ASME Standard|NSF 61 Certified

• Series PTA expansion tanks are ASME-rated, pre-charged diaphragm-type vessels The Series PTA tank is designed to absorb the forces of expanding water and protect the domestic water system from pressure build up Residential and commercial applications Controls system pressure Protects plumbing fixtures Eliminates relief valve blow-off ASME construction FDA approved materials Stainless steel system connection Butyl diaphragm Polypropylene liner 0.302 in - 32 NC charging valve 11.4 gal acceptance volume

The Series PT expansion tank is designed to absorb the forces of expanding water and protect a potable water system from pressure build up. The FDA approved heavy duty butyl diaphragm with polypropylene liner (sizes PT-5 through PT-210V) and FDA approved heavy duty butyl bladder (sizes PT-451 through PT-457) completely isolate the water from the steel shell.