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 plural component dispensing system 10 receives separate fluid components, mixes the components in a predetermined ratio, and dispenses the components as mixture. Each fluid component is supplied by a separate pump 12A, 12B to an individual variably controllable fluid regulator 14A, 14B. Each fluid component is supplied from its individual fluid regulator 14A, 14B through a flow meter 18A, 18B to a mixing device 20. The ratio of the components delivered to the mixing device 20 is controlled by the individual fluid regulators 14A, 14B based upon the flow rates measured by the flow meters 18A, 18B.

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 processing chamber is described having a gas evacuation flow path from the center to the edge of the chamber. Purge gas is introduced at an opening around a support shaft that supports a heater plate. A shaft wall around the opening directs the purge gas along the support shaft to an evacuation plenum. Gas flows from the evacuation plenum through an opening in a second plate near the shaft wall and along the chamber bottom to an opening coupled to a vacuum source. Purge gas is also directed to the slit valve.

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 valve operating device includes a mounting for attachment to a vehicle and an elongate arm, the free end of which is only moveable across the underlying ground. The joints of the arm pivot around vertical axes and the arm is locked into a desired orientation by a brake at each joint. A valve turning machine is at the free end of the arm. The brakes are engaged and released by a control on the valve turning machine.

Abstract: The valve, notably for a combustion system, is comprised of a valve body, at least a first fluid inlet pipe, at least one outlet pipe for the fluid arranged on the valve body, a shutter mounted movably within the valve body and capable of ensuring fluid communication between the pipes, and an actuating device of the shutter mounted within the valve body and capable of being controlled electrically. The valve also contains a cooling circuit arranged within the valve body and surrounding at least part of the actuating device, at least one cooling fluid inlet pipe, and at least one outlet pipe for the fluid arranged on the valve body and in fluid communication with the cooling circuit.

Abstract: The presently-disclosed subject matter includes valve covers. The valve covers can protect valves from exposure as well as from tampering. In some embodiments the valve cover comprises a cap that includes a top end and a side wall that is substantially cylindrical. Embodiments of valve covers also include a plug on an interior side of the top end of the cap that projects toward the opening of the cap. When the valve cover is installed, the plug can extend beyond an opening of the valve.

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: Provided is a flow rate ratio control device that even in change periods during which the actual flow rates of component gases change along with a change in the target total flow rate or target mixing ratio of mixed gas, can keep the actual total flow rate or actual mixing ratio of the mixed gas constant. Target flow rates set in flow rate control devices have continuous change periods during which target flow rate values continuously change from pre-change to post-change target flow rate values, respectively and correspondingly; and the time lengths of the continuous change periods are set to at least a followable time during which a flow rate control device of which a response speed to an actual component fluid flow rate is lowest allows the actual component fluid flow rate to substantially follow the target flow rate in the continuous change periods.

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 gas control system includes: a first valve that is provided in a carrier gas line or in a gas supply line; a flow rate control mechanism that is provided in a diluent gas line and includes a flow rate sensor and a second valve; a contactless type first concentration sensor; a first valve control part; a diluent gas setting flow rate calculation part adapted to, on the basis of a preset setting total flow rate of a post-dilution mixed gas and a post-dilution measured concentration, calculate a diluent gas setting flow rate that is a flow rate of a diluent gas to be flowed through the diluent gas line; and a second valve control part adapted to control the opening level of the second valve so as to decrease the deviation between the diluent gas setting flow rate and a measured flow rate measured by the flow rate sensor.

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 six-way directional valve (100) is provided, including: a valve body (1), defining a valve cavity (4) therein, and provided with a first connecting pipe to a sixth connecting pipe (11-16); a valve spool (2), movably disposed in the valve cavity (4), two valve chambers (3) being defined between two moving ends of the valve spool (2) and an inner circumferential wall of the valve cavity (4), so that the valve spool (2) being allowed to be driven to move by a pressure difference between the two valve chambers (3), a first chamber (21) and a second chamber (22) being defined between the valve spool (2) and a same side wall of the valve cavity (4), a third chamber (23) being defined between the valve spool (2) and the inner circumferential wall of the valve cavity (4); and a pilot valve assembly (5).

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.

Abstract: An underwater assembly includes a flow control device and an actuator coupled to the flow control device, where the actuator is configured to actuate the flow control device. The underwater assembly further includes an insulated housing surrounding the flow control device and the actuator, where the insulated housing is configured to retain heat. The underwater assembly also includes a thermal control system comprising a heat exchanger configured to control a temperature of the actuator.

Abstract: Example apparatus for regulator heat transfer are disclosed. An example apparatus includes a housing including an inlet, an outlet, a first valve, and a stem disposed therein. The example apparatus includes a vortex generator disposed in the housing. A fluid is to flow from the inlet through the vortex generator. The example apparatus includes a second valve disposed in the vortex generator. In the example apparatus, the vortex generator is to generate heat prior to the fluid flowing through the second valve to the outlet. The stem is to control the first valve and the second valve to regulate an amount of the heat conveyed to the first valve.

Abstract: Apparatus for equipartition of the flow between a first line (1) for feeding gas and a second line (2) for feeding gas, in a pressure adjusting system, comprising a first control unit (8) of a first adjusting device (4) for adjusting the pressure of the first line (1) to a first predetermined pressure (P1), a second control unlit (19) of a second adjusting device (6) for adjusting the pressure of the second line (2) to a second predetermined pressure (P2), a pneumatic conduit (19) for connecting between the first control unit (8) and the second adjusting device (6) for adjusting the pressure of the second line (2) to the first predetermined pressure (P1), and a pneumatic switch (20) for interrupting the pneumatic connection for adjusting the pressure of the second line (2) to the second predetermined pressure (P2).

Abstract: A hydraulic valve includes a valve body having first and second ends, a bore extending therebetween, and first and second drain passages opening to the bore; a spool disposed in the bore and biased in a neutral position, the spool having first and second ends and first and second annuli axially spaced from the first and second ends respectively, whereby when the spool is in the neutral position, the first and second drain passages are connected to first and second bores respectively via the respective annulus, and wherein the spool is axially movable relative to the body by fluid acting on one of the ends to block fluid flow from the first and second bores to the first and second drain passages.

Abstract: The invention is an insulated faucet cover for insulating a faucet. The insulated faucet cover has an insulative block and an internal cavity. The internal cavity has a single opening on a front side of the insulative block and is sized to fit over a faucet. The internal cavity has a plurality of internal surfaces which contact the faucet to firmly hold the insulated faucet cover in place over the faucet.