A plumbing system pressure protection valve assembly that utilizes a unitary body to connect a hot water tank to a cold water supply, a vacuum breaker, and an expansion tank. The assembly includes two ball valves coupled to the unitary body to isolate the hot water tank from the cold water feed and to isolate and permit draining of the expansion tank. The assembly also includes a rod and foot coupled to a tab on the unitary body to provide support for the expansion tank service valve assembly.

The invention relates to an economizer device having an expansion vessel provided with a pressure sensor Cp, a temperature sensor CT on a hot-water intake Ec, four valves, a non-return valve preventing the water from the cold-water intake EF from entering the expansion vessel, and an electronic board connected to the sensors and to the valves. The economizer device stores the cooled water coming from the hot-water intake in the expansion vessel until the water reaches a set temperature that is sufficient for supplying a point of use of a domestic installation using hot water. When the expansion vessel fills, the stored cooled water is preferably used as cold water to supply either the point of use with cold water or else another domestic installation provided to use cold water.

Disclosed is an expansion vessel for containing and delivering a liquid through compression by a gas, comprising a main body, a membrane, an inlet for the entry of the liquid and a valve for the inlet of the gas. The first edge has a substantially L shape. Dislcosed also is a pump for systems which comprises the expansion vessel and a method for making the above-mentioned expansion vessel.

A plumbing system pressure protection valve assembly that utilizes a unitary body to connect a hot water tank to a cold water supply, a vacuum breaker, and an expansion tank. The assembly includes two ball valves coupled to the unitary body to isolate the hot water tank from the cold water feed and to isolate and permit draining of the expansion tank. The assembly also includes a rod and foot coupled to a tab on the unitary body to provide support for the expansion tank service valve assembly.

An expansion tank wall mount bracket apparatus capable of being mounted in multiple assembly configurations and supporting multiple expansion tanks.

Disclosed is an expansion vessel for containing and delivering a liquid through compression by a gas, comprising a main body, a membrane, an inlet for the entry of the liquid and a valve for the inlet of the gas. The first edge has a substantially L shape. Disclosed also is a pump for systems which comprises the expansion vessel and a method for making the above-mentioned expansion vessel.

A compliant containment device for use in a hydronic system, the compliant containment device including a vessel including an inlet and an outlet, and valve operably coupled to at least one of the inlet and outlet, wherein the valve is configured to operate between an open and closed position based in part on a temperature.

In a split system heat pump cooling and heating system, an auxiliary hot water storage tank is provided as an energy storage bank. Two sets of coils run through this storage tank, a first set carrying hot refrigerant from the heat pump to deposit energy and a second set carrying hot potable water to remove energy. Valve and switch matrixes are operated at the heat pump to provide hot potable water from the energy storage bank during both normal space heating and cooling operations of the heat pump.

An expansion tank which comprises a tank having a predetermined volume capacity; an expandable elastomeric bladder in the tank, partitioning tank volume into a liquid-containing portion for holding liquid and a gas-containing portion for holding a gas under a pressure that defines a normal pressurized gas volume when the liquid-containing portion holds a predetermined liquid volume; and a proximity sensor mounted to the tank at the gas-containing portion thereof and adapted to emit an alarm signal when volume of the gas-containing portion is reduced.

An expansion tank recovery apparatus for use in extracting a thermal expansion tank includes a container body having a closed bottom wall and an upstanding side wall that together define an interior area configured to selectively receive the expansion tank. A pair of support strap assemblies is coupled to sides of the side wall and extend upwardly. Upper ends include hook portions that are selectively coupled to an overhead fluid pipe to which a thermal expansion tank is coupled. The support assemblies are length adjustable such that the container body is selectively lowered from the hook portions when respective position adjustment mechanisms are actuated and the support assemblies are operatively lengthened. In one embodiment, the position adjustment mechanism is a ratchet strap. In use, the container body may be positioned beneath the expansion tank, the tank disconnected from the pipe, received into the container body, and lowered to the floor.