Provided is a hot-water supply device. A process performed by a control device of the hot-water supply device includes: a step of shifting an action mode of the hot-water supply device to an instant hot-water mode; a step of measuring an amount of water X; a step of determining that another tap interruption occurs when the amount of water X is equal to or greater than a basic flow amount Y+α; a step of stopping action of a circulation pump; a step of re-learning the amount of water X when the amount of water X is less than a basic flow amount Y−β; a step of ending the instant hot-water circulation mode when an end condition of the instant hot-water mode is satisfied; and a step of measuring the amount of water X when the end condition of the instant hot-water mode is not satisfied.

A circulation pump assembly for a heating and/or cooling system includes an electric drive motor (108) and a connected pump housing (106) in which at least one impeller (118) is situated and which comprises a first inlet (112) and a first outlet (114). The pump housing (106) includes a second inlet (122) which is connected in an inside of the pump housing (106) at a mixing point (130) to the first inlet (112). A regulating valve (134), which is designed for regulating the mixing ratio of two flows mixing at the mixing point (130), as well as a control device, which controls the regulating valve (134) for regulating the mixing ration, are arranged in the pump housing (106). A hydraulic manifold is provided with such a circulation pump assembly.

Provided is a hot-water supply device. A process performed by a control device of the hot-water supply device includes: a step of shifting an action mode of the hot-water supply device to an instant hot-water mode; a step of measuring an amount of water X; a step of determining that another tap interruption occurs when the amount of water X is equal to or greater than a basic flow amount Y+α; a step of stopping action of a circulation pump; a step of re-learning the amount of water X when the amount of water X is less than a basic flow amount Y−β; a step of ending the instant hot-water circulation mode when an end condition of the instant hot-water mode is satisfied; and a step of measuring the amount of water X when the end condition of the instant hot-water mode is not satisfied.

A flow control device includes a body and a flow control element. The body includes a thermal conditioning passage disposed within a side wall, disconnected from a flow passage, and extending between a first conditioning port and a second conditioning port. The thermal conditioning passage has a first portion extending circumferentially around a first circumferential portion of the interior surface of the flow passage, a second portion axially spaced from the first portion by a first axial U-shaped bend and extending circumferentially around the first circumferential portion and a second circumferential portion of the interior surface of the flow passage to form a first circumferential U-shaped bend, and a third portion axially spaced from the second portion by a second axial U-shaped bend and extending circumferentially around the second circumferential portion of the interior surface of the flow passage. The thermal conditioning passage further including a radial passage connecting a central portion of the first circumferential U-shaped bend with one of the first and second conditioning ports.

Heat tracing systems and related methods are disclosed. An example valve includes a valve body defining a fluid flow passageway between a primary inlet and a primary outlet. The body valve has a first face adjacent the main inlet, the first face including a first groove. A first cover is positioned over the first groove to define a first heat tracing path. A secondary inlet is formed in the valve body and fluidly coupled to the first heat tracing path. A secondary outlet formed in the valve body and fluidly coupled to the first heat tracing path.

A drying apparatus includes a compartment for containing objects to be dried, a closed-loop air pathway and a regeneration heat exchanger. The closed-loop air pathway includes a cooling element and a heating element, and is configured to extract from the compartment air that includes moisture in the form of vapor, to evacuate heat energy from the extracted air to an external fluid flow by cooling using the cooling element so as to remove at least some of the moisture from the air, to reheat the air using the heating element, and to re-introduce the reheated air into the compartment. The regeneration heat exchanger is inserted in the closed-loop air pathway and is configured to transfer heat from the air extracted from the compartment to the air exiting the cooling element in the closed-loop air pathway.

A cooled isolation valve includes a valve body, a stationary element coupled to the valve body, and a movable closure element movable with respect to the stationary element between a closed position in which the movable closure element and the stationary element are brought together and an open position. One of the movable closure element and the stationary element includes a sealing element. In the closed position of the movable closure element, the sealing element provides a seal between the movable closure element and the stationary element. A fluid channel is formed in contact with the movable closure element and movable with the movable closure element with respect to the stationary element, such that a fluid in the fluid channel effects heat transfer in the movable closure element. A bellows of the isolation valve can include a metallic substrate with a ceramic coating.

A heating assembly for heating a liquid storage tank includes a heat exchanger tank supported in one wall of the storage tank to extend into the storage tank in contact with liquid stored therein. The heat exchanger tank contains a heat exchanger fluid therein which is heated by a burner tube extending through the heat exchanger tank whereby heat is only transferred to the liquid in the storage tank through the heat exchanger fluid. A controller actuates the burner head of the burner tube to maintain temperature of the heat exchanger fluid between upper and lower temperature limits. The operation of the burner head is interrupted in response to temperature of the liquid in the storage tank exceeding an upper limit, or fluid level in the heat exchanger tank being below a lower limit as determined by respective sensors.

Planar element adapted to form, when stacked with a plurality of other such elements, a heat exchanger, comprising an inlet region, a first zone adapted to direct flow from the inlet region towards a second zone, a second zone comprising at least one cutout in the plane of the planar element, adapted to accommodate a cooling core, a third zone, adapted to direct flow from the second zone towards an outlet region and an outlet region, the planar element comprising a first blockage protrusion disposed along a first group of said side edges, the first group comprising at least a side edge adjacent to said outlet region, and a second blockage protrusion disposed along a second group of said side edges, the second group comprising at least a side edge adjacent to said inlet region.

A flow control device includes a body and a flow control element. The body includes a thermal conditioning passage disposed within a side wall, disconnected from a flow passage, and extending between a first conditioning port and a second conditioning port. The thermal conditioning passage has a first portion extending circumferentially around a first circumferential portion of the interior surface of the flow passage, a second portion axially spaced from the first portion by a first axial U-shaped bend and extending circumferentially around the first circumferential portion and a second circumferential portion of the interior surface of the flow passage to form a first circumferential U-shaped bend, and a third portion axially spaced from the second portion by a second axial U-shaped bend and extending circumferentially around the second circumferential portion of the interior surface of the flow passage. The thermal conditioning passage further including a radial passage connecting a central portion of the first circumferential U-shaped bend with one of the first and second conditioning ports.