The PRESSURE PAL is ideal for feeding and pressurizing closed hydronic systems that do not require cold static fill pressures higher than 25 psig. It is compatible with both water and glycol/water solutions. Perfect for small boiler/chiller systems, snow/ice melt circuits, outside air heating/cooling glycol coils, solar heating systems.


  • (A) 1/2” FNPT Expansion Tank Connection with ball valve
  • (B) 1/2” FNPT Fill/Feeder Inlet Connection with ball valve
  • (C) 1/2” FNPT System Connection with ball valve
  • (D) 1/4” Manual Air Vent
  • (E) 1/4” FNPT Connection


  • Welded steel body
  • (B) Brass fittings