Perma-Span Expansion Tank Series

Expansion Tanks for Potable Water, Residential and Commercial Hydronic Heating

Perma-Span Expansion Tanks are designed for the specific purpose of accommodating the natural expansion of water in a Hydronic Heating System.

  • Permanent Air Charge
  • Diaphragm Operated
  • Drawn Steel Tank Construction
  • Butyl Rubber Parabolic Diaphragm
  • B Maximum working pressure 100 PSI – Maximum temperature 240°F
  • Powder Coated Interior