 25 psig.
• Maximum working pressure: 150 psig.
• Maximum operating temperature: 250°F.
Solar Extrol® Specifications
Tank
Model
Number
Volume
(Gallons)
Max. Accept.
Volume
(Gallons)
SE-15 2.0 1.0 8 13
SE-30 4.4 2.5 11 16
SE-60 7.4 2.5 11 23
For Precise Sizing, visit www.amtrol.com or consult AMTROL Technical Support.
A
Diameter
(Inches)
B
Height
(Inches)
System
Connection
(NPTM)
1
⁄2 5
1
⁄2 9
1
⁄2 14
Sizing
System
Volume
(Gallons)
140°F 160°F 180°F 200°F 220°F
10 SE-15 SE-15 SE-15 SE-15 SE-15
20 SE-30 SE-30 SE-30 SE-30 SE-30
30 SE-30 SE-30 SE-60
40 SE-60 SE-60
50 SE-60 SE-60
Sizing based on: 50% Water and Propylene Glycol Max; 25 psig Fill; 50 psig Relief Valve.
For other applications, consult AMTROL Technical Support.
Average System Operating Temperature
SE-60 SE-60
SE-60
Contact Amtrol
Shipping
Weight
(lbs.)
7
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Amtrol Advantage
™
Whenever you choose Amtrol, you’re getting more than just a great product.
The Amtrol Advantage™ combines the Industry’s best brands with world class
customer service and valuable installer initiatives.
• Amtrol Rewards™ installer points program
• Tanks on Tour™ eld training vehicle
• Amtrol Racing team
1400 Division Road, West Warwick, RI USA 02893
T: 800.426.8765 F: 800.293.1519
www.amtrol.com
© 2016 AMTROL Inc. MC 2680 (06/16)
Mark of the
Originator
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