Description
The Bell & Gossett 1BN317LF (Model PT-5) is a factory-precharged diaphragm expansion tank engineered specifically for potable hot water systems. Designed to absorb the thermal expansion of heated water and maintain safe system pressure, this tank delivers reliable performance in residential and light commercial plumbing and hydronic applications where lead-free construction is required.
Key Specifications
- Tank Volume: 2.0 Gallons
- Maximum Working Pressure: 150 PSI
- Maximum Operating Temperature: 200°F
- Factory Precharged Pressure: 38 PSI
- Construction: Non-ASME
- Lead Free: Yes — compliant for potable hot water service
- Type: Diaphragm Expansion Tank
- Model: PT-5
- SKU: 1BN317LF
Product Highlights
- Lead-free construction ensures safe use in potable (drinking) water systems
- Factory precharged to 38 PSI for quick, convenient installation
- Flexible diaphragm design separates system water from the air charge, preventing waterlogging
- Rated for up to 150 PSI working pressure and 200°F operating temperature
- Non-ASME construction suitable for residential and light commercial applications
- Compact 2.0-gallon capacity ideal for smaller potable hot water systems
- Trusted Bell & Gossett quality for long-lasting, dependable hydronic system protection
Application
The PT-5 expansion tank is ideal for use in potable hot water heating systems, domestic hot water supply systems, and other closed-loop plumbing applications where thermal expansion control is required. Its lead-free design makes it fully compliant with regulations governing materials in contact with potable water.
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