132results about "Diaphragm valves" patented technology

The utility model provides a kind of solenoid valve and dry separator, it is related to solenoid valve technical field.The utility model provides solenoid valve including valve body, electromagnet, armature, switch piece, and the air inlet and the gas outlet are opened in valve body, valve body has first inner cavity and second inner cavity, first inner cavity and air inlet are communicated, electromagnet is arranged in second inner cavity, second inner cavity is provided with rubber seal layer, and rubber seal layer covers at least part electromagnet;Switch piece is connected to armature, armature is configured to attract in electromagnet when electromagnet is powered, and restore original position under the action of air pressure when electromagnet is powered off, to drive switch piece to open or block gas outlet.The utility model provides a kind of solenoid valve and dry separator, can improve the safety of solenoid valve.

This utility model discloses a solenoid valve with anti-clogging function, including a valve body with an inlet and an outlet at both ends. A flow control component and a first filter component are disposed inside the inlet of the valve body, adjacent to the flow control component. A sealing component is installed at the open end of the valve body. An electromagnetic control component is disposed adjacent to the sealing component on the outside of the valve body, with a first chamber between the electromagnetic control component and the sealing component. A second filter component is disposed between the flow control component and the sealing component, and is threadedly connected to the valve body. The pore size of the second filter component is smaller than that of the first filter component. This utility model achieves dual filtration through the first and second filter components, resulting in better filtration and preventing a large amount of impurities from entering the first chamber. Simultaneously, only small-particle impurities accumulate inside the valve body, avoiding frequent cleaning of the solenoid valve.

A fitting assembly includes a fitting body and a valve assembly. The valve assembly includes a hollow pedestal, an actuator shaft, and a sealing member. The hollow pedestal includes upper and lower ends. The hollow pedestal is disposed in a valve opening defined by the fitting body such that the upper end is disposed in a passageway defined by the fitting body and the lower end is external to the passageway. The actuator shaft is disposed in the hollow pedestal and is movably coupled with the hollow pedestal. The sealing member is coupled with the actuator shaft adjacent the upper end and at least partially movable together with the actuator shaft. The sealing member is configured to selectively interface with an upper valve body to provide a seal therebetween. The fitting body and the hollow pedestal are formed of a multipiece construction and are joined together at the valve opening.

A film for a battery exterior body has a thickness of 10 µm or greater, including a heat-meltable tetrafluoroethylene-type polymer having 50 or more carbonyl group-containing groups per 106 carbon atoms in its main chain and a fluorine content of from 60% by mass to 75% by mass.

The utility model belongs to the technical field of wastewater treatment, and particularly relates to a wastewater sampling device which comprises a box body, a wastewater input pipe, a detection output pipe, a wastewater output pipe and a flow guide pipe connected with the wastewater input pipe, and further comprises a gravity driving assembly used for driving the flow guide pipe to switch positions under the action of gravity, the switching assembly is connected with the gravity driving assembly and is used for controlling the flow guide pipe to move, so that the flow guide pipe is respectively aligned with the detection output pipe and the wastewater output pipe; the magnetic sealing assembly is arranged at the end part of the flow guide pipe and inlets of the detection output pipe and the wastewater output pipe, and realizes sealed connection through magnetic attraction force; the liquid discharging assembly is arranged at the bottom of the box body and used for discharging waste water in the box body, the position switching of the flow guide pipe without external energy can be realized, and the energy consumption is reduced; the magnetic sealing assembly ensures the sealing performance when the flow guide pipe is connected with the output pipe through the magnetic attraction force of a permanent magnet ring and a ferromagnetic sealing groove.

A metering valve (4) is shown and described as a substantially dead-space-free and self-closing shut-off device for preferably at least substantially residue-free metering of a reactive and / or property-modifying component (21) and / or a reactive component mixture in a two- or multi-component mixing process, with a metering tube (6) and with an elastic, tubular closure element (7) applied to the metering tube (6), wherein the closure element (7) in a closed or rest state of the metering valve (4) closes at least one outlet opening (8) of the metering tube (6) against the outlet of a liquid flow present in the metering tube (6) and is reversibly expandable in a metering operation of the metering valve (4) under a metering pressure of the liquid flow in order to allow the outflow of the liquid flow via the outlet opening (8).

Provided is an isolation valve including: a valve unit movable along an axis; a body inside which a valve hole and a valve chamber allowing a fluid to flow therethrough are formed; a diaphragm unit having a thin film part formed annularly about the axis to isolate the valve chamber from an adjacent space and a base part connected on the outer circumferential side of the thin film part; a static charge eliminating unit arranged interposed between the body and the base part in a direction along the axis; and an electrical conduction part contacted with the static charge eliminating unit and maintained at a ground potential, and the static charge eliminating unit has an exposed part formed of an electroconductive fluororesin material, which contains a fluororesin material and an electroconductive material dispersed in the fluororesin material, and exposed to the valve chamber.

This design allows for maintaining a good closed state while avoiding a rapid pressure increase due to the water hammer phenomenon. [Solution] The device comprises a contact portion 24a that comes into contact with the valve seat, a deformable portion 24b that is elastically deformed when opening and closing, and a plate-like portion 25 made of a material with higher hardness than the contact portion 24a and the deformable portion 24b, to which the contact portion 24a and the deformable portion 24b are attached. The plate-like portion 25 is provided with a convex portion 25a that is inserted into a cylindrical portion having a valve seat at its tip. The contact portion 24a is provided with an insertion hole 24ha through which the convex portion 25a can be inserted, and an annular projection 24p that surrounds the insertion hole 24ha and has a smaller diameter than the inner diameter of the cylindrical portion, projecting toward the seating direction of the contact portion 24a to the valve seat. The projection length of the annular projection 24p is defined such that the insertion length of the contact portion 24a into the cylindrical portion when the contact portion 24a is seated on the valve seat is shorter than the insertion length of the convex portion 25a into the cylindrical portion.

The pinch valve includes a base having a body and a head, and an anvil aligned with the base and having a shaft and a pinch tip. The head is disposed at a first end of the body. The head includes a contact protrusion having a rounded surface. The rounded surface defines an apex disposed furthest from the second end of the body about the base axis. The pinch tip is disposed at the first end of the shaft. The pinch tip includes two flat surfaces. The two flat surfaces are disposed at an acute angle relative to the anvil axis to form an acute tip at a point furthest from the second end of the shaft about the anvil axis. The base and the anvil are aligned to form a gap between the rounded surface and the acute tip and are movable between a first position and a second position to change the size of the gap.

The present invention provides a fluid component body having a leak test passage. [Solution] To test for leaks passing through each valve body seal of the manifold valve assembly 610, in an exemplary manner, the manifold assembly is installed in a fluid system under vacuum and connected to a leak detection device (e.g., a mass spectrometer), and a test fluid (e.g., a tracer gas such as helium or hydrogen) is sequentially supplied to each of the leak test ports 663a, 663b, and the leak detection device is used to measure the ingress of the test fluid into the valve cavities 612a, 612b that have passed through the body seal (e.g., due to discontinuities or contaminants in the bead section or outer seal surfaces 625a, 625b) to identify leaks in the body seal.

To provide a fluid control valve capable of increasing the stroke amount.SOLUTION: A diaphragm member 34 has a center located on the extension line of an axial center CL of an operation rod 9 and is spherically crown-shaped swollen to the side of the operation rod 9. At the peak, it is held from both sides in the direction parallel to the axial center CL by a first holding piece 93 contacting the diaphragm member 34 from the side of the operation rod 9 and a second holding piece 323 contacting the diaphragm member 34 from the side of a valve element 32. The first holding piece 93 and the second holding piece 323 are formed in a circle-shape located coaxially with the operation rod 9, and a diameter D11 of the first holding piece 93 is longer than a diameter D of the second holding piece 323. The face of the first holding piece 93, opposed to the diaphragm member 34, is formed to be swollen to the side of the diaphragm member 34, as a convex face 94 having a center on the axial center CL of the operation rod 9.SELECTED DRAWING: Figure 2

To provide a fluid control valve capable of suppressing deformation of an annular valve seat even under a high-temperature condition, thereby preventing deterioration of sealing performance and fatigue damage of a diaphragm member.SOLUTION: In a fluid control valve 1 that comprises a pressing member (e.g., a second stem 32), a diaphragm member 34, and a valve seat 33, and in which the pressing member (second stem 32) presses and deforms the diaphragm member 34 to abut against the valve seat 33, the valve seat 33 comprises a first annular valve seat 331 made of fluororesin and a second annular valve seat 332 made of heat-resistant resin, which are coaxially adjacent to each other, where the heat-resistant resin has a deflection temperature under load at 1.82 MPa measured in accordance with ASTM D-648 that is higher than that of the fluororesin.SELECTED DRAWING: Figure 2

The application discloses a kind of pneumatic diaphragm actuator and pneumatic actuator.The pneumatic diaphragm actuator of the application includes film cover, with cavity inside, be equipped with air inlet and exhaust hole and all with cavity communication;Diaphragm, be in cavity, and set on the film cover between air inlet and exhaust hole, and can reciprocate in cavity under the action of gas pressure;Push rod, one end is connected with diaphragm, the other end is arranged on film cover and extends to the outside of film cover;Anti-rotation mechanism, between diaphragm and film cover, with diaphragm transmission connection, for guiding diaphragm moves according to linear trajectory.The pneumatic diaphragm actuator of the application is equipped with anti-rotation mechanism, in the process that diaphragm drives push rod to move, can avoid the breakage or damage of diaphragm due to the rotation of diaphragm, prolongs the life of diaphragm and pneumatic diaphragm actuator.

This utility model relates to the technical field of pneumatically controlled water valve equipment, and in particular to an integrated pneumatically controlled valve. The first valve core of the pneumatic control component is movably disposed within a first cavity, with the end of the first valve core furthest from the pneumatic control connector located on a first diaphragm. The air supply channel of the air supply component has a first opening at one end of the first valve core, through which the first valve core passes to control the opening and closing of the air supply channel. A second opening is provided on the side of the air supply channel facing the water supply component, and a second diaphragm is disposed at the second opening. One end of the second valve core of the water supply component contacts the second diaphragm, and the other end of the second valve core is located within the water supply channel. The second valve core is used to cooperate with the pneumatic control component to control the opening and closing of the water supply channel. Under normal conditions, the pneumatic control component is closed, and the air supply channel continuously supplies air, while the water supply channel simultaneously and continuously supplies water. When operation stops, the pneumatic control component supplies air; one set of pneumatic control components can simultaneously control the closing of both the air supply component and the water supply component, making operation simple and convenient.

The pressure self-adaptive sealing device of the demineralized water tank overflow pipe comprises a supporting piece, the supporting piece is tubular, a pipe cavity is defined by the supporting piece, and a connecting cavity is formed in one end of the pipe wall of the supporting piece; the number of the hinge pieces is at least two, the hinge pieces are arranged on the inner wall of the pipe cavity, and all the hinge pieces are located on the same section of the pipe cavity; the membrane assemblies are rotatably arranged in the pipe cavity through hinge pieces, the membrane assemblies are circumferentially and evenly distributed and completely cover the section of the pipe cavity, and when the pressure difference value of the two sides of each membrane assembly exceeds a threshold value a, the membrane assemblies generate elastic deformation so as to form an opening allowing fluid to pass through. The pressure self-adaptive sealing device can prevent carbon dioxide in the air from entering the desalting water tank through the overflow pipe at ordinary times, and in addition, the pressure self-adaptive sealing device can automatically adjust the membrane assembly to be opened according to the internal pressure of the desalting water tank and the drainage condition, so that the overflow pipe can serve as a standby breathing opening and normal overflow discharge.

The present invention circumvents a rapid pressure rise due to hydraulic shock while making it possible to maintain a good closed state.　The present invention comprises: a contact part 24a which is brought into contact with a valve seat; a deformation part 24b which is elastically deformed during opening and closing; and a plate-shaped part 25 which is formed from a material having a higher hardness than the contact part 24a and the deformation part 24b, and to which the contact part 24a and the deformation part 24b are attached. The plate-shaped part 25 is provided with a protruding part 25a that is inserted into a cylindrical part, the tip of which is provided with the valve seat. The contact part 24a is provided with an insertion hole 24ha through which the protruding part 25a can be inserted, and an annular projection 24p that surrounds the insertion hole 24ha, has a diameter smaller than the inner diameter of the cylindrical part, and projects in the seating direction of the contact part 24a with respect to the valve seat. The annular projection 24p has a projection length defined such that the insertion length into the cylindrical part when the contact part 24a is seated on the valve seat is shorter than the insertion length of the protruding part 25a into the cylindrical part.

A film for a battery exterior body has a thickness of 10 μm or greater, including a heat-meltable tetrafluoroethylene-type polymer having 50 or more carbonyl group-containing groups per 106 carbon atoms in its main chain and a fluorine content of from 60% by mass to 75% by mass.

A valve is provided for use with a container for mixing biological fluids to facilitate homogeneous mixing and sampling. [Solution] The device comprises a body 14 having a first section 26 and a second section, an expansion flange disposed on the body 14, an elongated bore penetrating the body and having a proximal end and a distal end, a longitudinally displaceable plunger 62 disposed within the bore and extending along the bore, a diaphragm seal 60 that seals the bore, a gland seal 51 that seals the bore at a position midway between the diaphragm seal 60 and the distal end of the bore, the plunger 62 penetrating the gland seal 51 and being sealed and fixed to the gland seal 51, and a fluid transfer opening in the bore between the diaphragm seal 60 and the gland seal 51, wherein the longitudinal displacement of the plunger 62 moves the diaphragm seal 60 and opens the bore.

A control valve (flow-rate regulator valve (16)) includes: a valve housing (20) including a flow channel block (21) with a flow channel in which a fluid flows; a valve assembly (50) mounted on the valve housing (20) to be movable in a first direction and provided with a valve body (31) configured to change the degree of the communication opening of the flow channel; and an operation shaft (51a) including a shaft section (53) inserted into an insertion hole (52) formed in the valve housing (20) and a tapered shaft section (54) being in contact with the valve assembly, and a position of the valve body through the tapered shaft section is adjusted by motion of the operation shaft in a second direction.

The invention relates to a solenoid valve for controlling fluid flows (S), comprising a valve housing (2), at least one valve inlet (14) and at least one valve outlet (15), which are flow-connected to each other via a valve seat (12), and a plunger (3) movable along an actuating direction (R), which can be adjusted between an opening position releasing the valve seat (12) and a closing position closing the valve seat (12) by energizing a solenoid coil (4), wherein the plunger (3) is connected at its end facing the valve seat (12) to a diaphragm (6) fixed relative to the valve housing (2), the diaphragm (6) having a transverse deformation area (9) for compensating actuating movements of the plunger (3).

The coupling arrangement (2, 36) for a fluid connection in a vehicle has two fluid coupling parts (4A, 4B), each with a fluid channel (14) for a fluid, wherein a slotted diaphragm (18) is installed in each fluid channel (14), and each diaphragm (18) closes the respective fluid channel (14) at its end when coupled, allowing fluid flow only when a predetermined fluid pressure is exceeded. This provides drip protection when the coupling arrangement is disconnected.

To provide an orifice built-in valve which achieves improvement of maintainability and sealability.SOLUTION: An orifice built-in valve has a body 10 in which a storage recessed part 13, having a built-in valve element and connected with a primary side passage 11 and a secondary side passage 12, is defined. The valve element includes: a gasket 15 including a lower tier primary side through hole and a lower tier secondary side through hole and having a substantially discoid shape; an orifice base 20 disposed on the gasket and having a middle tier primary side through hole; an orifice plate 30 disposed on the orifice base; an inner member 40 which is disposed above the orifice plate and having an upper tier primary side through hole and an upper tier secondary side through hole; a valve seat 50 provided in a periphery of an opening of the upper tier primary side through hole of the inner member; a fixing ring 60 which threadedly engages with an inner peripheral surface of the storage recessed part 13 and fixes each element; and a diaphragm 70 which contacts with or separates from the valve seat to block and allow communication between the primary side through hole and the secondary side through hole.SELECTED DRAWING: Figure 1

A coupling device (1) for coupling to a flexible diaphragm (51) of a diaphragm device (50) and comprising a base structure (10) for attaching the diaphragm device (50) thereto; an actuator structure (20) mounted movable along an actuation direction (A) relative to the base structure (10) and having a diaphragm grasping element (22) pivotably mounted between a release position and a grasping position for coupling the actuator structure (20) to the flexible diaphragm (51) in the grasping position; and a fixation structure (30) mounted movable along a fixation direction (F) relative to the base structure (10) between an open position and a closed position and designed to fix in the closed position the diaphragm grasping element (22) against leaving the grasping position.

This invention discloses an inner liner for a pinch valve with an inflatable sealing ring, belonging to the field of pinch valves. It includes an outer cylinder, an outer support ring, an inner liner, an inner support ring, an upper cover plate, an inner cover plate, a screw and nut assembly, and an inflation / deflation port. The outer cylinder has outer support rings fixedly connected to its upper and lower ends. The inner liner is placed inside the outer cylinder, with its upper and lower ends sandwiched between the outer and inner support rings. An upper cover plate is fixedly connected above the outer support ring, and an inner cover plate is fixedly connected above the inner support ring. Multiple screw and nut assemblies are fixedly connected in a circular arrangement on the outer sides of the upper and lower inner cover plates. An inflation / deflation port is provided on one side of the upper screw and nut assembly. This invention utilizes an annular interlayer to achieve zero-leakage full closure with a lower shut-off air pressure, reducing the rubber expansion and contraction of the inner liner, improving safety, and increasing its service life.

Unit (10) for regulating or controlling a fluid pressure, comprising a valve housing (12) including an inlet (28) and an outlet (30) for the fluid, and a switching foil (22) for switching at pressure differences of 1 to 250 mbar, preferably from 1 to 100 mbar, for regulating, releasing, or shutting off a flow of the fluid between the inlet (28) and the outlet (30), wherein the switching foil (22) is made of PTFE (polytetrafluoroethylene), wherein the switching foil (22) has a plate-like flat body (16) with a bending area (18) surrounding a central closing area (24), wherein, when the switching foil (22) is switched, the bending area (18) moves the closing area (24) relative to a valve seat (32) in an axial direction (L) towards or away from the valve seat (32) by means of a low-stretch, in particular stretch-free, bending movement. (32) moved away,wherein the bending movement is carried out over a large area of ​​the switching foil (22) and with low elastic deformation in the form of a change in curvature with low elongation of less than 10%, wherein the bending area (18) extends radially in a wave-like manner around the closure area (24), wherein the switching foil (22) has a thickness that varies by at most 50% over its entire extent, wherein the switching foil (22) has a thickness (52) of at least 0.5 mm, preferably of at most 0.3 mm, particularly preferably of at most 0.2 mm, at least in the bending area (18), and / or wherein the switching foil (22) has a diameter (54) of less than 150 mm, preferably between 40 mm and 100 mm, particularly preferably between 50 mm and 80 mm.

Examples disclosed herein relate to a cartridge including: a body with a first groove and a second groove, the body including a body inlet area and a body outlet area; an o-ring coupled to body via the first groove; a throttle pin coupled to the top retainer through the inlet area; a spring cap with a groove area; a spring cap o-ring coupled to the spring cap via the groove area; a spring coupled to a bottom retainer; a diaphragm coupled to the bottom retainer; and a top retainer coupled to the diaphragm.

This utility model discloses a spring-loaded diaphragm valve, comprising a valve body, flow channel, valve cover, mounting base, valve stem, valve core, sealing push block, spring, diaphragm, internal insulation cavity, side groove, venting switching assembly, input end, output end, and control shaft. This utility model has the following advantages and effects: it improves the insulation method of the valve body, eliminating the need for an additional external insulation layer. The venting switching assembly is installed via a side groove, and warm air is introduced through the input end. After the warm air is introduced, the venting switching assembly automatically switches to the on state, connecting the input and output ends, allowing the warm air to smoothly enter the internal insulation cavity for internal insulation. After the warm air has entered, the venting switching assembly switches back to the off state to prevent leakage of warm air from the internal insulation cavity. The control shaft allows manual switching of the venting switching assembly from the off state to the on state when no warm air is introduced at the input end, facilitating the discharge of warm air.