Abstract: A stop valve includes a connection-switching part capable of switching a connection state between a rod part having an end portion which is connected to a valve disc and an actuator part which linearly moves the rod part. The connection-switching part includes a concave engaging part which is recessed the rod part, a casing having an accommodation space joined to the concave engaging part formed therein, a plurality of frame pieces, a sleeve part which is movable between the frame piece accommodation position and a frame piece detachment position, and a gas introduction part through which a gas is introduced into the accommodation space. The sleeve part moves from the frame piece detachment position to the frame piece accommodation position using the gas. The casing is in contact with the frame pieces at the frame piece accommodation position when moving toward the second side in the central axis direction.

Abstract: Provided is a diaphragm valve that can improve durability when the diaphragm valve is downsized. In a pressing adaptor, a whole lower surface thereof has a taper shape at a predetermined inclination angle. A bottom surface of a depression of a body has a circular flat portion and a depression that is continued to an outer circumference of the flat portion and is depressed with respect to the flat portion. In a diaphragm, in a state where a fluid inflow channel is opened, an upper surface of an outer circumferential edge portion comes into surface contact with the taper-shaped lower surface a of the pressing adaptor, and a lower surface of the outer circumferential edge portion comes into line contact with the outer circumference of the flat portion of the bottom surface of the depression of the body.

Abstract: The present invention provides a tap assembly including: (1) a first wall defining a valve chamber having a top surface and a pair of opposed tracks extending axially along an inner surface of the wall, and a fluid outlet; (2) a tap handle mounted to the top surface for rotational movement of the tap handle with respect to the wall, the tap handle having a second wall defining an annular chamber supporting a set of threads; and (3) a generally tubular valve member having a first end and an opposed second end, the first end having a pair of lugs circumferentially spaced from one another, the lugs being positioned within the threads, the second end of the valve member extending into the valve chamber, the valve member is responsive to movement of the tap handle to move from a first position where the fluid outlet is sealed by the second end of the valve member to a second position where the fluid outlet is not sealed by the second end of the valve member and fluid is allowed to flow through the fluid outlet.

Abstract: A process instrument isolation valve is disclosed having a valve body, a plurality of valve seats, a stem, a plug attached to the stem, and an actuator. The valve has an inlet, a sensor port and a vent port. In use, the valve is opened allowing process material to enter the sensor port where a measurement is taken. When measurement is complete, the valve is closed. As the valve closes, process material exits the valve through the vent port while at the same closing off the valve to the process, preventing process material from flowing from the process to the vent line.

Abstract: An adjustable anti-freeze water delivery assembly for connecting with a water main buried in the ground comprises a body section with an inner bore and a water outlet. A water supply section couples to a water main below the ground surface and has an inner bore wherein the body section and supply section are telescopically engaged for delivering water from the water main to the water outlet. A valve mechanism is movable between an open and a closed position to control water flow therethrough. A telescoping control stem extends between the body section and the valve mechanism for opening and closing the valve mechanism. The control stem is operable for telescoping in length when the assembly length is adjusted so that water is contained at a sufficient depth below the ground surface to reduce the possibility of freezing in the assembly.

Abstract: The high-pressure valve has a valve body defining an elongated longitudinal extension, delimiting a chamber and having an input port, which is defined on its lateral surface, and an output port, which is arranged on a first axial end thereof. The valve body supports, on a second end, a motor and a manual actuation member which can be connected, by virtue of coupling members, to a shaft for the actuation of a first bush accommodated within the chamber. The first bush is provided with actuation elements for the sealed non-rotational movement of adjustment pin which opens a connecting path between the input port and the output port. The adjustment pin engages in a neck located in the chamber and moves toward the output port, in order to open the connecting path, and in the opposite direction, in order to close it. Sensors are furthermore provided for detecting movement of the adjustment pin.

Abstract: In an aseptic valve construction, a valve body having an inlet flow passage and at least one outlet flow passage, said valve body having a valve seat surrounding the inlet flow passage, said body having an opening therein in alignment with the inlet passage and in communication with the inlet passage and with said at least one outlet passage, said body having a shoulder providing a shoulder seat surrounding said opening, an actuator sleeve adapted to be secured to said valve body, a shaft, means mounting said shaft in said sleeve to permit axial movement of said shaft in said sleeve, a diaphragm removably secured to said shaft, said diaphragm having a portion movable into engagement with the valve seat surrounding the inlet passage, diaphragm actuator means engaging said shaft for causing axial movement of said shaft for moving said diaphragm between open and closed positions with respect to said valve seat whereby in a closed position said diaphragm interrupts the flow of a liquid from the inlet passage thro

Abstract: The present invention relates to novel remotely dismountable valves comprising a valve body welded to the pipes and having a truncated seat, an outwardly truncated member fitting on said seat, an obturator whose movements may be remotely controlled due to an extension element and a heavy element made fast with the member via a cross-piece presenting an upper surface in the form of a segment of a sphere on which surface the likewise spherical surface of the lower face of said heavy element abuts.

Abstract: A butterfly valve made of a synthetic resin comprising; a valve casing, a valve plate, a valve shaft connected to said valve plate, pivoted turnably to said valve casing and having one end thereof protruding into an axial cylinder formed to protrude from said valve casing, and a rotary moving member engaged with the outer circumference of said valve shaft turnably and slidably in the axial direction, retarding the rotation of an operation handle shaft and transmitting it to said valve shaft.

Abstract: A valve body has a valve seat in the lower portion of a valve chamber with inlet and outlet openings communicating with the chamber for the flow of fluid therethrough. A valve assembly has a valve disc arranged to move into and out of abutting relation with the valve seat and a disc cap connected to the upper portion of the valve disc. A valve stem supported for axial, reciprocal movement within the valve chamber has a threaded upper portion connected to a rotatable bushing and a threaded lower portion connected to the disc cap. A flexible metal diaphragm assembly separates the valve chamber into the upper and lower portions and includes an axial bore through which the lower portion of the valve stem extends. A diaphragm stem clamp threadedly engaged to the valve stem lower portion securely abuts the top surface of the diaphragm.

Abstract: A dump valve assembly for opening and fluid-tightly sealing the drain outlet of a waste tank, the assembly comprisng a rotatable elongated shaft having a handle at its upper end and a first or lower compression plate adjustably secured to its lower end. Disposed concentrically about the shaft are a first and second tubular member, the former having a length less than that of the shaft, and the latter having a length less than that of the first tubular member. Fixedly secured to the lower end of the first tubular member is a second or upper compression plate spaced from the lower plate. Sandwiched and pre-loaded between the upper and lower compression plates is a valve plug made of an expandable material. The shaft is provided with a double-thrust ball bearing which abuttingly engages the upper end of the first tubular member to permit independent rotation of the shaft relative to the former member.

Abstract: Multiple embodiments of fluid flow control valves are disclosed to include a plurality of unique features including; an operating spindle mounted within the valve casing to provide protection for both the spindle and valve stem, means for indicating the position of the valve stem, e.g. a dial guage mounted directly on the stem or a two-stage scale mounted on the stem and on the valve operating spindle, a stem structure which accommodates flow path sizing as well as positive no-flow sealing without the use of soft seals, adjustment structure which eliminates tolerance problems resulting from manufacturing, and replaceable flow control apparatus to permit use of a single basic valve to provide flow control in a wide range of circumstances.

Abstract: A closure head of a plumbing valve engages a protruding bead formed around one opening of a hollow highly flexible sealing member. Supply fluid is conducted to the interior of the sealing member through another opening. The hollow sealing member provides a flexible lip surrounding the bead, the lip responding to pressure of the supply to urge the bead firmly into engagement with the closure head. The lip deflects upon engagement with the closure head and its inner side is free of restraints that would prevent deflection. Limits are placed upon movement of the head while no effective limits are placed upon deflection of the lip. A lip around the supply port to the sealing member also effects a static seal. The sealing member is snap fitted into the bottom of a removable cage.

Abstract: Rotary valve comprising a rotatable stem having a valve disk fixed thereto and disposed within a valve case, a slidable tube and a rotatable tubular member each positioned coaxially with the stem and connected to the valve case, first screw-thread means for holding the stem and the slidable tube in screw-thread engagement with each other, and second screw-thread means for holding the slidable tube and the tubular member in screw-thread engagement with each other, the first screw-thread means having a larger lead angle than the second screw-thread means, so that the rotation of the tubular member rotates the stem of the valve disk.