If the circuit remains open (OL) at room temperature

A key technical advantage is the integral vent limiting orifice

What happens if I use the wrong MFD rating

Will this work with brands other than Heil Quaker

By utilizing a fixed orifice

Watts 0067370 Expansion Tank If the circuit remains openThe Watts 0067370 PLT 5 Expansion Tank is a professional grade solution engineered for potable water systems to manage thermal expansion. When water is heated in a closed system, it expands; this 2. 1 gallon tank utilizes a rugged flexible butyl diaphragm and an FDA approved polypropylene liner to absorb that excess volume. By stabilizing internal pressure, it prevents the frequent tripping of the T&P relief valve, protecting the integrity of