Abstract: A debris trap for use in a gas valve fitting is provided. The debris trap comprises an elongated body extending about a first axis. The elongated body forms a passage therein extending along the first axis between an inlet formed in a first end of the elongated body and at least one outlet formed in the elongated body. The at least one outlet is formed in a side wall of the elongated body to provide fluid communication with the passage about a second axis perpendicular to the first axis.

Abstract: A valve comprises a housing, a conduit, and a shut-off member, and a plurality of ribs. The conduit is fixed in position relative to the housing. The ribs are spaced from the conduit. The shut-off member is fixed in position within a cavity of the housing via the ribs. The gate has a fluid passageway extending therethrough and is movable relative to the shut-off member between opened and closed positions. The gate is able to linearly reciprocate between opened and closed positions along the center axis of the conduit. The gate is engaged with the shut-off member when the gate is in the closed position in a manner preventing fluid from flowing through the fluid passageway of the gate. The opened position of the gate allows fluid to flow through the fluid passageway of the gate.

Abstract: A connector includes a housing having a first female-side connecting port, a liquid circulation space, and a male-side connecting section communicating with the liquid circulation space, a first valve disk made of elastic material and having a hollow section and a top slit formed in the top and received in the housing, a pin movably installed in the housing, and an urging section for urging the pin axially. In this connector, the top slit spreads and communication is established between a tube interior and the hollow section, and at the same time the top of the pin is pressed to cause the pin to move axially, enlarging the clearance between the hollow section and the pin, thereby establishing communication between the tube interior and the male-side connecting section interior successively through the top slit, the hollow section and the liquid circulation space.

Abstract: A soft start device for compressed air systems comprises a primary inlet at which compressed air at a primary pressure may be supplied, the primary inlet being connected with a secondary outlet able to be coupled with a load, by a valve circuit, at which compressed air is taken at the secondary pressure lower than or equal to the primary pressure, a principal valve placed between the primary and secondary outlet, said principal valve being able to be shunted by a bypass, a choke device being placed in the bypass, the principal valve and the choke device together with further valves of the valve circuit being connected together in a circuit and the valve circuit placed in a standard venting switching setting that the secondary outlet is vented.

Abstract: A retaining cylinder is threadedly engaged with a fixed cylinder of a flow rate control valve, by means of a screw section formed on an outer circumferential surface. A fence cover, which is capable of expanding and contracting in the axial direction, is installed between the fixed cylinder and a float rod supported by the retaining cylinder. An upper seal member is provided on the float rod, on the upper side thereof with respect to a valve plug. A lower seal member is provided on the lower side thereof with respect to the valve plug. The upper seal member and the lower seal member have substantially identical diameters. The float rod is displaced under an energizing action of a stepping motor. The flow rate of a fluid is controlled depending on a distance of the valve plug with respect to a valve seat.

Abstract: A mixing body for diverting a portion of a liquid, e.g., water flow, into a cartridge of fertilizers, fungicides, hormones, pesticides or the like to form effluent. The effluent is reintroduced to the water flow and goes to a downstream sprinkler or application system. The cartridge, which may contain liquid concentrate, is inserted into the mixing body, which has inlet and outlet one way valves that puncture a sealing layer of the cartridge. The diluted effluent exits through the outlet one way valve and is thus delivered to the irrigation system. The amount of effluent can be regulated by a needle valve that controls the amount of effluent exiting the manifold. The mixing body has a locking system to securely hold the cartridge in place. There is also a plate to protect a user from the sharp inlet and outlet valves when the cartridge is removed.

Abstract: To reduce cost and size of a throttle valve control device, one end 3a of a throttle valve shaft 3 fixedly has a throttle valve lever 5 energized in valve opening direction by a throttle valve lever open spring 8, and rotatably has a drive gear 6 connected to a motor gear 9, a limp opening control lever 15 is fixed at another end 13b of a drum shaft 13 axially supported by a first cover 12, an accelerator drum 14 energized in valve closing direction by a drum close spring 16 is fixed at one end 12a, a first opening directional end face 5a of the throttle valve lever 5 is provided facing a limp opening control end face 15b, and a second opening directional end face 5b of the throttle valve lever 5 is provided facing a drive pin 6a of the drive gear 6.

Abstract: There is provided a microfluidic device capable of preventing the flow of a fluid from being interrupted by bubbles generated in a micro flow passage. In a microfluidic device 10 wherein a micro flow passage 16 having a substantially constant height is formed for allowing a fluid to flow therein and wherein a narrow portion is formed in a portion of the micro flow passage by forming a columnar portion 12c or the like in the micro flow passage, an extending recessed portion 14c for extending the micro flow passage upwards is formed upstream of the narrow portion, and a plurality of raised portions extending in substantially parallel to longitudinal directions of the micro flow passage are formed on a portion of the bottom face of the micro flow passage facing the extending recessed portion if necessary.

Abstract: Solenoid valve for controlling the flow of a fluid in a hydraulic circuit, comprising a valve body having at least one fluid duct, a stopper for allowing or preventing the flow of fluid in the fluid duct, a mechanical connection to actuate the stopper, an electromagnetic actuator arranged to actuate the mechanical connection, and a coupling between the electromagnetic actuator and the valve body via a jacket surrounding the electromagnetic actuator and engaged on a shoulder of the valve body. The jacket holds the electromagnetic actuator in axial engagement against the valve body in a direction of engagement. The shoulder comprises two matching half-washers engaged radially in a peripheral groove of the valve body.

Abstract: Pressure regulator with partial volumes for regulating the operating pressure of fluids, in particular adhesives, at the inlet of a consuming device, the first partial volume (14) being connectable to a fluid source and the second partial volume (24) being connectable to the fluid inlet of the consuming device, wherein the second partial volume (24) has a cylindrical section(24a) of variable size, a connecting channel (22) connecting the first (14) and the second (24) partial volumes, a valve disposed in the first partial volume for opening and closing the connecting channel, said valve having an insert (23) and a movable sealing piston (32), the front end of which forms a sealing body (34) for closing the connecting channel and the rear end of which is sealed against the first partial volume.

Abstract: A manifold-type solenoid valve comprises a main valve section and a solenoid operating section. The main valve section has a spool in a valve hole to which respective switching flow paths for supply, output, and discharge are opened. The main valve section comprises connecting flow paths for collective supply and/or collective discharge having connecting ports, output ports, and an external port for connecting an external piping for independent supply or independent discharge. The output ports are in communication with the switching flow path for output. The connecting flow paths for collective supply and/or collective discharge are in communication with the switching flow path for supply and the switching flow path for discharge. Additionally, the external port is in communication with the switching flow path for supply or the switching flow path for discharge.

Abstract: The present invention relates to improved fluid valves actuable by a non-axial movement of an actuation stem. The non-linear actuable valves embodied in the present invention maintain pressure containment through a novel approach over the prior-art. The exemplary embodiments teach improved non-linear actuable valves that reduce the chances for seal extrusion, particularly at elevated retaining pressure, while keeping the component count low, and are capable of functioning under both high and low pressure.

Abstract: A manifolded fail-safe hydraulic control system provides fail-safe operation of a pipeline valve using no more than a total of 45 proprietary parts in the system. The system controls the operation of a spring return actuator, which in turn strokes the pipeline valve from the normal operating position to the fail-safe position, or from the fail-safe position to the normal operating position. The system enables the valve to automatically stroke to its fail-safe position without external power.

Abstract: A pressure regulating valve comprising a diaphragm for control of process pressure is provided. The diaphragm has a reference pressure on a first side and a process pressure on a second side. The second side is engagable with a process void and at least one vent void such that when the process pressure is below the reference pressure the diaphragm is engaged with the vent void. When the process pressure is above the reference pressure the diaphragm is not engaged with the vent void.

Abstract: The multiple antisymmetric optimal (MAO) control algorithm is disclosed for a gas delivery system including a flow ratio controller for dividing a single mass flow into multiple flow lines. In the MAO control algorithm, each flow line is provided with a flow sensor and a valve actively controlled by a SISO feedback controller combined with a linear saturator to achieve the targeted flow ratio set point. For optimal control performance, these SISO controller and linear saturators are substantial identical. It is proved that each valve control command is multiple antisymmetric to the summation of all other valve control commands. Therefore, the MAO control algorithm guarantees that there exists at least one valve at the allowable maximum open position at any moment, which achieves the optimal solution in terms of the maximum total valve conductance for a given set of flow ratio set points.

Abstract: Fluid sensing shut-off devices with timer and methods of operation to shut off fluid flow if a primary shutoff valve sticks in the on condition. An embodiment is disclosed using a microphone to sense fluid flow, with a microprocessor periodically awakening from a sleep mode to power the sensor and determine if there is flow. If there is flow, the microprocessor times flow, and if flow is not shut off within a predetermined length of time, the microprocessor shuts off the valve. The valve itself normally held in a magnetically latched, valve open state, but may be unlatched by a current pulse to close the valve. Various embodiments and applications are disclosed.

Abstract: An easy-type water pressure reducing apparatus comprises a connecting tube having a bore extending through an inlet end and an outlet end. The bore has an annular seat with a smaller-diameter inlet chamber integrally extending at both sides to which a movable element with an inlet port to receive a spring element is mounted. The movable element also includes positioning guide blocks to fit to water-guiding vents of the inlet chamber, and a ringed groove with a sealing ring to abut tight against the inlet chamber, forming a back-and-forth movable positioning space there-between. Therefore, when water pressure at the outlet end is larger than that at the inlet end, water flow blocked by a water plug of the movable element will push the movable element towards the inlet end, compressing the spring element and closing the water-guiding vents gradually to reduce the water flow and stabilize the water pressure thereby.

Abstract: The present invention provides a corrosion-resistant metal made sensor for fluid and a fluid supply device for which the sensor is employed. More specifically, the corrosion-resistant metal made sensor for fluid is equipped with a corrosion-resistant metal substrate, a mass flow rate sensor part comprising a corrosion resistant metal substrate, a thin film forming a temperature sensor and a heater mounted on the back face side of the fluid contacting surface of the corrosion-resistant metal substrate, and a pressure sensor part comprising a thin film forming a strain sensor element mounted on the back face side of the fluid contacting surface of the corrosion-resistant metal substrate, and the sensor is so constituted that the mass flow rate and pressure of the fluid are measured.

Abstract: A fluid draining manifold includes a central shaft that defines a horizontally registered first passageway and is provided with opposed open ends. The central shaft includes a semi-circular ring anchored to one open end for receiving a locking member, prohibiting unauthorized removal of the apparatus. Outwardly flanged auxiliary shafts are coupled to the central shaft and have linear lengths. Each auxiliary shaft defines an isolated auxiliary passageway in fluid communication with the first passageway. Each auxiliary passageway has opposed open ends in fluid communication with the first passageway such that fluid and debris is directed into the central shaft after traveling through the auxiliary shafts. A discharge shaft is abutted to the central shaft and is in fluid communication with the auxiliary shafts. The discharge shaft has offset open ends formed therein such that fluid and debris converges towards the lower open end prior to exiting the apparatus.

Abstract: A fluid controller that allows facilitated installment, piping and wiring connection to semiconductor manufacturing equipment and does not corrode even when a corrosive fluid is used, includes a flowmeter sensor section having a first ultrasonic transducer which transmits ultrasonic waves in a fluid and a second ultrasonic transducer which receives the ultrasonic waves transmitted from the first ultrasonic transducer and outputs the signal thereof to a flowmeter amp section. An adjustment valve that adjusts the flow rate of the fluid using operation pressure is provided, and at least the flowmeter sensor section and the adjustment valve are connected to and disposed in a casing having a fluid inlet and a fluid outlet.