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.
- 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
- Accepts expanded water as system temperature rises to reduce pressure build-up
- 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
- Water-tight reservoir for expanded water
- Sealed air cushion-factory precharged and 100% tested
- 12 psig factory precharged
- 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
- Fill gate stem
Expansion Tank Fill-Trol Automatic Fill 4.4 Gallon 100 Pounds per Square Inch Gauge 1/2″ NPT 110 for Closed Loop Hydronic Heating and Radiant Heating Applications