The Amtrol 500-L Expansion Tank is designed for closed, non-potable hydronic heating and chilled water systems. It is fully compatible with propylene glycol applications using mixtures up to 50%. Built with an ASME approved steel shell and a replaceable, full acceptance butyl bladder featuring the industry's thickest design at .100 inches minimum, this unit meets all ASME Code Section VIII, Division 1 standards. It includes an NPTF SA-105 steel system connection, a red oxide primer finish, and a Schrader air valve with EPDM seats. The tank has a factory pre-charge of 12 PSIG (.8 bar), a maximum operating temperature of 240 degrees F (115 degrees C), and a maximum working pressure of 125 PSIG (8.6 bar). Optional sight glass and seismic restraints are also available for the 500-L.
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| Manufacturer | Amtrol |
|---|---|
| Country | |
| Part number | 500-L |
| Inner Code | 4946366 |
| Product type | Expansion Tank |
|---|---|
| Factory Pre-Charge | 12 PSIG |
| Max. Operating Temperature | 240º F |
| Maximum Operating Temperature | 240°F (115°C) |
| Maximum Working Pressure | 125 PSIG (8.6 bar) |
| Shell | ASME Approved Steel |
| Bladder Design | Full Acceptance; Replaceable |
| Bladder Thickness | .100 In Minimum |
| System Connection | NPTF SA-105 Steel |
| Finish | Red Oxide Primer |
| Air Valve | Schrader Valve w/EPDM Seats |
| Factory Precharge | 12 PSIG (.8 bar) |