Abstract: A valve assembly comprising three main body parts removably secured together to permit ready assembly and disassembly; one part (11) incorporating a diverter valve in the form of a ceramic cartridge made of a plurality of discs (20, 21, 22); a further part having a vacuum breaker or back-flow preventer (42) comprising a freely movable check valve (45) located in an inlet flow path, for travel between upper and lower valve seats in response to changes in atmospheric pressure and flow direction; and when desired a pop-up drain or waste control rod (15) having no integral guide means associated therewith and operating smoothly and reliably while being inexpensive and simple to manufacture. The assembly may be adapted to receive a decorative escutcheon which permits its use in a wide variety of applications.

Abstract: A transfer-diverter valve assembly is provided including vacuum breaker and back-flow prevention structure. The valve is formed as a single unit for mounting on the deck or flange of a tub, bath or similar fixture and is designed for ready installation as well as ready access to the unit for maintenance or replacement. The valve assembly includes a manually actuated diverter valve for transferring liquid flow from an inlet to one or another of multiple outlets, with a back-flow preventer/vacuum breaker valve located in an inlet flow path and actuatable by changes in fluid flow pressure and direction or atmospheric pressure. In addition, a back-flow preventer valve is located in a first outlet flow path and normally biased to close the inlet flow path, but opens in response to flow from the inlet.