Abstract: A flow control device used in a vehicle heat exchange system and a method for manufacturing the same are provided. The flow control device includes a housing and a valve body assembly. The valve body assembly comprises a first valve plate, a second valve plate, and a transmission n part. The housing has an accommodating portion and a protruding limiter, in which the protruding limiter circumferentially limits the first valve plate, a lower side surface of the second valve plate (22) is disposed opposite to the protruding limiter, and at least a part of the lower side surface of the second valve plate is in contact with the first valve plate. The transmission part drives the second valve plate to open or close the circulating valve port of the first valve plate and/or adjust the opening degree of the circulating valve port, such that the product sealing performance can be improved.

Abstract: A diaphragm valve with a drive housing and with a drive subassembly arranged in the drive housing is proposed, for controlling a process fluid by means of a diaphragm. The diaphragm valve comprises a pretensioning subassembly for the arrangement between the drive subassembly and the diaphragm. A first spring element holds the drive subassembly in a pretensioned state before introduction into the drive housing. A second spring element holds the pretensioning subassembly in a pretensioned state before introduction into the drive housing.

Abstract: A cartridge type valve core structure of a water tap includes a cartridge casing and a valve core. The cartridge casing has an accommodation room therein. An outer wall of the cartridge casing is provided with a first engaging portion for connecting with the water tap. The valve core is disposed in the accommodation room. The valve core includes a control end, a water inlet end, a water outlet end, and at least one water room. The control end extends out of the cartridge casing from a top end of the accommodation room. The water inlet end extends out of the cartridge casing from a bottom end of the accommodation room. The water outlet end extends out of the cartridge casing from one side of the accommodation room. Through the aforesaid modular structure, the valve core can be mounted to the water tap quickly through the cartridge casing.

Abstract: A tire having a tire cavity is disclosed, wherein the tire has a bi-directional pump assembly including a pump passageway having an inlet end and an outlet end, and being operative to allow a portion of the pump passageway near a tire footprint to substantially close and open the pump passageway. The tire includes a valve assembly having a valve housing, wherein a diaphragm is mounted in the valve housing forming an interior chamber, and wherein the diaphragm is responsive to the pressure of the tire cavity. The interior chamber has an inlet in fluid communication with outside air, and an outlet in fluid communication with inlet and outlet of the pump passageway. The valve assembly further includes an inlet control valve having a valve bottom positioned over the outlet and operative to open and close the outlet. The inlet control valve has a first end connected to the diaphragm, and a resilient member biases the inlet control valve into the open position.

Abstract: A tire having a tire cavity is disclosed, wherein the tire has a bi-directional pump assembly including a pump passageway having an inlet end and an outlet end, and being operative to allow a portion of the pump passageway near a tire footprint to substantially close and open the pump passageway. The tire includes a valve assembly having a valve housing, wherein a diaphragm is mounted in the valve housing forming an interior chamber, and wherein the diaphragm is responsive to the pressure of the tire cavity. The interior chamber has an inlet in fluid communication with outside air, and an outlet in fluid communication with inlet and outlet of the pump passageway. The diaphragm is positioned over the outlet and operative to open and close the outlet. A resilient member biases the diaphragm into the open position.

Abstract: A tire having a tire cavity is disclosed, wherein the tire has a bi-directional pump assembly including a pump passageway having an inlet end and an outlet end, and being operative to allow a portion of the pump passageway near a tire footprint to substantially close and open the pump passageway. The tire includes a valve assembly having a valve housing, wherein a diaphragm is mounted in the valve housing forming an interior chamber, and wherein the diaphragm is responsive to the pressure of the tire cavity. The interior chamber has a first hole in fluid communication with the inlet end of the pump passageway, a second hole in fluid communication with the outlet end of the pump passageway, and a third hole in fluid communication with the outside air. The valve housing has a passageway in fluid communication with the tire cavity and the outlet end of the pump.

Abstract: A diaphragm device comprising: a supporting member; a flexible membrane that is supported by the supporting member; and a housing that accommodates the flexible membrane and the supporting member, and wherein the flexible membrane air-tightly separates a first chamber and a second chamber connected to the outside through a through-hole formed in a membrane supporting portion of the supporting member, inside the housing, wherein an avoidance recessed portion to avoid interference with an opening edge of the through-hole is formed at a position corresponding to the through-hole in the flexible membrane, wherein the avoidance recessed portion is provided at a thick portion thicker than the other portion of the flexible membrane, and the thick portion protrudes toward the first chamber.

Abstract: A diaphragm device comprising: a supporting member; a flexible membrane that is supported by the supporting member; and a housing that accommodates the flexible membrane and the supporting member, and wherein the flexible membrane air-tightly separates a first chamber and a second chamber connected to the outside through a through-hole formed in a membrane supporting portion of the supporting member, inside the housing, wherein an avoidance recessed portion to avoid interference with an opening edge of the through-hole is formed at a position corresponding to the through-hole in the flexible membrane, wherein the avoidance recessed portion is provided at a thick portion thicker than the other portion of the flexible membrane, and the thick portion protrudes toward the first chamber.

Abstract: An apparatus is supplied for a self adjusting regulator suited for an irrigation emitter. A curved flow channel is integrated into a concave dome shaped surface. A deformable member deforms to approach the surface to adjust the resistance to flow. The concave dome shaped surface may match a deformed shape of the membrane. Irregularities in the interface between the surface and the deformable member are configured to achieve a desired discharge under varying flow conditions. The deformable member may activate an inlet filter cleaner by pushing a ram and thereby unclogging the filter.

Abstract: A diaphragm valve has a valve body with a passage to be opened to allow fluid to pass through the valve body and to be closed to prevent fluid from passing through the valve body, and has a bonnet assembly with a pressure ring to load and unload a diaphragm based on a first spring constant to seal a peripheral portion of the diaphragm, and a compressor to close or open the passage of the valve body. The valve body and bonnet assembly have a connection that allows the valve body and bonnet assembly to be substantially fixed together with a second spring constant that is substantially higher than and independent from the first spring constant.

Abstract: A diaphragm control valve has a universal diaphragm mounting location, the diaphragm control valve includes a bonnet, a valve body, a diaphragm, and a clamping washer. The bonnet includes a first clamping surface that transitions into a first annular retention surface formed by a skirt, and the valve body includes a second clamping surface that transitions into a second annular retention surface formed by an upturned annular lip.

Abstract: A control assembly for converting a “fail-close” regulator to a “fail-open” regulator, or vice versa, without having to modify or reconfigure a casing of the regulator includes a control member, a central rod, and a spring disposed between first and second spring seats. A regulator including the control assembly includes a valve body and an actuator casing, the valve body defining a fluid flow-path. The control member is slidably disposed within the actuator casing and adapted for displacement relative to the valve body for controlling the flow of fluid through the flow-path. The spring and spring seats are disposed about the central rod, such that the spring biases the control member into a predetermined position relative to the regulator casing.

Abstract: In a valve stem connection structure of a pressure reducing valve, an insertion recess portion (72) opened toward a valve mechanism is coaxially provided in a diaphragm rod (68); a reduced diameter stem portion (30a) and a pair of enlarged diameter stem portions (30b, 30c) are provided in one end portion of the valve stem (30); a holding plate (74) is inserted into the insertion recess portion (72) while the reduced diameter stem portion (30a) is loosely inserted into the engaging recess portion (73); and an engaging ring (78) expandable and contractable in a radial direction of the valve stem (30) is engaged with an arc-shaped first engaging groove (76) provided in an outer periphery of the holding plate (74) and an annular second engaging groove (77) provided in an inner periphery of the insertion recess portion (72).

Abstract: A pressure regulator housing assembly includes a lower housing and an upper housing; a plunger and diaphragm assembly supported within the lower and upper housings, the plunger movable toward and away from a valve seat. The diaphragm has a radially inner edge fixed to one end of the plunger and a radially outer edge clamped between an annular surface within said upper housing and a surface of a clamp ring locked against rotation relative to said upper housing thereby isolating said diaphragm from any contact with the lower housing. Upon assembly of the upper and lower housings requiring relative rotation therebetween, an upper edge of the lower housing is engaged by a lower surface of the clamp ring.

Abstract: A diaphragm valve including a valve body, a diaphragm assembly and an actuator assembly having a housing body that isolates the actuator from the ambient atmosphere. The diaphragm assembly is welded to the valve body to reduce and/or eliminate fluid leakage around the diaphragm assembly. Additionally or alternatively, the housing body for the actuator assembly may be welded to the valve body to reduce fluid leakage. The welding may be performed using ultrasonic welding techniques.

Abstract: A securing element (26) for securing against the loosening by rotation of at least two screwable housing parts (3,2), the securing element (26) being arranged so as to be clamped in one of the housing parts (3) and interact with the other housing part (2).

Abstract: A diaphragm valve feature a valve body having a passage that opens to allow fluid to pass, and closes to prevent fluid from passing, through the valve body; and a bonnet assembly having a pressure ring to load/unload a diaphragm depending on a first spring constant to seal a peripheral portion thereof, and a compressor to close/open the passage of the valve body. A rotational connection fixes together the valve body and bonnet assembly with a second spring constant that is higher than and independent from the first spring constant, and includes the valve body having a rim with two shouldered pins on opposite sides. The bonnet assembly has a corresponding rim with two keyways on opposite sides thereof. Each keyway is recessed to receive and engage a respective shouldered pin when the bonnet assembly is rotated relative to the valve body.

Abstract: A diaphragm sealed flow cavity comprises a first body comprising a support surface, a diaphragm comprising an outer portion that is joined by a weld to the first body, a clamped portion, and an inner portion that is movable along an axis, with the clamped portion of the diaphragm being compressed between the bearing surface and the support surface. The diaphragm sealed flow cavity may include a cylindrical body having a crimped portion for joining the cylindrical body to the first body. The diaphragm sealed flow cavity may also include a member that applies a live load to the clamped portion of the diaphragm. In the exemplary embodiments, the diaphragm sealed flow cavity may be realized as part of a diaphragm flow control valve having a valve body, diaphragm and a housing.

Abstract: Diaphragm assemblies for use with fluid control devices are described. An example diaphragm assembly includes a body defining a plurality of chambers to be fluidly coupled to an outlet pressure of a fluid control device. Each of the chambers is spaced along a stem at least partially disposed in the chambers, and the stem is to move to control a flow of fluid through the fluid control device. Additionally, the example diaphragm assembly includes a first plurality of diaphragms, each of which is disposed in a corresponding one of the chambers, and each of which is coupled to the stem to move the stem in response to the outlet pressure of the fluid control device.

Abstract: A gas pressure regulator comprises a main body having a first, gas inlet pipe and a second, gas outlet pipe, a calibrated gas passage through which gas flows from the first pipe to the second pipe, a shutter housed at least partially in the main body and mobile lengthwise along a first defined line to adjust the opening of the calibrated passage, a device for actuating the shutter and a regulator spring unit opposing the movement of the shutter.

Abstract: A single chamber two-way servo-operated valve includes: a valve body presenting an inlet aperture, an outlet aperture, and an access; a cover to close the access of the valve body; a port dividing the valve body interior into an inlet section and an outlet section; a valving element including a disc for closing the port; and an actuating chamber at least partially defined by the cover. The disc and a flexible diaphragm are connected to the valving element. The disc of the valving element includes a rigid central core which is at least partially covered by a rubber layer adhering to the central core. The rubber layer extends from the edge of the disc to form the flexible diaphragm.

Abstract: A gas pressure regulator comprises a main body having a first, gas inlet pipe and a second, gas outlet pipe, a calibrated gas passage through which gas flows from the first pipe to the second pipe, a shutter housed at least partially in the main body and mobile lengthwise along a first defined line to adjust the opening of the calibrated passage, a device for actuating the shutter and a regulator spring unit opposing the movement of the shutter.

Abstract: A pressure regulator housing assembly includes a lower housing and an upper housing; a plunger and diaphragm assembly supported within the lower and upper housings, the plunger movable toward and away from a valve seat. The diaphragm has a radially inner edge fixed to one end of the plunger and a radially outer edge clamped between an annular surface within said upper housing and a surface of a clamp ring locked against rotation relative to said upper housing thereby isolating said diaphragm from any contact with the lower housing. Upon assembly of the upper and lower housings requiring relative rotation therebetween, an upper edge of the lower housing is engaged by a lower surface of the clamp ring.

Abstract: The present invention discloses multiple loop reactor wherein one of the settling legs transferring polymer product from one loop to a further loop can be taken out of service or re-opened without interfering with the operation of said multiple loop reactor.

Abstract: A gas pressure regulator comprises a main body having a first, gas inlet pipe and a second, gas outlet pipe, a calibrated gas passage through which gas flows from the first pipe to the second pipe, a shutter housed at least partially in the main body and mobile lengthwise along a first defined line to adjust the opening of the calibrated passage, a device for actuating the shutter and a regulator spring unit opposing the movement of the shutter.

Abstract: A method is provided for retrofitting a conventional plastic valve to allow the valve to be utilized in a waste water system. The method includes strengthening the valve or valve housing using various methods.

Abstract: A regulating valve includes an outer housing comprised of a cap joined to a base. The housing is internally subdivided by a barrier wall into a head section and a base section, the latter being further subdivided by a modulating assembly into a fluid chamber and a spring chamber. An inlet and a 90° outlet in the cap communicate with the fluid chamber. Fluid at a variable pressure is admitted into the fluid chamber via the inlet, with the modulating assembly serving to maintain the fluid exiting the fluid chamber via the outlet at a substantially constant pressure.

Abstract: A dual valve assembly includes two regulating valves. Each valve includes an outer housing comprised of a cap joined to a base. The housing is internally subdivided by a barrier wall into a head section and a base section, the latter being further subdivided by a modulating assembly into a fluid chamber and a spring chamber. An inlet and a 90° outlet in the cap communicate with the fluid chamber. Fluid at a variable pressure is admitted into the fluid chamber via the inlet, with the modulating assembly serving to maintain the fluid exiting the fluid chamber via the outlet at a substantially constant pressure. A smaller one of the valves has its base nested within the spring chamber of the other larger valve.

Abstract: A flow-through pressure regulator includes a divider, a closure member and a housing. The divider separates a first chamber from a second chamber, and includes a passage that provides fluid communication between the first and second chambers. The closure member moves relative to the divider between first and second configurations. The first configuration substantially prevents fluid communication through the passage, and the second configuration permits fluid communication through the passage. The housing includes a first homogeneous housing portion and a second housing portion. The first homogeneous housing portion includes an inlet, defines the first chamber, and forms a pocket that receives a majority of the closure member. The second housing portion includes an outlet and defines the second chamber.

Abstract: A pressure regulator having a housing with an inlet port and an outlet port. A plug is located within the housing and dividing the housing into an upper chamber and a lower chamber, with the upper and lower chamber being connected by a vent. The plug includes a fluid path between the inlet port and the bore. A yoke is adapted selectively close the fluid path in the plug. A diaphragm is located in the upper chamber and is connected to the yoke. A biasing member biases the yoke to open the fluid path through the plug. The diaphragm is configured to move the yoke to open the fluid path when pressure in the lower chamber and vented to the upper chamber through the vent is above a predetermined amount. The pressure regulator can also include a second biasing member used to positively close the fluid path through the plug.

Abstract: A pressure regulator has a closing member which controls a pressure-medium inlet and on which is supported a valve spring arranged in a spring can. The spring can includes a casing part and of a lid. The valve spring is supported with one end against the lid. The lid is pushed into the casing part until the necessary spring force is set exactly and is then connected to the casing surface of the casing part by means of radial indentations.

Abstract: A filter device and method for diaphragm type flush valves includes positioning the filter device in a cavity of the valve, between an inlet and an outlet pipe, and between an inlet and a bleed hole of a diaphragm of the valve. The filter device spans the entire span between an outlet pipe and a valve wall. Thus, all water entering the valve through the inlet passes through the filter prior to exiting through the outlet pipe, or prior to passing through the bleed hole in the diaphragm. The filter device can have a tubular or frusto-conical shape with a first, lower opening sealing about the outlet pipe, and a second, upper opening sealing against the valve wall.

Abstract: A fuel component assembly having a fuel component disposed between a base and a cover, which prevent fluid communication to an exterior thereof. The fuel component defines at least one aperture, the base supports the fuel component and defines a passage in communication with the at least one aperture. The cover is located proximate the base. A securement having a projection and the receiver that engage to form a fluid tight seal. The projection is radially disposed about a longitudinal axis of the fuel component, and the receiver continuously engages the projection. The projection being disposed on one of the cover and the base, and the receiver being disposed on the other of the cover and the base. The fuel component assembly allows for a method of encapsulating a fuel component within a fuel supply.

Abstract: A pressure regulator having a base and a bonnet. The base includes a plurality of upstanding ridges, with an opening being defined between each of the ridges. The bonnet includes a peripheral rim having a plurality of engagement tabs located within each of the openings defined by the ridges of the base. The base is connected to the bonnet by folding the ridges over the peripheral rim of the bonnet. The ridges include side surfaces that mate with side edges of the engagement tabs to maintain the peripheral rim of the bonnet against the ridges as tension is applied to the peripheral rim that forces the peripheral rim away from the ridges. The bonnet also includes a plurality of interference tabs that engage an interior surface of the ridges before the ridges are folded over the peripheral rim of the bonnet to maintain the bonnet in proper position.

Abstract: A gas-pressure regulator has a body formed with a gas inlet and a gas outlet defined therein, a diaphragm separating the body from the bonnet, a lifting rod extending downward from the diaphragm, a pair of parallel protrusions projecting upward from the inner bottom of the body, a pair of aligned recesses formed on the tops of the protrusions, a pair of threaded holes defined in the tops of the protrusions near the respective recesses, and a pair of screws formed with heads above the protrusions and shanks screwed into the threaded holes. The gas-pressure regulator also includes a control lever having a first end and a second end, with a pair of pins near one end thereof extending integrally and laterally from opposite sides of the control lever. The pins are placed in the recesses of the protrusions and retained therein by the heads of the screws, and the second end of the control lever is connected to the lifting rod.