Abstract: Disclosed is a deterioration determination device for a liquid pumping apparatus including: a casing that forms a reservoir space for storing liquid flowed thereto; a feed valve that introduces working gas into the reservoir space; an exhaust valve that releases the working gas from the reservoir space; and a valve operating mechanism having a float arranged in the reservoir space, and performing a pumping stroke in which the liquid is pumped from the reservoir space under a pressure of the working gas by opening the feed valve and closing the exhaust valve when the float moves up to a predetermined high level, and an inflow stroke in which the liquid flows into the reservoir space and the working gas is released from the reservoir space by closing the feed valve and opening the exhaust valve when the float moves down to a predetermined low level.

Abstract: A solenoid valve includes a sleeve configured such that a spool is movably arranged in the axial direction in the sleeve, a stationary iron core, a movable iron core, and a solenoid unit fixed to one end of the sleeve in the axial direction and configured to move the spool in the axial direction in accordance with movement of the movable iron core. The sleeve has a groove provided at the outer periphery thereof on a side of the solenoid unit and a through hole communicating with the groove and the inside of the sleeve. An attachment portion adjacent to the groove in the axial direction is provided at one end of the sleeve in the axial direction. A recess portion having a larger axial dimension than that of the attachment portion is provided at the stationary iron core.

Abstract: A visual position indicator assembly for limit switch boxes is provided. The indicator assembly has an indicator element configured to be fitted to a shaft of a driving assembly of a limit switch box, and the indicator element has a plurality of adjacent sectors featuring different colors and/or writings. The visual position indicator assembly further has a first mask and a second mask that are both provided with through apertures having the same size and arrangement and that are fitted coaxially to each other. One between the first mask and the second mask is rotatable with respect to the other one. Thanks to this configuration, it is possible to vary the angular width of the through apertures in order to adapt it to the real angular stroke of the indicator element.

Abstract: Disclosed is a vacuum valve with a sensor arrangement having at least one inertial sensor, where the sensor arrangement is designed in such a way it detects a measuring signal with respect to an acceleration impacting on the valve.

Abstract: A valve can include a valve body having an inlet, an outlet, an orifice disposed fluidically between the inlet and the outlet, a fitting having a first end configured to be removably coupled with at least one of the inlet and the outlet of the valve body and a second end configured to be coupled to a fluid conduit, and a retainer configured to at least partially resist uncoupling of the fitting from the valve body. A fitting can be configured to slidingly and sealingly engage at least a portion of an inlet and/or outlet bore. A retainer can be configured to couple with a valve body and a fitting. A fitting can be or include a crimp or press fitting, in whole or in part.

Abstract: The invention relates to a siphon arrangement (1) comprising a housing (2) with an inlet connection piece (3), an outlet connection piece (4), and a siphon seat (5) arranged between the inlet connection piece (3) and outlet connection piece (4), and a siphon element (6) arranged in the siphon seat (5), said siphon element having a siphon portion (7) and an inlet (8) facing towards the inlet connection piece (3) and an outlet (9) leading to the outlet connection piece (4). Water can be guided from the inlet connection piece (3) via the inlet (8) into the siphon portion (7) and from the outlet (9) to the outlet connection piece (4). The siphon element (6) is movable, in particular pivotable, in the housing (2) from a use position into a maintenance position, and when in the maintenance position can be removed, in particular pulled out, from the housing.

Abstract: The present invention relates to a vacuum safety valve for a vacuum pump, in particular for a rotary vane pump, comprising a housing having a flow path extending between an inlet and an outlet for a gas to be conveyed, a valve region that is disposed in the flow path and in which a valve closure element is arranged that is movable between a closed position and an open position, a control space that is associated with the valve region and in which a membrane separating the pressure side from an operating side is arranged, and a control element active between the membrane and the closure element, wherein the closure element is movable via the control element against a return force from the closed position into the open position by means of the membrane acted on at the pressure side and is movable back into the closed position on a removal of the membrane load due to the return force and is held in the closed position.

Abstract: In order to make it possible to obtain information on the movement of a fluid control valve when a fluid control device operates normal, a diagnostic device for a fluid control valve that displaces a valve body to control fluid is adapted to include: a valve body related value reception part that receives a valve body related value inputted/outputted in association with the displacement of the valve body; a displacement sensing part that senses the displacement of the valve body on the basis of the valve body related value; and a displacement count storage part that stores a displacement count sensed by the displacement sensing part.

Abstract: A method and a device for compensating leakage losses in a line system, in which at least one positive displacement pump and at least one shut-off member are provided, wherein the method and device can be used for the isobaric metering of liquid plastic components and wherein the actual liquid pressure in the system is determined by way of a pressure measuring device and, when the shut-off member is closed is regulated to a pressure target value by actuation of the positive displacement pump, wherein the conveying loss rate of the positive displacement pump, which ensues to maintain the pressure target value when the shut-off member is closed is added to a target delivery rate in order to compensate for the leakage loss occurring at the corresponding pressure target value.

Abstract: A fluid regulating device includes a valve having an inlet and an outlet and an actuator coupled to the valve and having a control assembly. The control assembly includes a control element and a diaphragm operably connected to the control element, the control element disposed within the valve and adapted to be displaced relative to a valve seat. A noise attenuation assembly is coupled to the outlet of the valve and includes a cylindrical body and at least one plate disposed in the cylindrical body, the at least one plate having an outer edge. An apparatus for retaining the noise attenuation assembly includes a plurality of rods coupled to the at least one plate. The plurality of rods includes at least one rod having a first end disposed through the outer edge of the at least one plate to support the noise attenuation assembly.

Abstract: A knob assembly includes a front panel, a knob located at a front panel of an appliance and configured to rotate based on operation by a user, a valve shaft that is coupled to the knob and that extends through the front panel, a valve connected to the valve shaft and configured to control supply of gas to the appliance, and a knob sensor configured to detect a rotational position of the valve shaft. The valve shaft is configured to control the valve to adjust a flow rate of gas based on rotation of the valve shaft.

Abstract: A system for transferring LP gas includes an inlet port configured for connection to a single connection port of a first tank. The inlet port is configured to receive liquid phase LP gas, vapor phase LP gas, or a combination of both from the first tank. An outlet port is configured for connection to a single connection port of a second tank. The outlet port is configured to deliver the liquid phase LP gas, vapor phase LP gas, or combination of both to the second tank. A pump coupled between the inlet port via a first conduit and the outlet port via a second conduit is operable to pump the liquid phase LP gas, vapor phase LP gas, or combination of both from the first tank via the inlet port to the second tank via the outlet port through the first and second conduits.

Abstract: A microfluidic valve comprises a first reservoir, a second reservoir, an inertial pump and a channel connecting the first reservoir to the second reservoir. The second reservoir is to receive fluid from the first reservoir through the channel under a pressure gradient. The inertial pump is within the channel proximate the second reservoir and distant the first reservoir.

Abstract: A drain valve comprising a body, an inlet for fluid to enter the drain valve, an outlet for fluid to exit the drain valve, a piston member having a piston head and a piston shaft, a seat against which the piston head seats in a closed condition of the drain valve, and a rotatable member that is rotatable relative to the body. The rotatable member is rotatably retained with the piston shaft, such that rotation of the rotatable member in one direction causes the piston member to move in a first linear direction away from the inlet such that the valve head is unseated from the seat to open the drain valve and, in use, allow fluid to enter the drain valve via the inlet and discharge via the outlet. Rotation of the rotatable member in the opposite direction causes the piston member to move in a second linear direction toward the inlet to seat the valve head on the valve seat to close the drain valve and, in use, prevent fluid from entering the drain valve via the inlet.

Abstract: The present invention intends to make it hard to distort a diaphragm at the time of assembling in a fluid control valve structured to screw a screw member to a plunger. The fluid control valve that makes an actuator move a valve body installed movably in a contacting/separating direction with respect to a valve seat includes: the plunger that is interposed between the valve body and the actuator to transfer the power of the actuator to the valve body; and the diaphragm connected to the circumferential surface of the plunger. In addition, the plunger includes: a first division body connected to the diaphragm; and a second division body that is arranged on an actuator side of the first division body and to which the screw member is screwed. Further, the second division body is configured to be rotatable with respect to the first division body in its circumferential direction.

Abstract: A fuel supply valve configured to supply fuel from a fuel tank to a stack is provided. The fuel supply valve includes a plunger that has a hollow portion and a housing having with a cavity in which the plunger is configured to move. Additionally, a contact member is disposed between the housing and the plunger to be in contact both with one side of the housing and with one side of the plunger, the contact member maintaining airtightness between the housing and the plunger.

Abstract: A shut-off member for a fluid valve is proposed. The shut-off member includes a blind hole that is made in the shut-off member, the blind hole leading from a dorsal side into a ventral portion; an electronic data carrier which is arranged in a base region of the blind hole; and a casting compound that is introduced into the blind hole and that fixes the electronic data carrier to the shut-off member.

Abstract: A device for indicating the status of a valve includes a position indicator, wherein the position indicator includes a monitoring element, and a communication element. A method for indicating the status of at least one valve includes monitoring positions of a device enclosed by a first valve with a position indicator and communicating the positions of the device enclosed by the first valve with a communications element.

Abstract: A method for adjusting temperature and/or pressure of fuel in a pressured container system of a vehicle to a respective temperature setpoint and/or a respective pressure setpoint before a process of filling the pressurized containers includes extracting fuel from a first pressurized container having a first temperature and a first pressure, to bring the first temperature and/or the first pressure of the fuel closer to the temperature setpoint and/or to the pressure setpoint of the first pressurized container. The method also includes supplying the extracted fuel to either a fuel conversion device to power the vehicle or into a second pressurized container, where fuel in the second pressurized container has a second temperature and a second pressure, to bring the second temperature and/or the second pressure of the fuel closer to the temperature setpoint and/or to the pressure setpoint of the second pressurized container.

Abstract: A waste oil transfer system includes a system controller configured to determine the authorization status of a waste oil transfer request. The system controller requests a current fluid level in a storage tank from a tank level monitor mounted on the storage tank. The tank level monitor is configured to generate current fluid level information and provide that information to the system controller. The system controller determines the available space in the storage tank and compares the available space to the transfer volume to determine if the storage tank can receive the transfer volume. The system controller then activates a pump to initiate the transfer if the system controller determines that the transfer is authorized or denies the transfer.