A valve assembly is disclosed. The valve assembly may a valve body defined by an inlet port, an outlet port and flange. A movable valve member comprises an inlet opening extending from a leading edge surface present at a narrow slot region to trailing edge surface present at about a full bore region wherein the angle between the leading edge surface and trailing edge surface at the center of valve member is about 270 degrees. The fluid flow from the inlet port of the valve body to one or more outlet openings is controlled by the rotation of the valve member. Rotation of movable valve member enables linear controlling of the fluid flow wherein the control of fluid flow is proportional to the degrees of rotation from 0 to about 270 degrees.

A flush system includes a meter valve, a first pipe, a vacuum breaker, a second pipe, and a ball valve assembly. The meter valve defines a selectively openable outlet. The first pipe is in fluid communication with the meter valve and a water supply source. The vacuum breaker is disposed within the first pipe upstream of the meter valve and oriented to prevent backflow from the meter valve to the water supply source. The second pipe extends from a wall and is downstream from the supply source. The ball valve assembly is disposed between the first pipe and the second pipe upstream of the vacuum breaker to facilitate fluid communication between the first pipe and the second pipe and to selectively isolate the meter valve from the water supply source.

A control valve includes: a port, which is shaped in a tubular form; a valve element; and a metal seal, which contacts the valve element. A gap is formed between a tubular portion of the metal seal and the port in a perpendicular direction that is perpendicular to an axial direction of a flow passage of the port. Thereby, when the valve element is displaced in the perpendicular direction, the valve element urges the metal seal to displace the metal seal in the perpendicular direction in the state where the metal seal contacts the valve element.

A valve actuation mechanism comprises a housing, an actuation pin rotatably mounted within the housing and at least one torque spring coupling the actuation pin to the housing for biasing the actuation pin from a first, inoperative rotational position towards a second, operative rotational position. The mechanism further comprises an actuation pin retaining element for selectively retaining the actuation pin in its first position, the retaining element being engageable with the actuation pin and the housing when the retaining element is in a retaining position so as to prevent rotation of the actuation pin towards its second position, and selectively disengageable from the housing to permit rotation of the actuation pin towards its second position. A locking element is provided for selectively preventing disengagement of the retaining element from the housing.

A no-crimp valve assembly employs a fitting which has an enlarged outer portion and a coaxial inner portion of reduced diameter. An axial groove is formed between the outer portion and the inner portion for receiving the end of a polymer pipe. A nut retainably receives a split ferrule. The split ferrule has a serrated inner surface. The nut is threaded to the outer threaded surface of the outer portion and the ferrule is compressed against the outer surface adjacent the end of the pipe to form a fluid tight connection and the inner surface of the pipe engages the reduced surface of the inner portion. In some embodiments, the inner portion carries one or more sealing rings or has a serrated or stepped inner surface which engages the inside surface of the pipe.

The present disclosure provides a valve enclosure and side handle faucet system comprising the valve enclosure. The valve enclosure comprises an inlet portion, an outlet portion and a valve cavity. The valve enclosure further comprises a ball valve and is mounted to the side of a spout such that fluid enters the valve cavity perpendicularly from a fluid inlet line and exits the cavity perpendicularly from an outlet such that the distance between the input and output flow to the cavity is minimized. The valve enclosure also comprises an interchangeable housing configured to surround the valve enclosure.

A vertical fan unit includes a cabinet, a fan unit and a heating and cooling coil. A piping and valve assembly connects the heating and cooling coil to a four-pipe vertical riser. Shut-off ball valves are connected to respective hot and cold supply pipes of the vertical riser out of the path of air flowing through the heating and cooling coil. Hot and cold return valve assemblies include control ball valves connected to respective return pipes of the four pipe vertical riser and positioned adjacent the side wall out of the path of air flowing through the heating and cooling coil. A cable connects each temperature probe of the shut-off ball valves with respective BTU meters mounted at the control ball valves.

An integral valve arrangement may comprise a housing. The housing may comprise a main valve and a relief valve. The main valve may comprise an inlet and a first outlet. The relief valve may comprise a relief inlet in a side wall of the inlet, a relief outlet in a side wall of the first outlet, and a pressure relief system. The inlet and the first outlet may be substantially axially perpendicular. The relief inlet and the relief outlet may be substantially axially perpendicular. The pressure relief system may comprise a body abutting walls of the housing, a relief member disposed within the body, and a lever. The relief member may comprise an interior end and an exterior end. The lever may be rotatably coupled to the exterior end of the relief member by a connecting mechanism.

A rotary flow control valve that requires no linear motion is disclosed. The rotary flow control valve comprises a drive mechanism and a rotary flow control valve coupled with the drive mechanism, wherein the rotary flow control valve is rotated by the drive mechanism without requiring conversion of a linear motion to a rotational motion.

A cooling-water control valve device includes a valve member, a housing for accommodating the valve member, a pipe unit, a valve seat member, a spring and so on. The pipe unit has, at its axial end on a side facing to the valve member, an outside cylindrical portion and an inside cylindrical portion, which is coaxially arranged with the outside cylindrical portion at a radial-inside position of the outside cylindrical portion. An annular accommodation space is formed between the inside cylindrical portion and the outside cylindrical portion. The spring and the valve seat member are arranged in the annular accommodation space.