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JP5078893B2 |
A packing nut assembly for a control valve having a valve body and a valve stem includes a packing box arranged for operative coupling to the valve body and having a primary bore sized to receive the valve stem and first and second count...
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JP5066724B2 |
The high vacuum valve includes a valve housing having a valve flow channel provided in an interior thereof, two ports connected to the valve housing so as to be arranged perpendicular relative to each other, and capable of being communic...
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JP5053174B2 |
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JP5007858B2 |
In a flow amount control valve, a rod is inserted through the interior of a housing, and first and second connecting members are connected coaxially to both ends of the rod. A first bellows and a second bellows, each having a bellows por...
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JP5001125B2 |
Disclosed is a leakage diagnosing device comprising a positioner (2) having fluid-leakage diagnosing unit (2-3). This fluid-leakage diagnosing unit (2-3) sends a drive command to an opening control unit (2-1), thereby to reciprocate a va...
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JP5001754B2 |
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JP4987953B2 |
To prevent formation of a gap between the upper surface of a packing gland (21) and the lower surface of a yoke sleeve (26) even when the packing gland is lowered. A valve stem (12) is journaled in a journaling portion of a valve box in ...
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JP4987097B2 |
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JP4975015B2 |
Split packing followers for use with valves are disclosed. A disclosed packing follower includes a first member having a first portion of a flange and a first portion of a curved wall extending substantially perpendiculary from the first...
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JP4974691B2 |
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JP4958350B2 |
To provide a novel gland packing and a sealing apparatus comprising this, wherein the gland packing displays high and stable sealability for a stem and an inner wall surface of a stuffing box even for uses further requesting the movabili...
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JP2012097592A |
To prevent a stick of a valve rod caused by the followings: a difference of linear expansion coefficients between a guide member and a bush of a steam valve device causes an oxide scale S to be laminated between the guide and the bush; t...
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JP4899130B2 |
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JP4896658B2 |
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JP4879353B2 |
In an exhaust gas recirculation valve device, a sealing member 15 supported by a plug 15c is disposed between a portion of a housing 1 on an exhaust gas passage side of a bearing 8, and a valve shaft 7.
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JP4850617B2 |
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JP4851056B2 |
A valve assembly including a body having an inlet port, an outlet port, and a valve seat having a passageway. An electrical solenoid assembly moves a valve member upon being energized to control fluid flow between the inlet and the outle...
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JP2011243217A |
To provide a technique for increasing a degree of freedom of design of a vacuum control valve having a shutoff function.This invention provides the vacuum control valve 30 which is connected between a vacuum vessel and a vacuum pump and ...
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JP4807554B2 |
To provide an opening and closing valve with a flow channel capable of surely preventing loosening of a bush screwed on a valve main body, and preventing protrusion of the bush even when fluid pressure is rapidly applied. In this opening...
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JP4791547B2 |
A shaft seal packing exhibits high sealability at the time of initial assembly and also exhibits, even after the packing is retightened, excellent sealability by an increased seal surface pressure obtained through an effect of pressing a...
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JP4721560B2 |
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JP4721863B2 |
A valve device includes: a valve stem 4 vertically movably inserted in a staffing box 1; a gland packing 2 interposed between the staffing box 1 and the valve stem 4; a packing flange 9 disposed above the gland packing 2 through a packin...
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JP4719733B2 |
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JP2011127653A |
To prevent formation of a gap between the upper surface of a packing gland and the lower surface of a yoke sleeve even when the packing gland is lowered.A valve stem 12 is journaled in a journaling portion 8 of a valve box in an upwardly...
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JP4712738B2 |
To obtain sealing performance by a seal member without depending only on gas pressure in a shaft seal retaining ring used for a valve that slidably supports a shaft integral with a valve element 3 and includes a shaft slide supporting pa...
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JP4698795B2 |
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JPWO2009093608A1 |
Provided is a highly clean high temperature valve capable of improving versatility for a usage environment as a valve device. The valve drive unit 30 and the valve box 40 are connected to the bonnet 20 that slidably supports the valve sh...
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JP2011085185A |
To provide a steam valve device for reducing a steam amount leaking from a clearance between a valve rod and a bush, and to provide steam turbine power generation facilities equipped therewith.The steam valve device 10 includes a steam v...
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JP2011069450A |
To provide a valve device capable of enhancing the seating performance of its valve element to the valve seat even in case a pressure fluid of comparatively high pressure and large rate of flow is introduced into a pressure chamber.The v...
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JP2011033074A |
To sufficiently enhance pressure resistance and durability while securing flexibility required for a diaphragm.A diaphragm valve keeps a pressure receiving surface 24a in a valve chest 19 so as to face the valve chest 19 and contains a d...
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JP4632162B2 |
A structure of a fluid passage output port of a fluid-operated apparatus comprises a first valve body (18) composed of a resin material and formed with a fluid passage (16) for allowing a fluid to flow therethrough; and a fluid passage o...
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JP4629829B2 |
A valve (1) for use with an ultra high purity gas comprising a valve body (7) defining a valve chamber (15) having a valve outlet (5) through which gas is discharged and containing a reciprocable sealing member (9), characterised in that...
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JP4619337B2 |
An actuator composed of a step motor and a cam mechanism is finely adjusted vertically so as to perform zero-point adjustment of a valve easily and readily. In a step motor driven cam valve 1 a stem 7 is disposed to freely ascend and des...
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JP4620621B2 |
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JP4602744B2 |
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JP2010261591A |
To adjust the amount of fuel with sufficient accuracy regardless of a change in pressure applied state. A flexible separation wall 28, which is gas-tightly positioned and fixed to a closing body 16 and a valve housing 11, gas-tightly sep...
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JP4581309B2 |
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JP4567398B2 |
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JP4560290B2 |
An improved seal arrangement in an assembly such as a valve assembly in which a compression member is provided to press a seal between the compression member and the valve body. In a preferred form, the compression member includes a rece...
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JP4545473B2 |
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JP4521705B2 |
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JP4522833B2 |
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JP4515906B2 |
A shut-off instrument for a flow medium, in particular a slide valve instrument designed for pressurization on both sides with an instrument housing forming a flow channel and a slide valve chamber and with a soft-sealing shut-off elemen...
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JP4508460B2 |
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JP4505405B2 |
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JP4503201B2 |
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JP4478922B2 |
The present invention relates to a duct connector for working fluid, that is durable and corrosion resistant, and a valve with the duct connector. The duct connector has a head portion with an internal fitting portion that fluidly commun...
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JP2010121689A |
To provide a diaphragm valve capable of further suppressing an electrostatic breakdown of a diaphragm 21.An electric conductor film 25 such as carbon is formed, for example, in a spiral shape having no adverse influence on the movement o...
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JP2010121341A |
To provide a cut-off shaft which prevents the occurrence of water leakage and which holds smooth slidability.This cut-off shaft 5, which is slidably constituted through a guide 6 formed in the upper portion of a water storage tank 2, ope...
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JP2010090964A |
To provide a rotary valve which has high permeability, and hardly causes an operation failure even when used for a specific fluid such that it is hardened by contact with air.The rotary valve 20 includes a housing 11; a stem 1 inserted i...
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