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Flexcon Industries

Flexcon PH5 Thermal Expansion Tank 2 Gallon

Part Number: PH5
Alt. Part Number: PFT5, ST-5, TS-5, T-5, PLT-5
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The Flexcon PH5 2 Gallon Thermal Expansion Tank is a portable water expansion tank that has been designed to control safe pressures in a residential heating system. The tank utilizes a backflow valve to safe guard the unit. The Flexcon PH5 tank features a plastic liner and butyl rubber diaphragm to separate the system water from the tanks air pre-charge. To prevent corrosion the Flexcon uses a stainless steel nipple for the systems connection. The external paint not only gives the tank a sharp look, but also helps to prevent external corrosion. Every PH tank is comprehensively tested. 

  • Butyl rubber diaphragm
  • Pre-pressurized expansion tank
  • Designed for potable hot water systems
  • Eliminates relief valve spills
  • Controls pressure build-up
  • Protects plumbing fixtures
  • Extends water heater life
  • Eliminates hot water waste
  • Pre-charged to 40 psi
NOTE: Be sure to measure the system water pressure using a water pressure gauge, and make sure that the air pressure in the thermal expansion tank is the same as the system pressure. The thermal expansion tank is pre-charged to 40 psi. Verify the charge of the tank using a tank pressure gauge.

California residents Prop 65 Warning
This product contains materials known to the State of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov