4 Gal. Hydronic Expansion Tank for Boiler System with Valve

Features

• Acceptance Factor: 0.57
• Warranty: 5 Years Limited
• Diameter: 11 in
• Diaphragm Type: Heavy Duty Butyl/EPDM
• Domestic/Import: Domestic
• Height: 16 in
  • The AMTROL FILL-TROL system consists of a specially adapted EXTROL pre-pressurized, diaphragm-type expansion tank, and the FILL-TROL, a specially designed, automatic, fill valve
  • Sealed air cushion - factory pre-charged and 100 percent tested
  • 12 psig factory pre-chargedd
  • Strong, deep-drawn steel tank
  • Projection-welded air stem maintains precharge setting
  • Tank pressure controls system fill
  • Spring-loaded check valve
  • Automatic shut-off valve spring
  • Removable strainer
  • Cold water supply
  • Expansion bypass
  • Accepts expanded water as system temperature rises to reduce pressure build-up
  • Automatic shut-off valve
  • Eliminates need for a separate, automatic fill valve
  • Fully adjustable
  • Helps reduce energy consumption and reduces system wear
  • Automatic air vent eliminates system air
  • Air purger separates air from water
  • System connection sets the point of no pressure change
  • Watertight reservoir for expanded water