EXTROL® EXPANSION TANKS For Closed Hydronic Heating, Radiant & Chilled Water Systems
AMTROL® Quality Expansion Tanks The First in the Industry
Table of Contents AMTROL Quality Expansion Tanks .... 2
AMTROL® designed and patented the first EXTROL®
How It Works....................................... 2
expansion tank in 1954, redefining hydronic heating systems. For five decades our unique, pre-pressurized, diaphragm-
The EXTROL® System......................... 3
design EXTROL has been the world's leading expansion
Typical Residential Installation............ 3
tank. EXTROL was designed to control system pressure and help reduce energy consumption of heating and circulating
Residential Models and Packages ..... 4 The FILL-TROL® System..................... 5 Commercial Non-ASME Models ........ 6
operations.
The AMTROL Advantage •
AMTROL and its subsidiaries offer a complete line of quality engineered products for heating and water
Typical Commercial Installation .......... 6
systems throughout the world.
Commercial ASME Models ................ 7
•
ISO 9001:2000 Certification reflects AMTROL's worldwide vision and commitment to excellence and customer
Sizing the EXTROL® .................... 4, 6, 8
focus. •
Full technical support is available at 401-535-1216.
How AMTROL Expansion Tanks Work
When the system is first filled with cold
As the system water temperature increases,
As the system water temperature reaches its
water, the EXTROL's pre-charge pressure,
the expanded water is absorbed by the
maximum, the EXTROL diaphragm flexes
which is equal to the fill pressure, keeps the
EXTROL tank.
against the air cushion to allow for the
diaphragm flush against the tank.
2
increased water expansion.
The EXTROL® System AMTROL® EXTROL® System Advantages •
Provides permanent
AMTROL Automatic Air Vent eliminates system air
separation of system water
AMTROL Air Purger separates air from water
from air cushion •
Controls system pressure
•
Butyl/EPDM diaphragm for superior air retention — 9 times
Provides permanent point of pressure reference at the system connection Water-tight reservoir for expanded water Butyl/EPDM diaphragm Deep-drawn steel tank Air-tight air cushion — factory precharged and 100% tested
better than natural rubber •
Maintenance-free design
Typical Installation of Residential Models (The EXTROL is for use only in closed hydronic heating systems and chilled non-potable water systems.)
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Residential Models and Packages EXTROL® • Factory pre-charged to 12 psig • Maximum working pressure: 100 psig • Maximum operating temperature: 240°F EXTROL Specifications Model Number
Tank Max. Accept. Volume Volume (Gallons) (Gallons)
15 30 60 90 1
2.0 4.4 7.6 14.0
EXTROL Combination Packages
A Height (Inches)
0.9 2.5 2.5 11.3
B Diameter (Inches)
12 5⁄8 15 1⁄2 23 21
8 11 11 15 3⁄8
System Conn.1 (Inches)
Shipping Weight (lbs.)
⁄ 1⁄2 1⁄2 1⁄2
5 9 14 23
12
Model Number
1500/1 or 1 1⁄4 3000/1 or 1 1⁄4 6000/1 1⁄4 6000/1 1⁄2
Extrol Model
Purger Model
Vent Model
Ship. Wt. (lbs.)
15 30 60 60
443 or 444 443 or 444 444 445
700-C 700-C 700-C 700-C
9 14 19 19
EXTROL Package
System Connection is NPTM
Sizing the EXTROL Sizing Based on BTU’s BOILER Net Output in 1000'S of BTU/Hr.
Sizing Based on Maximum System Temperature
Finned Tube Baseboard or Radiant Panel
TYPE OF RADIATION Convectors or Unit Radiators Heaters Cast Iron
MBH
Use Model
Use Model
Use Model
Use Model
25 50 75 100 125 150 175 200 250 300 350 400
15 15 30 30 30 30 60 60 60 90 SX-30V SX-30V
15 15 30 30 60 60 60 60 90 SX-30V SX-30V SX-40V
15 30 30 60 60 90 SX-30V SX-30V SX-30V SX-30V SX-40V SX-40V
15 30 60 60 90 90 SX-30V SX-30V SX-40V SX-40V SX-60V SX-60V
Baseboard Cast Iron
Sizing based on: • Fill Pressure 12 psig • Relief Pressure 30 psig • Average System Temp. 200°F • System filled with water • Consult factory for compatibility and sizing for other fluids.
Max. System Temp. °F
Model 15
100 110 120 130 140 150 160 170 180 190 200 210 220 230 240
125 93 72 58 48 40 34 30 26 23 20 18 17 15 14
System Water Content in Gallons Model 30 Model 60
275 205 158 128 105 89 76 65 57 51 45 40 37 33 30
417 311 239 194 160 134 115 99 87 77 68 61 55 50 46
Model 90
876 653 502 407 336 282 241 208 182 161 143 129 116 106 96
Sizing by system temp. based on: • Max. Operating Temperature 240°F • Fill Pressure 12 psig • Relief Pressure 30 psig • Water Fill Temperature 40°F
For Radiant Systems, Use RADIANT EXTROLTM • • • • • •
Specifically designed for high-efficiency radiant systems Plastic liner compatible with barrier and non-barrier systems Suitable for use in glycol applications Non-ferrous system connection for corrosion resistance Maximum working pressure: 100 psig Maximum operating temperature: 200°F
RADIANT EXTROL Tanks for Radiant Systems Model Tank Max. Accept. A B Number Volume Volume Height Diameter (Gallons) (Gallons) (Inches) (Inches)
RX-15 RX-30 RX-60 1
2.0 4.4 10.3
0.9 3.2 10.3
System Connection is NPTM
12 5⁄8 15 1⁄2 19 1⁄4
8 11 15 3⁄8
System Conn.1 (Inches)
Shipping Weight (lbs.)
⁄ ⁄ 1
5 9 23
34 34
Radiant Extrol Quick Sizing Chart Feet of Tubing
3/8"
1000 5000 7500 10000 14000 18000 22000 30000
RX-15 RX-15 RX-15 RX-15 RX-15 RX-30 RX-30 RX-30
Nominal Pex Tubing Size 1/2" 5/8"
RX-15 RX-15 RX-15 RX-30 RX-30 RX-60 RX-60 RX-60
RX-15 RX-15 RX-30 RX-30 RX-60 RX-60 RX-60
Based on 120°F operating temp. with 12psi fill and 30psi relief valve. For glycol applications, consult AMTROL Technical Support.
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RADIANT EXTROL
3/4"
1"
RX-15 RX-30 RX-30 RX-60 RX-60 RX-60
RX-15 RX-30 RX-60 RX-60
See Precise Sizing on back page.
The FILL-TROL® System — Expansion Control with Automatic Fill Feature
The AMTROL FILL-TROL® system consists of a specially adapted EXTROL pre-pressurized, diaphragm-type expansion tank, and the FILL-TROL, a specially designed, automatic, pressure-reducing fill valve. • Provides accurate system make up • Eliminates need for a separate, automatic fill valve • Fully adjustable up to a maximum working pressure of 100 psig • Factory pre-charged to 12 psig; tank pressure controls system fill FILL-TROL Specifications Model Number
Tank Volume (Gallons)
Max. Accept. Volume (Gallons)
A Height (Inches)
B Diameter (Inches)
109 110 111 112
2.0 4.4 7.6 14.0
0.9 2.5 2.5 11.3
14 3⁄4 17 3⁄8 24 5⁄8 23
8 11 11 15 3⁄8
System Conn.1 (Inches)
Shipping Weight (lbs.)
⁄ ⁄ 1⁄2 1⁄2
6 10 15 24
12
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1 System Connection is NPTF Note: A standard EXTROL tank is not interchangeable with a FILL-TROL tank. To use either sizing chart on page 4 for selection, 109 FILL-TROL is equivalent to #15 EXTROL, 110 FILL-TROL is equivalent to #30 EXTROL, 111 FILL-TROL is equivalent to #60 EXTROL, and 112 FILL-TROL is equivalent to #90 EXTROL.
FILL-TROL Combination Packages Model Number
109-P/1 or 11⁄4 110-P/1 or 11⁄4 111-P/11⁄4
FILL-TROL Model
109 110 111
Purger Model
Vent Model
Shipping Weight (lbs.)
443 or 444 443 or 444 444
700-C 700-C 700-C
10 14 18
How the FILL-TROL System Works Water enters the FILL-TROL valve, pushing open the check valve, and flows into the heating system. The automatic shut-off valve is kept open by the diaphragm pressing against the pressure plate, raising the stem of the fill gate, which compresses the automatic shut-off valve spring. When the heating system reaches fill pressure (typically 12 psig), the tank's diaphragm depresses and the automatic shut-off valve is closed. Whenever system pressure falls below the tank precharge, the automatic shut-off valve is pressed open by the diaphragm. Make-up water flows into the system to restore pressure. 5
Commercial non-ASME Models The SX Series EXTROL® • Factory pre-charged to 12 psig • Maximum working pressure: 100 psig • Maximum operating temperature: 240°F
1
Model Number
Tank Volume (Gallons)
Max. Accept Volume (Gallons)
A Height (Inches)
B Diameter (Inches)
System Conn1 (Inches)
Shipping Weight (lbs.)
SX-30V SX-40V SX-60V SX-90V SX-110V SX-160V
14 20 32 44 62 86
11.3 11.3 11.3 34.0 34.0 46.0
24 3⁄4 32 1⁄2 47 1⁄2 36 46 3⁄4 47 1⁄4
15 3⁄8 15 3⁄8 15 3⁄8 22 22 26
1 1 1 11⁄4 11⁄4 11⁄4
25 33 43 69 92 123
System Connection is NPTF
SX Series Sizing & Selection Data BOILER
BOILER
TYPE OF RADIATION AND PIPING SYSTEM
TYPE OF RADIATION AND PIPING SYSTEM
Net Output in 1000's of BTU
Finned Tube Baseboard or Radiant Panels with Series Loop System
Convectors or Unit Heaters with One Pipe System
Radiators or One Pipe System
Radiators Cast Iron with Series Loop System
Net Output in 1000's of BTU
Finned Tube Baseboard or Radiant Panels with Series Loop System
Convectors or Unit Heaters with One Pipe System
Radiators or One Pipe System
Radiators Cast Iron with Series Loop System
MBH
Use Model
Use Model
Use Model
Use Model
MBH
Use Model
Use Model
Use Model
Use Model
200 250 300 350 400 450 500 550 600 650 700
SX- 30V SX- 30V SX- 30V SX-30V SX-30V SX-40V SX-40V SX-40V SX-40V SX-60V SX-60V
SX-30V SX-30V SX-30V SX-30V SX-40V SX-40V SX-40V SX-60V SX-60V SX-60V SX-60V
SX-30V SX-30V SX-40V SX-40V SX-60V SX-90V SX-60V SX-60V SX-90V SX-90V SX-90V
SX-30V SX-40V SX-40V SX-60V SX-60V SX-90V SX-90V SX-90V SX-90V SX-90V SX-90V
750 800 850 900 950 1000 1100 1200 1300 1400 1500
SX-60V SX-60V SX-60V SX-60V SX-90V SX-90V SX-90V SX-90V SX-90V SX-110V SX-110V
SX-60V SX-90V SX-90V SX-90V SX-90V SX-90V SX-90V SX-90V SX-110V SX-110V SX-110V
SX-90V SX-90V SX-90V SX-110V SX-110V SX-110V SX-110V SX-110V SX-160V SX-160V SX-160V
SX-110V SX-110V SX-110V SX-110V SX-110V SX-110V SX-160V SX-160V SX-160V SX-160V (2)SX-110V
These recommendations are calculated on average boiler water volumes and the average water volumes of currently popular types of radiation and piping systems. The industry operating standards of 12 psig fill pressure and 30 psig relief pressure are used. For boiler sizes or operating conditions other than above, refer to page 8, or consult our technical department for recommendations.
Typical Installation of Commercial Models
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Commercial ASME Models AX Series EXTROL® Horizontal & Vertical Models • Proven diaphragm design since 1954 • Designed and constructed per ASME Section VIII, Division 1 standards • Horizontal models are available with optional saddles • Factory pre-charged to 12 psig • Maximum working pressure is 125 psig • Maximum operating temperature is 240°F
AX Series Specifications Model Number
AX-15(V)* AX-20(V) AX-40(V) AX-60(V) AX-80(V) AX-100(V) AX-120(V) AX-144(V) AX-180(V) AX-200(V) AX-240(V) AX-260(V) AX-280(V)
Tank Volume (Gallons)
Max. Accept. (Gallons)
A – Vert. Height (Inches)
C – Horiz. Length (Inches)
B Diameter (Inches)
System Conn.1 (Inches)
Horiz. Ship.Wt.lbs. (w/o saddles)
Ship Wt.lbs. (w/saddles)
Vertical Ship.Wt. (lbs.)
8 10.9 21.7 33.6 44.5 55.7 68.0 77.0 90.0 110.0 132.0 158.0 211.0
2.4 2.4 11.3 11.3 22.6 22.6 34.0 34.0 34.0 34.0 46.0 56.0 84.0
19 1⁄2 26 1⁄2 29 1⁄2 45 1⁄8 27 3⁄4 32 3⁄8 43 7⁄8 48 3⁄4 56 1⁄8 62 5⁄8 53 1⁄2 60 1⁄2 78 1⁄4
19 1⁄4 26 1⁄4 29 43 27 1⁄4 31 7⁄8 39 7⁄8 44 3⁄4 52 1⁄8 62 5⁄8 49 5⁄8 58 75 3⁄4
12 12 16 1⁄4 16 1⁄4 24 24 24 24 24 24 30 30 30
⁄ ⁄ 1⁄2 1⁄2 1 1 1 1 1 1 1 11⁄4 11⁄4
37 46 82 103 104 114 210 240 242 275 398 449 630
41 50 96 116 127 137 235 246 248 306 428 480 660
43 45 90 110 146 167 224 244 266 296 427 476 645
12
12
1 System Connection for models AX-15 through AX-100 (vertical and horizontal) and models AX-120V through AX-240V are NPTF, models AX-260 through AX-280 (vertical and Horizontal) and AX-120 through AX-240 are NPTM. * To specify vertical models AX -15V – AX-280V, include V after the model number; other options available on horizontal models: • BullsEye Sight Glass • Seismic Anchor Brackets
L Series EXTROL® • Maximum working pressure is 125 psig
• Replaceable bladder design • Designed and constructed per ASME Section VIII, Division 1 standards
• Available with optional 175 or 250 psig for high-pressure applications
• Free-standing on integral floor stands
• Maximum operating temperature is 240°F
• Easily installed
L Series
• Factory pre-charged to 12 psig
L-Series Specifications
LBC-Series Specifications
Model Number
Tank Volume (Gallons)
A Height (Inches)
B Diameter (Inches)
C Standard (Diameter)
System Conn. 1 (Inches)
Shipping Weight (lbs.)
200-L 300-L 400-L 500-L 600-L 800-L 1000-L 1200-L 1400-L 1600-L 2000-L 2500-L 3000-L 3500-L 4000-L
53 80 106 132 158 211 264 317 370 422 528 660 792 925 1057
367⁄8 507⁄8 643⁄4 78 633⁄4 813⁄4 73 853⁄8 973⁄4 691⁄8 84 1003⁄8 1181⁄8 111 1241⁄2
24 24 24 24 30 30 36 36 36 48 48 48 48 54 54
19 19 19 19 24 24 30 30 30 42 42 42 42 42 42
1 1 1 1 11⁄2 11⁄2 11⁄2 11⁄2 11⁄2 11⁄2 11⁄2 2 2 2 2
192 268 309 328 510 565 691 779 905 1,183 1,264 1,445 1,630 2,110 2,230
System Connection is NPTF
LBC Series
Model Number
Tank Volume (Gallons)
Accept. Volume (Gallons)
A Height (Inches)
B Diameter (Inches)
System Conn. 1 (Inches)
Shipping Weight (lbs.)
35-LBC 50-LBC 85-LBC 100-LBC 130-LBC 165-LBC 200-LBC 300-LBC 400-LBC 500-LBC 600-LBC
10 13 22 26 34 44 53 80 106 132 158
10 11 11 11 27 27 27 27 53 53 53
3813⁄16 3813⁄16 377⁄8 421⁄8 377⁄8 427⁄8 407⁄8 56 685⁄8 821⁄2 67
10 12 16 16 20 20 24 24 24 24 30
1 1 1 1 1 1 1 1 1 1 1
65 72 88 94 130 140 192 230 274 308 442
System Connection is NPTF
1
1
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Precise Sizing
Precise Sizing of EXTROL® & RADIENT EXTROLTM
Table 1. Net Expansion of Water
Things you must know:
Max.Sys. Temp. °F
40°F
50°F
60°F 70°F 80°F 90°F 100°F 110°F 120°F 130°F 140°F 150°F 160°F 170°F 180°F 190°F 200°F 210°F 220°F 230°F 240°F
.0005 .00149 .00260 .00405 .00575 .00771 .0100 .0124 .0150 .0179 .0209 .0242 .0276 .0313 .0351 .0391 .0434 .0476 .0522
.0049 .00143 .00254 .00399 .00569 .00765 .0099 .0123 .0149 .0178 .0208 .0241 .0275 .0312 .0350 .0390 .0433 .0475 .0521
1. Total System Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . .(1)_____ gallons 2. Minimum System Temperature . . . . . . . . . . . . . . . . . . . .(2)_____°F 3. Maximum System Temperature . . . . . . . . . . . . . . . . . . .(3)_____ °F 4. Minimum Operating Pressure at Expansion Tank . . . . . .(4)_____ psig 5. Maximum Operating Pressure at Expansion Tank . . . . .(5)_____ psig
Selection of Expansion Tank: 6. Find and enter "Net Expansion Factor" . . . . . . . . . . . . . . . .(6)_____ (see table 1) 7. Amount of Expanded Water = line (1) x line (6) . . . . . . . . . .(7)_____ gallon 8. Find and enter "Acceptance Factor” . . . . . . . . . . . . . . . . . .(8)_____ (see table 2) 9. Minimum Total Tank Volume = line (7) ÷ line (8) . . . . . . . . . .(9)_____ gallons 10. Using Specifications on pages 6 and 7, select an Expansion Tank that is at least equal to line (9) for "Total Volume" and line (7) for Max. Expanded Water Acceptance Gallons. Mulitiple tanks may be required.
Minimum System Temperature °F 60°F 70°F 80°F 90°F
— .00094 .00204 .00350 .00520 .00716 .0095 .0118 .0145 .0173 .0204 .0236 .0271 .0307 .0346 .0386 .0428 .0471 .0517
— — .00111 .00256 .00426 .00622 .0086 .0109 .0135 .0164 .0194 .0227 .0261 .0298 .0336 .0376 .0419 .0461 .0507
— — — .00145 .00315 .00511 .0074 .0098 .0124 .0153 .0181 .0216 .0250 .0287 .0325 .0365 .0408 .0450 .0496
— — — — .00170 .00366 .0060 .0083 .0110 .0133 .0165 .0201 .0236 .0272 .0311 .0351 .0393 .0436 .0482
100°F
— — — — — .00196 .0043 .0066 .0093 .0121 .0148 .0184 .0219 .0255 .0294 .0334 .0376 .0419 .0465
Note: For ethylene glycol and for propylene glycol contact AMTROL technical services.
Table 2. Acceptance Factors* Max.Oper. Pressure at Tank (psig)
Minimum Operating Pressure at Tank (psig) 5
10
12
15
20
30
40
50
60
70
80
27 30 35 40 45 50 55 60 65 70 75 80 90 100 110
0.527 0.560 0.604 0.640 0.670 0.696 0.717 0.736 0.753 0.767 0.780 0.792 0.812 0.828 0.842
0.408 0.447 0.503 0.548 0.586 0.618 0.646 0.669 0.690 0.708 0.725 0.739 0.764 0.785 0.802
0.360 0.403 0.463 0.512 0.553 0.587 0.617 0.643 0.665 0.685 0.702 0.718 0.745 0.767 0.786
0.288 0.336 0.403 0.457 0.503 0.541 0.574 0.602 0.627 0.649 0.669 0.686 0.716 0.741 0.762
0.168 0.224 0.302 0.366 0.419 0.464 0.502 0.536 0.565 0.590 0.613 0.634 0.669 0.698 0.723
— — 0.101 0.183 0.251 0.309 0.359 0.402 0.439 0.472 0.502 0.528 0.573 0.610 0.642
— — — — 0.084 0.155 0.215 0.268 0.314 0.354 0.390 0.422 0.478 0.523 0.561
— — — — — — 0.072 0.134 0.188 0.236 0.279 0.317 0.382 0.436 0.481
— — — — — — — — 0.062 0.118 0.167 0.211 0.287 0.347 0.401
— — — — — — — — — — 0.056 0.106 0.191 0.261 0.321
— — — — — — — — — — — 0.096 0.174 0.241
* Acceptance factors based on expansion tank being charged to minimum operating pressure while empty of liquid.
Corporate Headquarters 1400 Division Road, West Warwick, RI USA 02893 Telephone: 401-884-6300 • Fax: 401-884-5276 AMTROL Canada, Ltd. 275 Shoemaker Street, Kitchener, Ontario N2E 3B3 Telephone: 519-478-1138 • Fax: 519-748-4231
w w w . a m t r o l . c o m The AMTROL® logo EXTROL® Therm-X-Trol® and Fill-Trol® are registered trademarks of AMTROL Inc. In the interest of continuous development, AMTROL Inc. and it’s subsidiaries reserve the right to alter designs and specifications without prior notice.
Part # 9003-031 Rev. B MC# 2680 (9/05)
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©2005 AMTROL Inc. Printed in USA