Abstract: A projection is provided in a flange of a resin spool, and a concave portion is provided in a yoke in a position facing the projection. The movement of the spool in the radial direction of the spool is restricted by inserting the projection into the concave portion. Because the inner circumferential surface of the concave portion and the outer circumferential surface of the projection are brought into contact, the movement of the spool in the axial direction of the spool is inhibited by frictional resistance at the points of contact.

Abstract: A diaphragm valve includes a valve body defining a passageway constructed to form a valve seat, and a diaphragm. A compressor moves the diaphragm between a closing position in which a flow of fluid through the passageway is barred as the diaphragm is caused by the compressor to seal the valve seat, and an open position in which at least part of a cross section of the passageway is bounded by the diaphragm to thereby enable a flow of fluid through the passageway substantially without narrowing the cross section of the passageway.

Abstract: The spigot comprises a conduit that communicates with the interior of the container to which the spigot is attached. The conduit communicates with a valve body that comprises a chamber that includes an opening that is selectably opened and closed by a valve element. The valve element may be movable into and out of engagement with a valve seat formed around the opening. The valve element may be biased to the closed position by a spring such as an elastomeric diaphragm. The elastmeric diaphragm may seal the chamber and be exposed such that depressing the diaphragm moves the valve element from the normally closed position to an open position. The valve body may be disposed such that it extends from the first conduit at an angle. The opening in the valve body communicates with a second conduit that extends from the valve body to receive the flow of fluid.

Abstract: Fluid regulators are disclosed. An exemplary fluid regulator having a cylindrical body and a reduced diameter portion adjacent an open end of the fluid regulator along with a flow selector positioned adjacent the open end of the fluid regulator and having a diameter larger than the reduced diameter of the cylindrical body is disclosed. Another exemplary fluid regulator having a pressure reduction section positioned within a housing is disclosed.

Abstract: In a pressure increase control valve, the size of a gap G between a plunger and a guide is 0.2 mm or greater, or a ratio between a diameter of a restriction and a seat diameter ds is 0.9 or less. Setting the size of the gap between the plunger and the guide to 0.2 mm or greater can decrease variations in an electromagnetic force with respect to a stroke of a valve body. In addition, setting the ratio between the diameter do of the restriction and the seat diameter to 0.9 or less can increase variations in a fluid force with respect to the stroke of the valve body. Therefore, it is easier to achieve a relationship between the electromagnetic force and a resistance force that is required in order to enable linear control of a differential pressure amount generated between upstream and downstream flows.

Abstract: A ball valve (10), in particular for controlling the amount of medium supplied to a heating or cooling system, is adapted such that the characteristic of the valve may be determined so that it may be adapted to its use in the heating or cooling system. The ball valve consists of a housing having a ball valve body (4) which is rotatable in two cups (3, 5) of a corresponding ball shape. An insert (7) is arranged at the discharge side of the housing, said insert having a concave ball face which corresponds to that of the ball valve, and which is provided with a slot or recess (10) which, together with the through bore of the ball, defines the outlet opening of the valve. A desired characteristic of the valve may be provided by imparting a suitable shape to the slot (10). The insert is fixed in a holder (6) in the valve housing by means of axially extending teeth (13) in the face of the housing which receives the insert.

Abstract: A pilot-type two-port valve is disclosed having a water hammer preventing mechanism, operative to prevent a water hammer during valve-closing operation, which includes a valve member operative to open or close a valve and a piston driven by pilot fluid for operating the valve member for opening and closing movements. The water hammer preventing mechanism comprises a piston drive chamber, from which fluid is discharged during valve-closing operation, which has an orifice for restricting the flow rate of discharge fluid whereby when the piston moves to a position to allow the valve member to be close to a valve seat, a portion of an discharge flow passage of the piston drive chamber is blocked to restrict the flow rate of the discharge fluid to the flow rate of fluid flowing through the orifice.

Abstract: A water flushing system for a pressurized subterranean water distribution system includes an inlet conduit for receiving pressurized water from the subterranean water distribution system; an outlet fluidly connected to the inlet conduit for discharging pressurized water in the inlet conduit downwardly towards a drain; and a control valve for controlling the flow of pressurized water in the inlet conduit. The water flushing system further includes one or more of the following features: a freeze protection assembly, a detachable coupling system, a dechlorination system, and a backflow prevention system.

Abstract: A conduit clamp has an upper member and a lower member selectively connectable around a flexible tube. The upper member and lower member has interconnecting pivot points for pivotally connecting to each other. The lower member has a pair of opposing sidewalls with rocker arms integrally formed therein for receiving and moving a locking protuberance extending on outer surfaces of the upper member as the conduit is depressed into a locked and closed position. The rocker arms are flexible to allow the locking protuberances to move in and out of gaps formed around the rocker arms for closing and opening the conduit clamp. The upper member has a pair of sidewalls and a lower extending projection therebetween. The extending projection closes the pathway in the flexible tube as the conduit clamp moves to a closed position.

Abstract: A valve for controlling the flow of materials is provided. The valve has a valve body having a bore, a guide attached to the valve body, a gate movable within the guide into and out of the bore, and an actuator for the gate, the bore of the valve body having a profile where the gate enters the bore, and the gate having a concave leading edge conforming to a profile of the bore. The valve may be used in throttling applications.

Abstract: A solenoid arrangement includes an electromagnetic valve device having a coil disposed in a casing, and a movable armature slidably received in the coil for allowing the movable armature to be actuated by the coil to move relative to the coil and the casing, the casing includes a sleeve having a bore for slidably and changeably receiving shanks of different lengths which may be attracted to the movable armature for being moved in concert with the movable armature. The electromagnetic valve device may be adjusted to different moving strokes with different shanks for attaching or coupling to different operating facilities that require different moving strokes.

Abstract: Digital regulators using a plurality of latching solenoid actuators, each having a spring return, the springs being configured to provide a force on the valve member of a regulator, when the solenoid actuators are unlatched, in a binary progression. The solenoid actuators are selectively latched by an latching current pulse and retained in the latched condition by residual magnetism in a zero air gap magnetic circuit. Various embodiments are disclosed, including embodiments having the solenoid actuators side by side and in a stacked relationship, solenoid actuators having springs providing a spring force in a binary progression, solenoid actuators having equal springs and distributed in a binary progression from a hinge axis, and solenoid actuators not distributed in a binary progression from a hinge axis and not distributed in a binary progression from the hinge axis. Embodiments are also disclosed having the capability of interpolating between binary settings of the digital regulator.

Abstract: The present invention is a sealing structure for a rotary valve of a squirt gun. The rotary valve is placed into a housing of the squirt gun body between an inlet duct and an outlet duct. The rotary valve is provided with a through hole, and both ends of the rotary valve are connected to a button outside of the squirt gun body. The rotation angle of the rotary valve can be adjusted to control the switching or misalignment state between the through hole of the rotary valve and the inlet duct and the outlet duct. A flexible sealer is placed on the outer wall of the rotary valve opposite to the inlet duct or outlet duct of the squirt gun body. When the through hole of the rotary valve is misaligned with the inlet duct and outlet duct, the flexible sealer is placed opposite to the inlet duct or outlet duct to achieve water-tightness, thereby reducing the components and saving the manufacturing cost for improved industrial applications.

Abstract: A variable radial flow rate control valve including a body forming a bore along the longitudinal axis thereof for transporting a fluid through the body, a fixed choke member fixedly positioned about the bore, the fixed choke member forming a fixed aperture, a rotational choke member rotationally positioned about the bore, the rotational choke member forming a rotational aperture radially corresponding to the fixed aperture, wherein a fluid passage is formed radially between the bore and the exterior of the body when the corresponding apertures overlap. The rotational choke member is rotatably, but not axially, moveable in relation to the fixed choke member between variable radial flow rate positions.

Abstract: A needle valve with a hollow needle effective for permitting a portion of the fluid passing through the valve to flow throughout the valve and exit through any leaks in the valve, whereby any environmental fluid within the valve is displaced by the fluid passing through the valve.

Abstract: A valve is provided. The valve includes a plunger, a chamber having a first region and a second region where the plunger moves back and forth, a first electromagnet and a second electromagnet which are located around the first region and the second region to apply a magnetic field to the plunger, a fluid inlet through which a fluid enters into the chamber, located between the first region and the second region of the chamber, and a second fluid outlet located on a vertical end part of the second region away from the first region.

Abstract: A solenoid valve is provided that includes an inlet, an outlet, a valve seat in the flow path between the inlet and the outlet, a stationary core, and a moveable member for moving between an open position and a closed position against the valve seat. A resilient dampening member is disposed between the moveable member and the stationary core, and is independent from both the stationary core and the moveable member. A spring biases the resilient dampening member against the stationary core and the moveable member away from the stationary core to a closed position. Upon energizing a solenoid with a direct current voltage, the moveable member moves from the closed position towards the stationary member to an open position against the resilient dampening member. The resilient dampening member dampens the impact between the moveable member and the stationary core to reduce the noise associated with energizing the solenoid.

Abstract: A bistable minivalve includes a movable component, an actuator that is electrostatically, magnetically, or mechanically coupled to the movable component for controllably switching the movable component between open and closed states, and a casing providing structural support. The movable component has an actuation surface [300] movably positioned in the valve conduit and a bistable element attached to the actuation surface providing mechanical stability to the open and closed states of the movable component. The bistable element may be realized as a pair of elastic buckling beams [302, 304] attached at their midpoints to opposite sides of the actuation surface. Optionally, there may also be elastic support beams [306, 308] attached at their endpoints to the actuation surface and attached at their midpoints to the elastic buckling beams.

Abstract: Described herein is a valve for fluids, liquids or dusts, which can be used to particular advantage for controlling openings for passage of cooling air in refrigerating apparatuses or the like. The valve comprises a diaphragm open/close element having a central part and a peripheral edge connected, respectively, to a central support and to a peripheral support. Said supports are axially displaceable with respect to one another between a first relative end position and a second relative end position corresponding, respectively, to the open condition and to the closed condition of the valve, or vice versa. The relative displacement in an axial direction of said first and second supports is controlled by shape-memory means, including at least one shape-memory wire, which extends at least in part along the periphery of the diaphragm and is activated by electrical supply means.

Abstract: A quick connector includes a main member, a housing, a sliding member and an elastic member. The main member has a chamber therein, two bores, a check valve and an elastic device urging the check valve sealing the bore. The housing has a big end, a small end and a sloping section. The big end is connected to the bore of the main member. The sliding member has an elongated bore, first and second ring portions, a plurality of apertures, and balls received in the apertures. The sliding member is inserted into the housing via the small end with the first ring portion out of the housing, the second ring portion in the housing and the sloping section of the housing between the first ring portion and the second ring portion. The elastic member urges the sliding member distal to the main member initially.