Description
The Bell & Gossett 1BN346LF is the PTA-5 pre-pressurized expansion tank engineered specifically for potable water systems. Built to ASME standards, this tank is designed to absorb the thermal expansion of heated water in closed domestic plumbing systems, protecting pipes, fixtures, and water heaters from damaging pressure buildup.
Key Features
- ASME-rated construction for potable water applications
- Pre-pressurized design for straightforward installation and reliable performance
- Engineered to handle thermal expansion in closed domestic water systems
- Helps protect water heaters, pipes, and plumbing fixtures from overpressure damage
- Durable tank construction built to Bell & Gossett’s trusted quality standards
- Suitable for residential and light commercial potable water installations
Application
The PTA-5 expansion tank is ideal for use in closed-loop domestic hot water systems where a backflow preventer or pressure-reducing valve creates a closed system. By accommodating the increased volume of water as it heats, the tank maintains safe system pressure and extends the service life of connected equipment.
Why Bell & Gossett
Bell & Gossett, a brand of Xylem, has been a trusted name in hydronic and plumbing system components for over a century. The PTA series expansion tanks reflect that legacy — delivering dependable, code-compliant performance for professional plumbing and HVAC contractors.
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