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JP2024065019A |
[Problem] Liquid hydrogen (LH)2) improves the valve actuation mechanism for actuating the rotatable closing element of the valve for use with high leakage requirements. A housing (22) defining an inner region (32) sealed from an outer re...
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JP2024050912A |
An apparatus for controlling flow through a flow body (100). The device includes an inlet opening (102) and an output opening (108) of a flow body, a cavity having a first cross-sectional shape and an opening, and a diaphragm (114) or a ...
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JP7453134B2 |
To provide a flow rate control valve capable of suppressing the generation of wear even when a needle valve body partially contacts with an annular valve seat.In a needle valve controlling a flow rate of chemicals, a rod 60 is inserted w...
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JP2024512084A |
The fluid metering valve (10) includes a valve body (100) including an inlet opening (110) and an outlet opening (120). A seal ring (30) is located within the valve body and defines an opening that communicates with the inlet opening and...
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JP2024032284A |
The present invention provides a valve device that can eliminate backlash in a threaded portion with a simple configuration. [Solution] In one aspect of the present disclosure, in a waterway switching valve 1, a valve shaft 15 is provide...
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JP2024032286A |
An object of the present invention is to provide a valve device that can perform stable valve opening and closing operations. [Solution] In the waterway switching valve, the shaft part 51 of the rotor shaft 41 of the actuator is inserted...
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JP7439063B2 |
An apparatus for controlling flow through a flow body comprising an intake opening and an output opening in the flow body, a cavity with a first cross-sectional shape and an opening, a diaphragm or a bellows, wherein the diaphragm or the...
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JP2024025768A |
An object of the present invention is to substantially prevent gas leakage with a structurally simple configuration. A working flap casing providing a gas flow path and a pivot shaft 18 centered about a pivot shaft axis A in a first bear...
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JP2024025752A |
An object of the present invention is to substantially prevent gas leakage with a structurally simple configuration. An actuating flap adjustable in position between at least one open position for opening a gas flow channel to flow, the ...
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JP7421432B2 |
To provide a control valve capable of suppressing the occurrence of crack in a housing during press fitting of a cylindrical part into a shaft penetration hole.The control valve includes: a synthetic resin first housing 11 having a shaft...
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JP2023182969A |
To provide a valve device capable of suppressing of leakage of a fluid from a seal member.In a valve device 1, a double lip seal 51 includes: a flow passage-side seal portion 61 disposed at a side of a housing chamber 11a of a housing 11...
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JP2023182970A |
To provide a valve device capable of reducing seating sound of a valve element.A solenoid valve 1 has a seal structure portion 18 disposed between a housing 12 and a shaft 15, and the seal structure portion 18 includes a main lip seal 18...
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JP7403752B2 |
To provide a shaft seal structure capable of maintaining excellent sealability over a long term without simultaneously progressing wear of a plurality of V-packings or U-packings.A shaft seal structure 12 has a plurality of V-packings 14...
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JP7400622B2 |
A valve device includes: a housing; a valve element; a rotatable shaft that rotates the valve element; a seal member that is slidably in close contact with an outer peripheral surface of the rotatable shaft to limit penetration of gas th...
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JP7382679B2 |
Provided is a valve with which a seal member is not damaged when pressure accumulated near the seal member is released. This valve includes a valve box having a valve chamber, a valve seat provided in the valve chamber and having a seat ...
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JP7377009B2 |
To provide a pinch valve which prevents a fluid in a pipe body from flowing to the outside of the pinch valve even if the pipe body is ruptured.A pinch valve 1 includes: a valve part 2; a pipe body 3 which is formed with a passage locate...
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JP7347961B2 |
To provide a valve mechanism, and a repair method of the valve mechanism capable of repairing the valve mechanism without removing a drive portion.A valve mechanism includes a valve casing having a flow channel, a valve element for openi...
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JP7348200B2 |
A metallic sealing assembly between a rotating shaft and a fixed frame comprises: a flexible metallic seal having two tori, inner and outer, that are concentric and of different average diameters, comprising a metal envelope which encase...
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JP7333045B2 |
To provide a flow control valve capable of relatively easily and inexpensively forming a pressure equalization passage communicating between a valve port and a back pressure chamber, without restrictions on the tip shape of a valve body....
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JP7328775B2 |
The present invention relates to a diaphragm valve that has a simple configuration, and effectively prevents the generation and deposition of reaction products in a valve body seal part to suppress biting when the valve is closed, thereb...
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JP7324018B2 |
To provide a weld structure which can improve weld durability while preventing a weld crack when a valve body in a valve device is welded with a diaphragm.A diaphragm valve 10 is provided with: a valve body 13 which is provided in a valv...
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JP2023110250A |
To provide a shaft seal device having a gland seal structure which can prevent leakage of a fluid (a gas) without performing additional tightening even if a gland packing is worn.A shaft seal device 1 according to the invention causes a ...
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JP7316010B2 |
A valve sealing structure for reducing the abrasion, and a method therefor, relating to the field of valves. The sealing structure comprises: an upper loading sealing device, a lower loading sealing device, and a drive device. The upper ...
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JP7310778B2 |
A valve device includes: a seal member that is slidably in close contact with an outer peripheral surface of a rotation shaft; and an annular attachment ring that attaches the seal member to a housing. The seal member has a first-side pl...
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JP2023098217A |
To provide a valve that has a long neck structure suitable for an ultra-low temperature fluid, which opens/closes a channel by lifting/lowering of a valve body, can be simply installed while accurately centering a stem, is provided with ...
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JP2023091305A |
To provide a gate valve for allowing the replacement of an O-ring which seals a space from a shaft portion located on the opposite side to a valve chest of a flange part of a valve rod, while being put in a water feeding state.A gate val...
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JP7293540B2 |
To provide a valve with which liquid is not flown into an actuator.A valve comprises: a cylindrical protrusion part 94 protruding outward from a valve body 4; a VC motor 8 that expands and contracts a sliding shaft; a coupling body 6 tha...
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JP7281879B2 |
To provide a globe valve or a bellows valve which can be used as a whole in common as the globe valve or the bellows valve, can improve a flow rate adjustment function by securing a flow rate characteristic by increasing a lift amount of...
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JP7281175B2 |
To provide a valve that has a stem with a valve element and can suppress leakage of a fluid along the axis of the stem.A valve 1 includes a valve body 2 having a fluid inflow passage 23, an outflow passage 24 and a valve seat 25 formed b...
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JP7242582B2 |
A butterfly valve includes a drive unit and a valve unit that are coupled to each other. The drive unit includes a hollow part in which a rod is inserted between a DD motor and an end portion of the drive unit on a coupling side to the v...
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JP7240185B2 |
To provide a control valve which enables dimensional control of a through hole, to which a seal member is fitted to be held, to be performed easily.In a control valve CV according to the invention, a recessed part 612, recessed in a radi...
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JP7191035B2 |
The present invention provides a valve in which a backseat structure is formed at a height for easily preventing penetration of the fluid with high accuracy from outside a bonnet to reliably inhibit an increase in internal pressure. In a...
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JP7186336B1 |
The valve device 100 includes a casing 1 in which a through hole 18 coaxial with a predetermined axis X is formed and through which fluid flows, an operating portion 6 extending coaxially with the axis X and passing through the through h...
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JP2022181298A |
To provide a valve device which enables easy attachment of a packing which is a consumable component.A valve device 1 opens or closes an internal passage 23 between a fluid inflow passage 21 and an outflow passage 22 to control flow of a...
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JP7178775B2 |
To make an electromagnetic three-way selector valve of a pressure balance type excellent in durability without complicating a structure and without inviting reduction of response speed.A pressure receiving area where a diaphragm 60 recei...
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JP7174799B2 |
A butterfly valve includes a purge gas flow path supplying a purge gas for preventing inflow of a control fluid into a magnetic fluid sealing portion from a flow path through an insertion hole. The purge gas flow path is provided with an...
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JP7169095B2 |
A diaphragm valve (20) includes a solenoid body (26) having a coil and a pole piece. An armature is configured to slide in the solenoid body (26) along a longitudinal axis between energized and de-energized positions. A valve body cartri...
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JP2022167201A |
To provide a valve which prevents ingress of a coating liquid from a slide shaft of an actuator into the actuator, and to provide an intermittent coating device using the valve.A seal body 70 seals a gap between a first slide shaft 30, c...
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JP2022166345A |
To provide a water leakage prevention tool, a water leakage prevention method, a construction method of the water leakage prevention tool, and a valve capable of performing repair of the valve due to water leakage from a shaft seal fixin...
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JP7162137B2 |
This application provides a valve member that includes a diaphragm portion and a valve head attachable to the diaphragm portion. The valve head includes an engagement portion configured to engage with a valve seat defined in the valve. T...
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JP7158006B2 |
To provide a valve which does not use lubricant for securing sealing property in a stem shaft direction.In a valve 1 including a valve body 2 having a passage, a valve element 3 abutting on a valve seat 25 formed on the valve body 2 to o...
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JP7091105B2 |
To inhibit autorotation of a spindle.A pressure chamber S is provided between a housing 20 and a spindle 30. The spindle 30 includes: a communication passage 31 allowing communication between an inflow port and an outflow port; and a scr...
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JP7089037B2 |
Unloader for a compressor, said unloader (1) comprising a housing (2) with an inlet (3) and an outlet (4), and whereby the unloader (1) is further provided with a piston rod (5) which is arranged moveably in a reciprocating manner in the...
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JP2022068406A |
To prevent a valve element of a poppet type fluid control valve functioning as an internally opening type valve from being opened carelessly due to high negative pressure applied to a downstream side flow passage when the valve is fully ...
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JP7054502B2 |
Provided is a valve with built-in heater, which is capable of reducing the liquefaction and vapor deposition of the gas passing through the valve in comparison with a conventional valve with built-in heater. The valve 1 with built-in hea...
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JP7032247B2 |
To provide a gland packing installation structure of a valve which enables improvement of workability during replacement of a gland packing.A gland packing installation structure of a valve includes: a valve shaft 4; and a valve lid 2 ha...
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JP7013105B2 |
A butterfly valve that is capable of reducing torque and improves sealing performance. The butterfly valve 10 includes a shaft member 100, a tabular valve body that is provided on the shaft member 100, a case 310 that is attachable to an...
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JP2022003281A |
To provide a bellows valve which inhibits wear of a bellows, achieves excellent durability, and enables mass production at low costs, and to provide a manufacturing method of the bellows valve.A valve body 21 provided in a valve casing 1...
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JP2021188615A |
To eliminate the accumulation of EGR gas and condensate water in a space between a housing, a bearing, and a seal member while securing a seal function of a seal member.An EGR valve 1 is equipped with a housing 3 that includes a channel ...
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JP6978927B2 |
To prevent a defect in which a liquid is retained in a vicinity of a valley of a bellows part and particles such as impurities are accumulated. Provided is a valve (100) including a valve element part (20) and a diaphragm part (50) that ...
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