A plug valve including a valve body defining an internal cavity, a first passage, and a second passage, a plug defining a third passage and being rotatable within the internal cavity, and an insert extending within the internal cavity between the valve body and the plug. The insert defines an interior surface and an opening aligned with the first passage of the valve body. The insert may also define a sealing surface extending around the opening and standing in relief against the interior surface to sealingly engage the plug. In addition to, or instead of, the sealing surface, the insert may define a projection at least partially defining the interior surface. In addition, a boot may be connected to the valve body and interlocked with the projection to prevent, or at least reduce, rotation of the insert relative to the valve body when the plug rotates within the internal cavity.

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 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 control valve of a manual/automatic and cold/hot water faucet includes a sliding member, a linking member, and an operating member. The sliding member has a notch. The linking member is recessed with a connecting groove. The operating member has a valve stem and a linking portion. The linking portion drives the linking portion and the sliding portion through the connecting groove. The valve stem, the connecting groove and the central axis are arranged concentrically, so that the overlapping area of the notch and the cold water hole is equal to the overlapping area of the notch and the hot water hole to keep the same ratio of cold water to hot water in an automatic mode to dispense water, thereby increasing the safety in use.

An air conditioning system includes a first compressor and a second compressor arranged in parallel with the first compressor. The first compressor is a first type of compressor and the second compressor is a second type of compressor different from the first type of compressor. A valve is arranged upstream from both the first compressor and the second compressor relative to a flow of a fluid. The valve is operable to selectively supply the fluid to the first compressor, the second compressor, or both the first compressor and the second compressor.

The invention includes an assembly for remotely controlling fluid flow between a fluid source, such as a water source, and an outlet that includes at least one electrically operable valve, such as an electromagnetically-actuatable valve, to be interposed between the fluid source and the outlet, the valve being actuatable between an open position, in which the source and the outlet are fluidly connected, and a closed position in which the source and the outlet are not fluidly connected; at least one actuator, such as a solenoid actuator, operably connected to the at least one valve for actuating the valve between the open and closed positions; a controller comprising a receiver for receiving a wireless signal, wherein the controller is operably connected to the actuator and capable of actuating the actuator upon receipt of a wireless signal by the receiver; and an activator device comprising (i) a user-activatable sensor for detecting a stimulus when the stimulus enters a detection zone and (ii) a transmitter that transmits the wireless signal upon activation of the sensor by a user to the receiver. In an embodiment, it may be desirable that the electrically operable valves are also mechanically actuatable or that one or more (additional) manually activatable valves in included in the assembly.

The invention relates to a mixing cartridge (1) for generating mixed water with a mixing temperature, having a hot water inlet (2) for hot water, having a cold water inlet (3) for cold water, having a mixing chamber (4), in which the hot and cold water can be mixed, and having a mixed water outlet (5) through which the mixed water can leave the mixing cartridge (1). According to the invention, the mixing cartridge (1) has at least one vortex element (6), which is arranged and/or designed in such a way that the water flowing through the mixing cartridge in a flow direction can be made to rotate, such that the water can form a water vortex.

A control valve for faucet may comprise a control valve, a balancing valve, a water outlet unit, and a faucet body. A lower end of the control valve has a water inlet chamber and a water outlet chamber, and the balancing valve secured inside the water inlet chamber comprises a first shell and a second shell which are formed symmetrically and are configured to fit together to secure a pressure regulator therein. The water outlet unit secured inside the water outlet chamber has a first through hole, and a lower end thereof comprises a lower sealing ring which covers around a lower edge of the water outlet chamber. When control valve connected to the faucet body, the lower sealing ring only will be pressed downwardly instead of being twisted thereby reducing the possibility of damage or deformation and improving the strength of structure and the leakproof effect.

A hydraulic valve arrangement (1) is provided comprising comprising a supply port arrangement having a high pressure port (2) and a low pressure port (4), a working port arrangement having two working ports (6, 7), a first valve (13) arranged between said high pressure port (2) and said working port arrangement (6, 7), a second valve (14) arranged between said low pressure port (4) and said working port arrangement (6, 7), a controller (19) for controlling said first valve (13) and said second valve (14), said controller (19) having an input connection (20) for receiving a signal of an operator input device, and a regenerative flow path which can be established by means of at least one of said first valve (13) and said second valve (14). The function of such a hydraulic valve arrangement should be enhanced. To this end said controller (19) said controller interrupts said regenerative flow path when a feed pressure at said working port arrangement (6, 7) exceeds a predetermined pressure level.

A plumbing fitting includes a housing and a missing valve. The housing includes a first aperture, a second aperture, a third aperture, and a mixing chamber in fluid communication with the first aperture, the second aperture, and the third aperture. The mixing valve is disposed within the housing. The mixing valve includes a first flow control valve that is configured to control a first flow of fluid from the first aperture to the mixing chamber.