Abstract: A dosing system for delivering a dosing fluid includes a dosing manifold having a front panel and a rear panel with a plurality of channels and a plurality of inlet and outlet ports in fluid communication with corresponding channels. The front panel holds a plurality of flow control devices in fluid communication with corresponding channels to control the flow of the dosing fluid in the channels. A dosing pump is in fluid communication with the dosing manifold and is configured to pump the dosing fluid through the dosing manifold.

Abstract: A water control fixture includes a fixture body in fluid communication with a pressurized supply of hot water and a pressurized supply of cold water. The fixture body interconnects the supply of hot water and the supply of cold water. The fixture body has a spout outlet configured to dispense water from the fixture body. At least one operating valve is coupled to the fixture body for controlling a flow of water to the spout outlet. A bypass valve is disposed in the fixture body for controlling a recirculating flow of water through the fixture body. The bypass valve blocks and permits recirculating flow from the supply of hot water to the supply of cold water based on a temperature of the water.

Abstract: A water control fixture includes a fixture body in fluid communication with a pressurized supply of hot water and a pressurized supply of cold water. The fixture body interconnects the supply of hot water and the supply of cold water. The fixture body has a spout outlet configured to dispense water from the fixture body. At least one operating valve is coupled to the fixture body for controlling a flow of water to the spout outlet. A bypass valve is disposed in the fixture body for controlling a recirculating flow of water through the fixture body. The bypass valve blocks and permits recirculating flow from the supply of hot water to the supply of cold water based on a temperature of the water.

Abstract: A water control fixture includes a fixture body in fluid communication with a pressurized supply of hot water and a pressurized supply of cold water. The fixture body interconnects the supply of hot water and the supply of cold water. The fixture body has a spout outlet configured to dispense water from the fixture body. At least one operating valve is coupled to the fixture body for controlling a flow of water to the spout outlet. A bypass valve is disposed in the fixture body for controlling a recirculating flow of water through the fixture body. The bypass valve blocks and permits recirculating flow from the supply of hot water to the supply of cold water based on a temperature of the water.

Abstract: A faucet has a fixture body in fluid communication with a pressurized supply of hot water. The fixture body has a spout outlet configured to dispense water from the fixture body. At least one operating valve is coupled to the fixture body for controlling a flow of water to the spout outlet. A bypass valve is disposed in the fixture body for controlling a recirculating flow of water through the fixture body, where the bypass valve changes state when heated and when cooled to block and permit the recirculating flow of water based on a temperature of the water.

Abstract: A water control fixture having an operating valve and a thermostatically controlled bypass valve disposed in the fixture for bypassing water away from the fixture until the water temperature reaches a desired level. When pressurized water from the hot water heater reaches the desired temperature level at the fixture, the bypass valve closes and hot water is made available to the fixture. The bypass valve has a thermal actuator element that is thermally responsive to the temperature of the water. The fixture can have a housing with an interior chamber for operatively receiving the bypass valve. Various passages or channels can be provided to facilitate communication between the bypass valve and the water supply lines. Alternatively, the bypass valve can be positioned in the operating valve, including the moveable ball and the replaceable cylindrical valving cartridge types. A system using the in-fixture bypass valve is also provided.

Abstract: A thermostatically controlled bypass valve for bypassing water away from a hot water valve until the water temperature reaches a desired level at a fixture in use for home or industrial applications. The bypass valve has a valve body with a thermally sensitive actuator disposed between the hot water inlet and discharge ports and the cold water inlet and discharge ports that is thermally responsive to the temperature of the water. A bias spring pushes against the piston on the thermal actuator to close the actuator and open a passage between the cold and hot water sides when water needs to be bypassed. When the water from the hot water heater reaches the desired temperature level at the bypass valve, the bypass valve closes and hot water is made available to the hot water side of the fixture. Until then, the thermal actuator remains open and cold or tepid water is allowed to bypass the hot water side of the fixture.

Abstract: A variable width pump impeller that allows for the selection of a fixed impeller width from two or more possible impeller widths. The impeller comprises a first impeller shroud having a plurality of impeller vanes and a second impeller shroud having an equal number of flat surfaces and one or more sets of grooves, each set comprising an equal number of recessed grooves for receiving the vanes of the first impeller shroud. The manufacturer selects between a flow channel formed by the outer edge of the vanes joining against the flat surfaces or one or more flow channel widths formed by vanes being received in the grooves. Once formed, the impeller has a fixed impeller width. Use of the impeller reduces the number of manufacturing molds required to make impellers of different widths and reduces the need to have an inventory of different impeller components.