Abstract: A valve assembly for modulating flow of a fluid through a valve may include a plunger, a flange with an orifice, a first disc with an orifice, a second disc, a gasket in contact with both the flange and the first disc, three bearing members disposed between the first disc and the flange. The three bearing members define a position and orientation of the first disc with respect to the flange, and separate the first disc from the flange, thereby defining a gap between the flange and said disc. The plunger displaces the second disc surfaces from a first position to a second position.

Abstract: A seat ring for a butterfly valve provided at an inner circumferential surface of a valve body so as to create a seal between the inner circumferential surface of a valve body and the valve disc when closing the valve, and a sealing projection continuously protruding inwardly provided between a pair of bosses formed around a pair of opposite valve stem holes for inserting valve stems positioned radially outwardly of a flow passage direction. The sealing projection consists of a contact surface and an adjacent semi-elliptic surface, wherein the contact line of the contact surface and top portion of the adjacent semi-elliptic surface is a semi-elliptic edge displaced by an offset “h” from a plane defined by a vertical valve centerline and a transversal valve centerline in disc closing direction.

Abstract: A plumbing fitting that includes: a fitting body having a plurality of ends; and a cover element joined to the body with a weld in proximity to and spaced from an interface in contact with a potable or non-potable aqueous medium. The body and the cover element are fabricated from a lead-free or low lead, copper or copper-silicon alloy having a thermal conductivity of ?45 W/(m*K). Further, the weld has a centerline that is ?6.4 mm from the interface and/or a heat affected zone that has an average width ?400 ?m and is spaced from the interface. The plumbing fittings include but are not limited to ball valves, gate valves, elbows, check valves and other fittings without stems.

Abstract: A fluidizing butterfly valve. The fluidizing butterfly valve includes a valve body and a fluidizing valve disk or member configured to fluidize material located above the butterfly valve and/or material moving through the butterfly valve.

Abstract: A showerhead bracket having a fluid inlet, a fluid outlet, a valve and a valve housing. The valve may be operably connected between the fluid inlet and the fluid outlet. The valve includes a valve inlet port, a low flow exit port and a high flow exit port. The valve housing is disposed between the fluid inlet and the valve inlet port. The valve can selectively rotate within the valve housing.

Abstract: A system includes a ball valve. The ball valve includes a housing, a ball, and a first valve seat assembly. The housing includes a chamber, a first fluid passage intersecting the chamber, and a second fluid passage intersecting the chamber. The ball is disposed in the chamber and is configured to control fluid flow between the first and second fluid passages. The first valve seat assembly is disposed between the ball and the housing. The first valve seat assembly includes a first seat configured to seat against the ball both above and below a pressure threshold, and a second seat configured to seat against the ball only above the pressure threshold, wherein the second seat has a coefficient of friction that is lower than the first seat.

Abstract: The subject of the present invention is a valve for extracting, by pumping, a fluid contained in a space, said valve comprising: a) a main body having a first opening for the passage of said fluid during pumping, and b) an indicator means configured to indicate whether or not the fluid is passing through the first opening.

Abstract: A microfluidic valve includes: a first structural layer and a second structural layer; a microfluidic circuit having a first microfluidic conduit and a second microfluidic conduit, which are defined in a superficial portion of the first structural layer, are adjacent, and are separated by a wall; a membrane set between the first structural layer and the second structural layer and delimiting the microfluidic circuit on one side; and a recess containing a gaseous fluid in the second structural layer. The membrane is movable in response to an actuation stimulus between a closed position, in which the first and second microfluidic conduits are fluidly decoupled, and an open position, in which the membrane is at least in part retracted into the recess and the first and second microfluidic conduits are fluidly coupled by means of a fluidic passage defined between the wall and the membrane.

Abstract: A drain valve for a compressed air brake system of a vehicle comprises a valve housing defining a valve chamber open at one end and a drain aperture at the opposite end. A poppet has a poppet body at least partially received in the valve chamber and provided with a seal. The poppet is slidable between a closed position in which the poppet and the seal contact the inner wall of the valve housing around the drain aperture thereby closing the drain aperture, and an open position moved away from the drain aperture. A spring urges the poppet to the closed position. The poppet and the seal are incorporated in a single multi-component injection molded plastic part comprising at least two components. The poppet body is formed of a first plastic component and the seal is formed of a second plastic component partially embedded in the first plastic component.

Abstract: A draining device for draining fuel from a fuel vapor system into a fuel tank is provided, the draining device comprising a port configured to be coupled to a fuel vapor accessory and a sealing member displaceable between a closed position in which the port is closed by the sealing member and an open position in which fuel from the fuel vapor accessory can be drained into the tank, wherein the sealing member is displaced into the open position when pressure in the tank is substantially equal to the atmospheric pressure and the fuel level in the tank is below the fuel level in the fuel vapor accessory.

Abstract: A magnetic valve device includes a valve receiving device and a valve insert of a magnetic valve which is received in the valve receiving device. A high pressure resistance is obtained in one of the modes of embodiment. The magnetic valve device includes either a pressure mechanism configured to press the valve insert against the valve receiving element or a sealing element arranged in a notch in the valve insert or a sealing element arranged between an axial filter and the valve insert.

Abstract: A vacuum pressure control apparatus includes an annular elastic seal member formed with a valve seat, and a doubly eccentric butterfly valve element configured to come into contact or separate from the valve seat. The vacuum pressure control apparatus is to be placed on a pipe connecting a vacuum chamber and a vacuum pump. The vacuum pressure control apparatus is configured to rotate the butterfly valve element in a first direction from a first valve closed position corresponding to an initial state to change vacuum pressure in the vacuum chamber. The vacuum pressure control apparatus further includes a control unit configured to rotate the butterfly valve element in a direction opposite to a first direction so that the butterfly valve element is moved to a second valve closed position different from the first valve closed position.

Abstract: A bellows assembly mounts between a movable valve structure and a stationary valve structure of a valve assembly. The bellows assembly includes a bellows and a spacer. The bellows compresses until a gap is closed relative to the spacer. The bellows assembly bears a load through the bellows before the gap is closed, and the bellows assembly bears the load through the bellows and the spacer after the gap is closed.

Abstract: A regulating valve that includes a valve stem for driving a valve body, and a gland portion slidably holding the valve stem, the gland portion including a lid portion having a through-hole communicating with the inside of the valve box, the valve stem being inserted into the through-hole, a spacer provided between the inner wall of the through-hole and the valve stem, one yarn packing disposed above the spacer, at least two adapter packings disposed via the yarn packing in a slide direction of the valve stem, the adapter packings being made of a material having a smaller thermal expansion coefficient and a higher hardness than the yarn packing, a packing follower disposed on the adapter packings opposite to the valve box, a disc spring disposed on the packing follower, and a packing flange disposed above the disc spring and the packing follower, the packing flange being fixed to the lid portion.

Abstract: A dust and abrasive materials gate valve with an angled valve seat and pivotably mounted valve gate allows for a broad seal area around the periphery of the valve seat, which may be closed tightly by a wedging action due to increasing force applied by the valve actuator. The valve seal is thus not formed along a single, linear surface as in traditional gate valves and the force applied by the valve gate to the seat facilitates closing even if there is wear along the sealing surfaces. Due to the relatively large open area around the periphery of the valve gate just before closing or immediately upon opening, the velocity of particles in pressurized systems is reduced and erosion reduced accordingly.

Abstract: A clamp for selectively compressing a portion of tubing, such as an extension leg of a PICC or other catheter, is disclosed. The clamp is able to be opened or closed with a thumb and finger of a single hand of a user and is slidably attached to the tubing so as to enable its placement as desired along the tube. In one embodiment, the tubing clamp comprises a body including first and second body portions hingedly connected to one another in a clamshell configuration, a latch for releasably latching the first and second body portions together, and at least two tube compression members. The tube compression members cooperate to compress and occlude a portion of tubing passing through the tubing clamp when the first and second body portions are latched to one another.

Abstract: A proportional pressure regulating valve has a valve piston (12) longitudinally movable in a valve housing (10) and connecting a utility connection (A) to a pressure supply connection (P) or to a tank or return flow connection (T) dependent on the displacement position of the valve piston. The valve piston is actuated by an actuation magnet (48) that can be supplied with current. A control device (50) is between the valve piston (12) and the actuation magnet (48), and allows the valve piston (12) to become pressureless on the valve piston side (52) facing the actuation magnet (48). The valve piston (12) is displaced in the direction of the actuation magnet (48) under the supply and/or utility connection pressure when the actuation magnet is not actuated.

Abstract: A valve assembly includes a valve stem having a resilient proximal seal member disposed around the stem and a distal seal member disposed around the stem. The proximal and distal seal members are axially separated from one another along the valve stem. The assembly further includes a housing defining a valve chamber, in which the valve stem is confined so as to be axially displaceable within the valve chamber. The housing defines a first portion of the valve chamber, in which the proximal seal member resides, a second portion of the valve chamber, in which the distal seal member resides, and a cross-bore chamber, which opens into the valve chamber in a third portion between the first and second portions. The third portion has a minimum cross-sectional diameter greater than the cross-sectional diameter of the first portion.

Abstract: A spool valve includes a valve housing and a spool. The spool is slidable in an axial direction in the valve housing. A linear solenoid drives the spool against a spring. The valve housing has a feedback chamber to apply a force to the spool, an input port to receive a hydraulic pressure, an output port to produce an output pressure according to an axial position of the spool, and an drain port to exhaust oil to an outside. The spool valve has multiple supply paths to cause oil to flow from the input port to the output port and/or multiple exhaust paths to cause oil to flow from the output port to the drain port.

Abstract: A shut-off valve for use in a fluid transport or storage system includes a body defining an inlet port, an outlet port, and a fluid flow passageway extending between the inlet port and the outlet port, a seat arranged in the body adjacent the outlet port, a shaft at least partially disposed in the body, and a control assembly disposed in the body and operatively coupled to the shaft. The control assembly is movable between a closed position, in which a portion of the control assembly sealingly engages the seat to seal the outlet port, and an open position, in which the control assembly is spaced away from the outlet port and substantially outside of the fluid flow passageway, such that the control assembly provides minimal flow-restriction to fluid flowing through the fluid flow passageway.