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JP3779658B2 |
To discriminate seal performance of gland packing even in the middle of the operation of a control valve by detecting an axial load or the like acting on a valve shaft. The gland packing 23 to seal between a lid part 5A of a support fram...
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JP3768304B2 |
To provide a valve for refrigerant equipment that can reduce flow resistance of a fluid at the time of opening a passage without the risk of the fluid leaking at the time of closing the passage. A valve for refrigerant equipment is provi...
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JP3758934B2 |
To provide a two-port valve to prevent sticking of a foreign matter to a valve element and a valve shaft and the occurrence of residence thereof even when the valve is used in a line for fluid mixed with a foreign matter, such as dust, e...
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JP3757793B2 |
To provide an opening/closing valve for high pressure fluid reducing the abrasion of a seal mechanism of a valve element. The opening/closing valve is provided with a valve body 2 provided with a fluid inlet passage 6, a fluid outlet pas...
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JP3756135B2 |
To provide a novel diaphragm valve structure hardly giving an abrupt pressure change to a fluid, suppressing the occurrence of cavitation and allowing smooth distribution of the fluid. A valve chest 20 is formed into an approximately fun...
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JP3745427B2 |
To miniaturize a slow exhaust valve by reducing the length in the axial direction of the slow exhaust valve having the function to rapidly/slowly evacuate a vacuum chamber. In a slow exhaust valve provided with a sub valve mechanism 8 in...
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JP2006504042A |
The present invention is directed to a housing flange unit which includes a housing flange wherein a butterfly valve shaft is rotatably mounted in a perpendicular position in relation to the longitudinal axis of the housing flange and in...
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JP3730692B2 |
To provide a plug valve in which in the case of excessive purging a guide tube, a guide line, a stem, a stem tube and the like are not eroded, and in the case of insufficient purging a valve stem or the stem tube does not cause sticking....
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JP2005351309A |
To provide a valve body capable of preventing a seat part from being deformed by a stress produced by uneven tightening and completely closable in a closed state, and a valve having the valve body.This body 12 of the valve 10 formed of a...
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JP3720429B2 |
To provide a sealing device which can surely seal fluid and working spaces and be manufactured and assembled in a simple method efficient in cost. This sealing device for an actuator movably mounted in a housing 2, in particular a valve ...
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JP3719566B2 |
To provide a solenoid valve which can make a prescribed flow rate even when current carrying is stopped due to a wire break or the like in a coil part. By balance between energizing force of a coil spring 28 acting in a direction separat...
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JP3715161B2 |
To suppress leak of exhaust gas to almost '0' throughout a long period as working reliability of a valve shaft is ensured through simple structure, in an exhaust gas valve device for an engine formed such that a valve shaft is rotatably ...
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JP2005299836A |
To solve the problem that in a conventional flow regulating valve, a seal member attached to a valve stem has the fault of a short life due to the wear in the rotational direction and the reciprocating direction caused by the rotational ...
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JP2005291286A |
To provide a waterproofing structure in a gas plug having high close adhesion force and capable of preventing reduction of close adhesion force with age without affecting rotation torque of a handle.A waterproofing packing mounting part ...
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JP2005531729A |
A rotary actuator for a valve includes a cam mechanism for transmitting opening force to a movable valve member to move the valve member off a valve seat, against the bias of a closing spring. The cam mechanism does not transmit spring f...
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JP2005291129A |
To provide a butterfly valve 1 provided with good sealability as compared with a conventional one.A bearing 4 is press-fitted in a through hole 2B in a radial direction of a housing 2 and a seal means 6 is energized toward the bearing 4 ...
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JP2005273555A |
To provide a seal structure of a valve shaft of a pressure control valve which ensures the sealing performance, improves the pressure regulation characteristic, enhances the pressure regulating reliability or the pressure regulation perf...
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JP3703971B2 |
To improve the preventive effect of leak from a valve body by installing a valve stem, provided with a valve plug at both vertical ends, in a poppet assembly to be installed in the valve body, and a plurality of diaphragms in regard to t...
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JP2005265074A |
To provide a fluid control valve provided with a structure reducing corrosion by fluid and preventing damage due to temperature.The fluid control valve 2 controlling flow rate of lead bismuth W flowing in a pipe 1 is provided with bellow...
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JP3701367B2 |
To improve durability of a diaphragm valve for constituting a poppet valve. A poppet valve is provided with a diaphragm valve 50 provided inside a bonnet 28 so as to be freely displaced, and for opening and closing a communication passag...
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JP2005528561A |
A modular, actuated valve controlled by means of pressure fluids comprising a head plate mounted on a housing plate mounted on a base plate, held together by screws, having a piston with attached valve spindle and a pressure relief space...
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JP2005249200A |
To further improve a design of an assembly by conventional technology to successfully eliminate various defects of the conventional technology.This two-piece valve shaft seal assembly has first and second generally cylindrical shells, on...
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JP2005195068A |
To provide a flow control valve, capable of securing seal performance without using lubricant.In this flow control valve 10, a bellofram (seal diaphragm) 50 is provided between a power mechanism and a needle part 35, and the bellofram 50...
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JP3672820B2 |
To improve the durability of a diaphragm, increase the attracting action of a coil, and improve high-speed responsiveness by reducing the load applied to the root section of the diaphragm opening or closing a fluid passage. A solenoid va...
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JP3672814B2 |
To provide a valve device capable of inexpensively achieving the sealing performance sufficiently endurable to the actual use by improving a contact structure at an operating end side, of a valve rod. A predetermined thickness d between ...
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JP2005163982A |
To provide a valve for chemical solution for preventing dripping and suction of chemical solution generated by a change in the internal volume of the valve, and preventing deterioration of the movable section of a valve element in the va...
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JP3663463B2 |
A valve assembly has a unitary teflon valve housing with six peripheral facets. A recessed area on the surface of each facet forms a valve seat. Pairs of fluid channels formed in the housing each terminate at openings at a central, plana...
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JP3662923B2 |
An apparatus for inoculating a sample to or withdrawing a sample from a vessel or conduit includes a body with an internal sample cavity, a valve operating rod movable to open and close an orifice to the sample cavity a coupler to attach...
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JP2005155895A |
To provide a diaphragm valve capable of reducing the load in bringing a diaphragm valve element into contact with a valve seat and preventing water hammer.In this diaphragm valve 1 wherein an air-tight space is formed on an opening part ...
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JP2005157676A |
To provide a flow control valve that can stably move a valve rod back and forth while maintaining appropriate sealing performance irrespective of a use environment and can improve a product life, and a fuel cell system having the same.Th...
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JP2005515050A |
The shower pipe comprises a flexible hose ( 2 ) connected to a two-way valve, which (comprises a body ( 3 ) inside which is accommodated a portion of a core ( 4 ) through which passes a longitudinal water passage ( 6 ). The valve compris...
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JP2005090639A |
To provide a valve for chemical solution enabling an increase in sealability and preventing air bubbles from stagnating therein.This valve is installed in a flow passage for flowing a fluid, and operates a diaphragm valve element 15 to b...
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JPWO2003044397A1 |
A valve body in which a shaft portion 20 is concentrically provided in a pressure opening 10 provided in a sealing plate 3 sealed in an opening of a capacitor or battery case, and is tightly fitted and fixed in the pressure opening 10. 3...
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JP3619032B2 |
To obtain the vacuum pressure controller which can accurately maintain low-vacuum pressure close to that of the atmosphere. This controller has a vacuum proportional opening/closing valve which varies the vacuum pressure in a vacuum cont...
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JP2005030459A |
To provide a vacuum exhaust valve capable of preventing the deterioration of a seal member as small as possible even in a gaseos atmosphere excited by plasma in a vacuum chamber.In this vacuum exhaust valve 1 having a chamber port 3 conn...
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JP2005016729A |
To provide a vacuum control valve capable of being easily and economically manufactured, to achieve the symmetric flow both in a completely opened state and a partially opened state.A supporting unit 13 displaceably supporting a closing ...
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JP3604086B2 |
To prevent external leakage from a valve heretofore generated by installing the valve and to attain miniaturization through unification by forming flange structure for connecting a valve casing and a valve cover into an integral type or ...
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JP2004353716A |
To secure the sufficient sealing function even in receiving the thrust load and to reduce the frictional resistance in opening and closing a valve in a shaft sealing structure of a valve wherein a surface of a valve element is coated wit...
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JP2004353695A |
To provide a sealing means 11 of low manufacturing cost and high sealing performance.An annular recessed part 9 is formed by an end face 4A at an inner side of a bearing 4 and a through hole 2A adjacent thereto, by press fitting the cyli...
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JP2004346949A |
To minimize force required for opening-closing operation, while maintaining sealability equal to a conventional gas cock having fire resistant packing.This gas cock has a metallic valve casing 1, a metallic valve element 26 of a ball str...
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JP3599427B2 |
To secure prescribed sealing performance and surely prevent leakage between a valve rod and a shaft seal member without affected by an inclined attitude of the valve rod. A ring projecting part 20d pressed against an outer circumferentia...
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JP2004332797A |
To provide an aseptic valve in which the passage in piping can be controlled to intercept and pass without transmitting torsion force of a valve shaft for driving a bellows to the bellows, and the durability can be improved by preventing...
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JP3588198B2 |
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JP2004308762A |
To provide a motor-operated valve capable of preventing the jumping-out of a valve element from a valve main body when a motor assembly (driving part) is demounted.This motor-operated valve 100 comprises the motor assembly 1, the valve e...
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JP2004301318A |
To provide a high temperature/high pressure gas direction switching valve light in weight capable of reliably switching high temperature/high pressure gas.In the high temperature/high pressure gas direction switching valve, by the inflow...
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JP2004286162A |
To prevent easily the water leakage from a packing member at a bearing section with the valve spindle in a valve casing without cutting off the water in the pipeline.A preventive device of water leakage of a gate valve etc., is equipped ...
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JP3576058B2 |
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JP2004232831A |
To provide a shaft sealing structure of a butterfly valve dispensing with a bearing, and pressing a seal ring to a waterproof face of a valve element.In this butterfly valve, a valve element 3 rotating around a shaft center of a valve ro...
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JP2004225866A |
To give a longer service life to a packing for sealing between a through-hole of a body and a needle.A high pressure chamber 13 is provided in the body 12 for introducing high pressure fluid, and an inlet port 14 and an outlet port 15 ar...
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JP2004225686A |
To provide a metering device, and a seal element and a valve needle used in the metering device, which can be manufactured more easily and more economically.The valve needle 5, 6 having a valve needle shaft 5 penetrates a chamber contain...
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