Bell & Gossett #PTA-20V 20 Gallon ASME Potable Water Expansion Tank

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About this part

The Bell & Gossett PTA-20V is a pre-charged diaphragm-style expansion tank designed to absorb expanding water volume and maintain system pressure in domestic hot water applications. Its FDA-approved materials isolate system water from the steel shell to prevent corrosion. The tank is constructed to ASME standards and helps protect fixtures from over-pressure and relief valve discharge.

20 gallon capacity
150 PSI maximum working pressure
200°F maximum operating temperature
Polypropylene liner, butyl diaphragm, steel shell, stainless steel system connection
Factory pre-charge 55 PSI
ASME Section VIII Division 1 construction
For potable hot water systems