Amtrol 110-1 Fill-Trol Expansion Tank

How the Amtrak FILL-TROL 110 Expansion Tank System Works: Water enters the FILL-TROL valve pushing open the check valve and flows into the heating system. The automatic shut-off valve is kept open by the diaphragm pressing against the pressure plate raising the stem of the fill gate which compresses the automatic shut-off valve spring. When the heating system reaches fill pressure 12 psig the tank’s diaphragm depresses and the automatic shut-off valve is closed. Whenever system pressure falls below 12 psig the automatic shut-off valve is pressed open by the diaphragm. Make-up water flows into the system to restore pressure.

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Carrier: UPS/FedEx/USPS. Delivery Timescale: More than 90% of orders arrive in 10 business days after despatch.

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The following conditions must be met:

1. Items must be returned within 30 days after the purchase date.
2. Items must be unworn, undamaged and in original packaging.