Abstract:
A diverter valve for a faucet having a spray function is provided. The diverter valve includes a seal to engage a valve housing and prevent back siphonage. There is also a piston head and valve seat in the diverter valve to provide secondary protection against back flow.
Abstract:
A valve includes a distributor with four ports and two positions. In a first position, a first non-return valve allows only circulation of a fluid from the first port toward the third port, while the second port and the fourth port are directly in communication with one another. In a second position, the third port and the fourth port are directly in communication with one another, while a second non-return valve allows only circulation of fluid from the third port and the fourth port in communication toward the first port.
Abstract:
A mixing valve has a housing, a valve cartridge fixed in the housing and having valve elements movable to vary rate and temperature of flow through the cartridge, and a handle connected to the valve elements and movable through a predetermined angular displacement about a temperature-adjustment axis to vary the temperature of flow through the cartridge and a flow-adjustment axis orthogonal to the temperature-adjustment axis to vary the rate of flow through the cartridge. A sleeve-like casing surrounding the cartridge is rotatable on the housing about one of the axes and is traversed by the handle. Interengaging formations on the casing and on the housing axially retain the casing on the housing except in a predetermined angular position of the casing on the housing relative to the one axis. The predetermined angular position corresponds to an orientation of the casing on the housing outside any position assumed by the casing during pivoting of the handle through the predetermined angular displacement about the one axis. Thus the casing can be installed on the housing in the predetermined angular position and then rotated out of the predetermined angular position to lock it axially on the housing.
Abstract:
A rotary valve has a stator with ports for connection to a vacuum source and to a plurality of vacuum actuators, and a housing having a central hub. A selector residing between the stator and the housing comprises a resilient body insert molded to a steel drive plate having a central drive opening for receiving a drive shaft and an array of holes around the central opening. On one side of the plate the body comprises a valve member in contact with the stator and defines passages to selectively interconnect the ports, and on the other side of the plate the body comprises a resilient tubular spring surrounding the hub and pressing against the housing to bias the valve member against the stator.
Abstract:
A rotary valve assembly is disclosed in which a rotary valve member is located within a casing having one or more fluid inlets and a plurality of fluid outlets. The rotary valve member has a fluid conduit which extends in a generally radial direction and which communicates with the fluid inlet. Fluid orifices communicate with the fluid conduit and exit through opposite sides of the rotary valve member to thereby minimize, or eliminate altogether, axial forces acting on the rotary valve member. Fluid outlet passages communicate with the two fluid orifices during at least pan of the rotation of the rotary valve member to direct the pressurized fluid to the valve outlets. The rotary valve may include a pair of rotary valve members drivingly connected to each other such that they rotate synchronously. The connection may include gear teeth formed on the adjacent peripheries of the rotary valve members such that rotation of one of the valve members causes rotation of the other. Each valve member may have a separate fluid inlet and separate fluid outlets.
Abstract:
A valve for use with a water filtration system has a housing and a piston contained therein. The piston has a bypass position, a shut-off position, an inservice position, and a back-flush function in relation to the housing. These functions are accomplished by maneuvering a cylinder inside a housing in a manual fashion with the appropriate handle. The housing has various ports which contact various apertures within the cylinder to provide for such a flow.
Abstract:
The invention covers a not and cold water mixer valve with thermostatic regulation, which comprises a valve body enclosing a ceramic-disc valve assembly and a thermosensitive bulb (30) arranged axially, centered and contiguos with the valve assembly, susceptible of axial dilatation and free from any control functions for the opening/closing of the valve.
Abstract:
A suitable design is given of a closure damper for a sanitary water fitting, especially in the form of a single-handle mixing unit, with a casing, an activation handle, and with a control unit presenting a disk, piston, balls, or the like, as well as a closure damper to extend the closure time and reduce the closure rate arranged between the handle and the fitting casing, whereby the closure damper is designed as a piston and cylinder unit. It is provided for watertight membrane (20) to surround piston and cylidner unit (16, 17) outside, connected with cylinder (16) on the one hand and piston (17) on the other, watertight in both cases, which forms membrane chamber (24) when piston (17) is pushed in, and a flow connection exists between inside space (25) of cylinder (16) sealed against piston (17) and the outside of cylinder (16) encircled by membrane (20).
Abstract:
A line diverter has a valve body (2) comprising at least two channels (3), the valve body (2) being displaceable within a casing (1) provided with at least three tubular connection pieces (4). The casing (1) is gastight. In between valve body (2) and casing (1) there is provided a free gas chamber (12), within which the valve body (2)--with the exception of the front surfaces assigned to the end surfaces (8) of the channels (3)--is so arranged that it does not have any contact with the inner surfaces of the casing. A sealing arrangement, which may be employed also for one-channel or multi-channel rotary diverters, comprises a sealing plate (7) within the casing (1), the sealing plate being provided with at least one open passage area corresponding to the channel end surfaces (8). The sealing plate (7) is compressed against the channel end surface(s) by a force acting perpendicularly to the direction of displacement.
Abstract:
A sanitary mixing valve for controlling the flow and mix of hot and cold water supplied respectively from a hot water inlet and a cold water inlet. The valve includes a valve body coupleable to the hot and cold water inlets and having a water outlet. A disk packet is supported on the valve body and includes a control disk. The control disk includes a mixing chamber for receiving a mix of the hot and cold water. A temperature-dependent control element is positioned on the control disk to directly measure the temperature of the mixed water in the mixing chamber. The temperature of the water emerging from the water outlet is regulated according to the measured temperature.