Description
The Bell & Gossett 1BN327 (Model HFT-30) is a hydronic heating diaphragm expansion tank engineered to absorb system pressure fluctuations and protect closed-loop heating systems from damage. Factory precharged to 12 PSI, this tank arrives ready for quick installation, reducing setup time on new installations and replacements alike.
Key Features
- 4.4-gallon tank volume provides reliable pressure buffering for residential and light commercial hydronic systems
- 1/2″ Male NPT system connection for straightforward integration with standard hydronic piping
- 100 PSI maximum working pressure for safe, dependable operation across a wide range of system conditions
- 240°F maximum operating temperature — compatible with high-temperature hydronic heating applications
- Internal diaphragm design separates system water from the air charge, preventing waterlogging and extending service life
- Factory precharged to 12 PSI, eliminating the need for field pressurization before installation
- Non-ASME construction suitable for residential and light commercial hydronic heating systems
Specifications
- Model: HFT-30
- SKU: 1BN327
- Tank Volume: 4.4 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
- Application: Hydronic Heating
Application
The Bell & Gossett HFT-30 expansion tank is ideal for use in closed-loop hydronic heating systems where thermal expansion must be safely accommodated. Its diaphragm design ensures the air charge remains isolated from system water, maintaining consistent precharge pressure over time and reducing maintenance requirements. Compatible with boilers, radiant heating systems, and other hydronic heating applications.
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