A diverter valve which includes a valve body, an inlet, a plurality of outlets, an internal cavity to which the inlet and the outlets are connected, and a valve member which is movably positioned in the cavity. The valve member includes a through bore which is configured to connect the inlet with a corresponding one of the outlets for each of a plurality of operative positions of the valve member. In operation of the diverter valve, the valve member is movable between its operative positions to selectively connect the inlet with any one of the outlets.

A valve system for use with a cylinder having an extensible rod, includes a first valve assembly including a first inlet/outlet port, a check valve biased toward a closed state, the check valve having a check valve body at least partially receivable within a first port of the cylinder, a flow control valve positioned in series between the first inlet/outlet port and the check valve, and a first pilot port selectively communicable with a pressurized gas for opening the check valve. The valve system further includes a second valve assembly including a second inlet/outlet port, a second pilot port through which the pressurized gas must flow before being introduced to the first pilot port, and a valve body at least partially receivable within a second port of the cylinder, wherein the second inlet/outlet port and the second pilot port are integrally formed as a portion of the valve body.

A valve for use in connection with microfluidic devices includes a safety feature such that flow is controlled even in the case of a loss of power, thus having applications in critical applications such as the precise delivery of drugs over time. The valve may be used in connection with multiple tubes delivering drugs, and may be used with a pump, such as an electrochemical pump, to provide the force to move the fluids containing drugs for delivery. In certain applications, more than one medicine may be delivered and metered independently using a single pump with multiple reservoirs and valves.

The hot and cold water mixing valve device includes a hot and cold water mixing valve unit; a flow control valve unit; a valve device main body; a hot and cold water mixing valve housing; and a flow control valve housing; and wherein the valve device main body includes: a hot water passageway permitting communication between only the hot water inlet of the valve device main body and the hot water inlet of the hot and cold water mixing valve unit; and a cold water passageway permitting communication between only the cold water inlet of the valve device main body and the cold water inlet of the hot and cold water mixing valve unit are formed on the interior of the valve device main body.

The present disclosure provides a valve device, which includes: a valve casing in which an inlet flow passage, an intermediate flow passage , and an outlet flow passage are formed; an outlet rod part coupled to the outlet valve body; an interlocking shaft part that linearly moves the outlet rod part in a direction of a first central axis; an intermediate rod part coupled to an intermediate valve body; and an intermediate actuator part that linearly moves the intermediate rod part in the direction of the second central axis. The intermediate actuator part has a link part that converts displacement of the linear motion member, which is advanced and retreated in the direction perpendicular to the direction of the second central axis, into displacement of the linear motion member in the direction of the second central axis and transmit the converted displacement to the intermediate rod part.

The invention relates to a water mixer tap, for mixing hot/cold fluid or water, having one tap body-cartridge-handle with plurality of concentric legs or tails connected to concentric ports in the cartridge/plurality of tap bodies-cartridges-handles with plurality of concentric or parallel legs or tails connected to individual tap bodies such that discharge of fluid or water from all tap bodies finally entered into a common header for all tap bodies for discharge of fluid in a mixer chamber in various embodiments of the present invention Fluid Mixer Tap. The tap handle rotatably mounted about a longitudinal axis with respect to the tap body and operatively connected to the tap cartridge or valve assembly such that rotating the handle to a selected position connects inner and outer port/concentric inner and outer ports to a mixing chamber in header and controls the proportions of the hot and cold water supplied from the mixing chamber from the respective hot and cold water supply lines for discharge through the spout In one preferred embodiment there is interlocking of hot and cold water line, such that hot water can entered into spout only when cold water valve is open other wise hot water will not enter the spout. In some embodiments invented tap fittings Toupling C or Taptee T are used for connecting to hot/cold inlet water supply lines where as in some other embodiment they are not used. Here the inlet legs are directly connected to pipe fittings and hose connectors. The taps are attachable to kitchen sink, bathtub or washbasin or baths in various embodiments as per design. Moreover, the inventive mixer tap can be used as a mixer tap or valve for mixing two or more type of fluids in a single unit. The use of the invention makes it possible to improve life cycle and ease of installation along with robust construction and economical cost of water mixer tap for consumer.

There are twelve embodiments and further embodiments are disclosed in the present invention Fluid Mixer Taps or Valves (FMT) which are developed for use in baths, kitchen sinks, wash area, bath tubs, industries, hospitals etc. according to respective embodiments and attachable to them for delivery of mixed water/fluids. The Fluid Mixer Taps (Valves) comprises, in the First to Eighth embodiments of the present invention, two main parts in each embodiment one is a main body and the other is either a Toupling C or a Taptee T connected to the main body as per various drawings in FIG. 1 to FIG. 11 and in the ninth to twelfth embodiments neither Toupling C nor Taptee T is required to be attached to the main body wherein there is only one body which are thought of and developed

A valve system for use with a cylinder having an extensible rod. includes a first valve assembly including a first inlet/outlet port, a check valve biased toward a closed suite, the cheek valve having a check valve body at least partially receivable within a first port of the cylinder, a flow control valve positioned in series between the first inlet/outlet port and the check valve, and a first pilot port selectively communicable with a pressurized gas for opening the check valve. The valve system further include a second valve assembly including a second inlet/outlet port, a second pilot port through which the pressurized gas must flow before being introduced to the first pilot port, and a valve body at least partially receivable within a second port of the cylinder, wherein the second inlet/outlet port and the second pilot port are integrally formed as a portion of the valve body.

A valve system for use with a cylinder having an extensible rod, includes a first valve assembly including a first inlet/outlet port, a check valve biased toward a closed state, the check valve having a check valve body at least partially receivable within a first port of the cylinder, a flow control valve positioned in series between the first inlet/outlet port and the check valve, and a first pilot port selectively communicable with a pressurized gas for opening the check valve. The valve system further includes a second valve assembly including a second inlet/outlet port, a second pilot port through which the pressurized gas must flow before being introduced to the first pilot port, and a valve body at least partially receivable within a second port of the cylinder, wherein the second inlet/outlet port and the second pilot port are integrally formed as a portion of the valve body.

A valve system, for use with a cylinder having an extensible rod, includes a first valve assembly having a first inlet/outlet port, a check valve biased toward a closed state, the check valve having a check valve body at least partially receivable within a first port of the cylinder, a flow control valve positioned in series between the first inlet/outlet port and the check valve, and a first pilot port selectively communicable with a source of pressurized gas for opening the check valve. The valve system further includes a second valve assembly having a second inlet/outlet port, a second pilot port through which the pressurized gas must flow before being introduced to the first pilot port, and a valve body at least partially receivable within a second port of the cylinder.

A bypass valve is described comprising a delivery duct, a return duct and a central duct connecting the delivery and return ducts for the circulation of a heat-exchange fluid. A first ball valve is placed along the delivery duct and a second ball valve is placed along the return duct, at the intersection between the central duct and the delivery and return ducts. The rotation axes of the balls of the ball valves are perpendicular to each other.