Abstract: The disclosure discloses a condensing heat exchanger and a water heating/heating device thereof. The condensing heat exchanger includes: a housing including a first end portion and a second end portion opposite to each other, and a side wall arranged between the first end portion and the second end portion, the second end portion being provided with a mounting portion for mounting a combustor; a smoke outlet arranged on the housing; a heat exchange component arranged inside the housing; and a first heat insulating member arranged close to the first end portion. A first gap is provided between the first heat insulating member and the first end portion, and at least part of smoke which has exchanged heat with the heat exchange component can flow through the first gap and be discharged from the smoke outlet.

Abstract: A booster unit (40) and a reverse osmosis filtration system (100). The booster unit (40) includes: a booster pump (45), wherein the pump fluid outlet (4512) is connected to a fluid outlet port (P2); and a housing. The housing includes an outer housing (41) and an inner housing (42) at least partially mounted in the outer housing (41). The booster pump (45) is provided in an inner cavity of the inner housing (42). A fluid channel is formed between the outer housing (41) and the inner housing (42); a fluid inlet of the fluid channel is connected to a fluid inlet port (P1) of the booster unit (40), and a fluid outlet of the fluid channel is connected to a pump fluid inlet (4511) of the booster pump (45). The reverse osmosis filtration system (100) comprises the booster unit (40).

Abstract: The present disclosure relates to a filter head (20, 20A, 20B), a filter (1) and a filter assembly (100, 200). The filter head (20, 20A, 20B) includes: a filter head housing (30, 30A, 30B); a valve (40) mounted in an inner cavity of a housing body (31, 31A, 31B); and a filter head base (50) fixedly mounted to the filter head housing (30, 30A, 30B) so as to confine the valve (40)) in the filter head housing (30, 30A, 30B). The housing body (31, 31A, 31B) is provided with a raw water port (P1), a first water outlet port (P2) and a second water outlet port (P3). The valve (40) is configured to be rotatable relative to the filter head housing (30, 30A, 30B) to an open position or a closed position. In the open position, an inner cavity of a valve body (41) is in fluid communication with the raw water port (P1), the first water outlet port (P2) and the second water outlet port (P3).

Abstract: A contactor system includes a plurality of contactor panels. Each contactor panel includes a frame member and a membrane array adapted to be received within the frame member. The membrane array defines a first end portion, a second end portion, and a plurality of hollow fibers. The contactor system also includes a first manifold in selective fluid communication with the first end portion of the membrane array of each contactor panel. The contactor system further includes a second manifold in direct fluid communication with the second end portion of the membrane array of each contactor panel. The contactor system includes a controller configured to provide selective fluid communication between the first manifold and the first end portion of the membrane array of each contactor panel.

Abstract: A contactor module for a contactor panel includes a frame member and a contactor media coupled to the frame member. The contractor module defines a first side and a second side. The contactor media includes at least one first membrane array including a plurality of first hollow fibers extending along a first fiber axis. The at least one first membrane array defines a first axis. Further, the contactor module includes at least one second membrane array including a plurality of second hollow fibers extending along a second fiber axis. The at least one second membrane array defines a second axis. The at least one first membrane array and the at least one second membrane array is disposed such that a first inclination angle is defined between the first axis and the second axis. Moreover, the first inclination angle is greater than zero degree and less than 180 degrees.

Abstract: Described are water-on-water valves for use in reverse osmosis filtration systems. The water-on-water valves are regulated by the pressure in a product line, which contains fluid from a product line of the filter module and/or the product side of a water-on-water storage tank. Exemplary valves are shuttle valves that are regulated by the pressure downstream of the product side of a reverse osmosis filter module. The valves may comprise a piston within a housing, and an end of the piston may have an enlarged diameter relative to the maximum diameter of the remainder of the piston. The body of the piston may have sections of differing diameters, where the smaller diameter sections form flow channels, or the body may a diameter that is substantially the same along its length in conjunction with gratings and flow channels.

Abstract: Described are water-on-water valves for use in reverse osmosis filtration systems. The water-on-water valves are regulated by the pressure in a product line, which contains fluid from a product line of the filter module and/or the product side of a water-on-water storage tank. Exemplary valves are shuttle valves that are regulated by the pressure downstream of the product side of a reverse osmosis filter module. The valves may comprise a piston within a housing, and an end of the piston may have an enlarged diameter relative to the maximum diameter of the remainder of the piston.

Abstract: Described are water-on-water valves for use in reverse osmosis filtration systems. The water-on-water valves are regulated by the pressure in a product line, which contains fluid from a product line of the filter module and/or the product side of a water-on-water storage tank. Exemplary valves are shuttle valves that are regulated by the pressure downstream of the product side of a reverse osmosis filter module. The valves may comprise a piston within a housing, and an end of the piston may have an enlarged diameter relative to the maximum diameter of the remainder of the piston. The body of the piston may have sections of differing diameters, where the smaller diameter sections form flow channels, or the body may a diameter that is substantially the same along its length in conjunction with gratings and flow channels.

Abstract: Provided are electrochemical devices that are rechargeable, where the regeneration techniques are based on a batchwise application of current or current density to the cells, where there are a service mode where no current or current density is applied and a recharge mode where a current or current density is applied. Electrochemical and EDI systems according to the embodiments herein are suitable for deionization and/or purification of typical municipal tap quality water in applications where demand for purified, low-TDS water is intermittent. Such operations avoid the use of chemical additions for regeneration purposes. In addition the cells provided herein are amenable to small footprints for consumer and commercial applications such as: dishwashers, washing machines, coffee and espresso makers, ice makers, steam tables, car wash water sources, and steamers.

Abstract: Described are water-on-water valves for use in reverse osmosis filtration systems. The water-on-water valves are regulated by the pressure in a product line, which contains fluid from a product line of the filter module and/or the product side of a water-on-water storage tank. Exemplary valves are shuttle valves that are regulated by the pressure downstream of the product side of a reverse osmosis filter module. The valves may comprise a piston within a housing, and an end of the piston may have an enlarged diameter relative to the maximum diameter of the remainder of the piston.

Abstract: The present disclosure relates to a new multi component counter top water filtration system having two filtration media cartridges, one media cartridge being replaceable at least twice before the second media cartridge exceeds its useful life and requires replacement and includes a mechanism for disengaging the o-rings associated with the operative connection of the inner filter media cartridge with the outer filter media cartridge without rotation thereof during replacement of the inner filter media cartridge and includes the separation of the plumbing and electronic components wherein the lower housing unit houses the plumbing components such as the water filtration pressure vessel, tubing and flow indication signaling device and the upper unit houses the electronics component and filtration methods related thereto and methods of operating same.

Abstract: The present disclosure relates to a new multi component counter top water filtration system having two filtration media cartridges, one media cartridge being replaceable at least twice before the second media cartridge exceeds its useful life and requires replacement and includes a mechanism for disengaging the o-rings associated with the operative connection of the inner filter media cartridge with the outer filter media cartridge without rotation thereof during replacement of the inner filter media cartridge and includes the separation of the plumbing and electronic components wherein the lower housing unit houses the plumbing components such as the water filtration pressure vessel, tubing and flow indication signaling device and the upper unit houses the electronics component and filtration methods related thereto and methods of operating same.