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Bell & Gossett ASME PTA Potable Water Tanks

Bell & Gossett Potable Water Diaphragm Expansion Tanks ASME (PTA). Please Contact Us For Lead Time & Pricing.

If you have questions you can also email your request to us at: Sales@NationalPumpSupply.com


The Series PTA expansion tank is an ASME constructed vessel designed to absorb the forces of expanding water and protect the domestic water system from pressure build up. PTA-5 through PT-210 are diaphragm tanks that have a FDA approved polypropylene liner and butyl diaphragm that isolate the water from the steel shell. The PTA-447 through PTA-457 are bladder tanks that utilize a FDA approved replaceable butyl bladder to isolate the system water from the steel shell.