Description
Bell & Gossett HFT-15 Hydronic Heating Diaphragm Expansion Tank
The Bell & Gossett 1BN326 (Model HFT-15) is a reliable diaphragm-style expansion tank engineered for residential and light commercial hydronic heating systems. Factory precharged and ready to install, this tank absorbs pressure fluctuations caused by thermal expansion of system water, protecting components and maintaining system efficiency.
Key Features
- 2.0 gallon total tank volume for effective pressure management in hydronic systems
- 1/2″ Male NPT system connection for straightforward installation
- Factory precharged to 12 PSI — ready for immediate use right out of the box
- 100 PSI maximum working pressure for safe, dependable operation
- 240°F maximum operating temperature suits a wide range of hydronic heating applications
- Non-ASME construction for residential and light commercial use
- Internal diaphragm design separates system water from the air charge, preventing waterlogging and extending service life
Product Specifications
- Model: HFT-15
- SKU: 1BN326
- Tank Volume: 2.0 Gallons
- System Connection: 1/2″ Male NPT
- Max Working Pressure: 100 PSI
- Max Operating Temperature: 240°F
- Factory Precharge Pressure: 12 PSI
- Construction: Non-ASME
- Type: Diaphragm Expansion Tank
- Application: Hydronic Heating
Why Choose the Bell & Gossett HFT-15?
Bell & Gossett has been a trusted name in hydronic heating for decades. The HFT-15 expansion tank is designed to control system pressure rise resulting from the thermal expansion of water in closed-loop heating systems. Its durable diaphragm construction ensures the air charge remains separated from system fluid, preventing corrosion of the tank interior and maintaining accurate precharge pressure over the life of the system. The compact 2.0-gallon size and standard 1/2″ MNPT connection make it an ideal fit for residential boilers and smaller commercial hydronic installations.
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