Amtrol ST-452C, ST-456C, ST-454C, ST-451C, ST-453C User Manual
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THERM-X-TROL
CHARGING
®
Thermal Expansion: Full Acceptance Bladder ST-440C and ST-450C Series ASME
250 PSIG Working Pressure
Construction
Shell Steel
Bladder Material Heavy Duty Butyl NSF/ANSI 61
Bladder Thickness .100 In Minimum
System Connection Bronze
Finish Red Oxide Primer
Air Valve Schrader Valve w/ EPDM Seat
Factory Precharge 55 PSIG (3.8 bar)
Application
• For use in closed, potable water
systems to control pressure
build-up.
• Full acceptance replaceable
bladder design.
• Optional sight glass and seismic
restraints available.
A
VALV E
• Designed and constructed
per ASME Code Section VIII,
Performance
Maximum Operating Temperature 240°F (115°C)
Maximum Working Pressure 250 PSIG (17.2 bar)
Warranty 1 Year
Division 1.
SYSTEM
CONNECTION
E
ASME Models
Model
Number
Tank
Volume
Gal Lit In mm In mm In mm In mm In mm In Lbs Kg
Max.
Accept.
Factor
A
Tank Diameter
B
Tank HeightCSystem Conn. HeightDConn. CenterlineEStand Diameter
ST-447C 53 200 1.0 24 610 45 1143 2 51 3¾ 95 19 483 2 370 168
ST-448C 80 300 1.0 24 610 59 1498 2 51 3¾ 95 19 483 2 492 223
ST-449C 106 400 1.0 24 610 73 1854 2 51 3¾ 95 19 483 2 510 231
ST-450C 132 500 1.0 24 610 87 2210 2 51 3¾ 95 19 483 2 570 259
ST-451C 158 600 1.0 30 762 73 1854 3½ 89 5½ 140 24 610 2 815 370
ST-452C 211 800 1.0 30 762 91 2311 3½ 89 5½ 140 24 610 2 1005 456
ST-453C 264 1000 1.0 36 914 86 2184 4½ 114 7 178 30 762 3 1100 499
ST-454C 317 1200 1.0 36 914 98 2438 4½ 114 7 178 30 762 3 1265 574
ST-455C 370 1400 1.0 36 914 110 2794 4½ 114 7 178 30 762 3 1350 612
ST-456C 422 1600 1.0 48 1219 82 2083 7½ 191 7⅛ 178 42 1067 3 1660 753
ST-457C 528 2000 1.0 48 1219 97 2464 7½ 191 7⅛ 178 42 1067 3 2230 1012
All dimensions and weights are approximate.
System
Conn.
(NPTF)
Shipping
Weight
B
D
C
Job Name _____________________________________
Engineer _____________________________________
Contractor _____________________________________
P.O. No. _____________________________________
Sales Rep. _____________________________________
Model No. _____________________________________
34
Amtrol Inc., 1400 Division Road, West Warwick, RI 02893 USA T: 401.884.6300 www.amtrol.com
Notes _________________________________
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BLADDER ONLY
MC 4400 (06/15)
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