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JP2003307370A |
To provide a valve device causing no electrochemical corrosion and having superior anticorrosion performance and sufficient durability as the valve device used for refrigerating cycle equipment using ammonia refrigerant.A valve housing 1...
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JP3459971B2 |
To measure the composition of the isotope of oxygen or hydrogen contained in an aqueous sample housed in a vial by a method wherein a hole which is opened by inserting a gas sampling means and which is closed by pulling it out is formed ...
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JP3458849B2 |
To improve the corrosion resistance and wear resistance of a cobalt- based alloy part in a joined structure of a cobalt-based alloy. In the joined structure of a cobalt-based alloy, a cobalt-based alloy layer 1 where granular or aggregat...
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JP3449878B2 |
To obtain a combination of two mutually sliding members which is used in a hot water-cold water mixing tap, enables hot water and cold water to be mixed smoothly by using an operating lever, and is excellent in smooth sliding and durabil...
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JP2003240149A |
To prevent crack failure of an elastic seat used in a valve part caused by deformation by circulation of high-pressure gas, in a solenoid valve used, in particular, to control the circulation of high-pressure gas.A valve element 9 made o...
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JP2003227578A |
To provide a solenoid feed water valve suppressing increase of time required until closing the valve due to vibrations of a diaphragm type valve element occurring at the time of closing the valve.This solenoid feed water valve comprises:...
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JP2003214546A |
To provide a manufacturing method of a spool which improves abrasion resistance of the spool to be manufactured.The spool cut in a cutting process 1 is polished in a polish process 2 and soaked in an electrolytic solution to be given ano...
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JP3430409B2 |
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JP2003207059A |
To provide a valve having superior wear resistance and seizure resistance without containing cobalt.Valve seats 4, 5 of a valve element 2 and a valve box 3 are formed of a nickel group alloy in which small-size silicide particles or boro...
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JP3428405B2 |
To provide a butterfly valve which can decrease consumption of a purge gas, prevent intrusion of foreign matter into a bearing device to a satisfactory degree, and can prolong the lifetime of the sliding part in bearing device. A bearing...
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JP2003194241A |
To provide a three-way valve having a small fluid resistance, easy to set a flow characteristic, making the valve element opening/closing force small, and nevertheless capable of promoting a smaller size of the valve element and valve bo...
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JP3418368B2 |
To provide a spool valve that permits the manufacture even of a thin-walled collar and is fitted with a lightweight collar with a high material yield. The spool valve 5 is so constructed that a plurality of collars 4 with an annular void...
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JP2003519339A |
An improved, air tight valve seat for a pneumatic brake system is achieved by using a plastic valve seat that is coined by the valve member. The valve member is a harder material, for example metal, than the thermo-plastic valve seat. Th...
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JP2003166660A |
To prevent corrosion and permeation of gas in an gas contact part and to suppress enlargement in dimensions and an increase of cost.In this fluid control valve, the gas contact part 16 made of metal is fluororesin-coated by performing el...
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JP2003166655A |
To provide a poppet type valve seal mechanism causing no coming off of a seal member from a groove and no metal touch.In this mechanism, the groove 15 attached with the seal member 17 thereto is formed in such a manner that a width of an...
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JP2003130228A |
To provide a matching type toroidal gasket for a ball valve eliminating the risk of falling of a gasket by innovative combination and parts arrangement.This gasket is constituted of a support 2 made of P.T.F.E and a gasket made of elasto...
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JP2003513208A |
A high pressure valve for oxygen service comprises a valve body ( 10 ) with a gas passage ( 12 ) and a valve seat ( 18 ) associated with the gas passage ( 12 ). An obturation unit ( 22 ) is movable between a first position, wherein it is...
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JP3393715B2 |
PURPOSE: To provide a disk valve obtaining a good slide characteristic over a long period without worsening sealability further without wearing both valve elements, by forming in a slide surface a bed layer formed of soft carbon film, al...
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JP3387506B2 |
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JP3388045B2 |
PURPOSE: To provide a valve device which can secure certain valve operation for a long time even when it is arranged in a passage through which metal- corrosive liquid such as chemical passes. CONSTITUTION: In a valve device, a bag part ...
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JP2003014139A |
To provide a butterfly valve, in which a valve element peripheral portion almost simultaneously abuts on protrusions of a seat ring.By gradually varying inclination of a pressure contact surface 28 of the protrusion 26, the pressure cont...
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JP3366706B2 |
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JP2003001402A |
To maintain high quality by performing effective repair when repairing defects such as wear and cracks.When a repair material 1 is melted in a defective part 3, the repair material 4 is melted in the defective part 3 while maintaining a ...
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JP2002372162A |
To prevent freezing of water droplets condensed on a seal face and fixing of the seal face and a sheet due to freezing. The valve for gas with a perpendicularly arranged axis has the annular seal face formed on a face with a diametrally ...
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JP2002340204A |
To reduce the size by improving hot and cold water mixing performance, and uniformizing the temperature distribution and the flow speed distribution of a mixing outlet.This hot and cold water mixer is provided with a hot water side passa...
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JP2002333072A |
To provide a seat structure for a butterfly valve wherein a valve element seat face and a valve casing seat face are linearly abutted, and the sealing pressure is generated by elastic deformation of a valve casing seat.The thin cylindric...
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JP3342827B2 |
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JP3342826B2 |
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JP2002323162A |
To suppress sound vibration with the operation of a poppet type solenoid valve to be adapted in a hydraulic brake system for a vehicle which enables electronic control and simultaneously elimination of malfunctions of the solenoid valve....
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JP2002320688A |
To provide a pressure-reducing simultaneous open valve which has a check-valve function as well as an airtight sealing function.Within a valve housing 4 a primary-side chamber 5 and a secondary-side chamber 6 are separated by a partition...
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JP2002320687A |
To provide a pressure-reducing simultaneous open valve of a smaller size and a lighter weight, which improves an installation-workability to a primary- and a secondary-side piping.Within a valve housing box 4 a primary-side chamber 5 and...
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JP2002535215A |
A system is provided for contamination free delivery and control of a flowable medium contained in an enclosed flow path or a container. The system is highly scalable in size and works even with viscous fluids which are difficult to flow...
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JP3334066B2 |
PURPOSE: To prevent a plug stick phenomenon, etc., by preventing the leak of corrosive fluid by the grand seal part of a valve main body upper cover part, lowering the entire height of the valve main body and restraining a vibration. CON...
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JP2002295711A |
To improve an allowable pressure limit by an extremely simple structure without depending on the material strength of a seal member.This high pressure on-off valve device device comprises a valve body 10 pressure-welded to the end surfac...
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JP2002276833A |
To ensure a sealing property, i.e., a reverse flow preventing property, to make an operability of a valve element good, to set a flow characteristic to the optimum condition and to effectively exhibit a reverse flow prevention pressure r...
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JP2002276823A |
To provide an excellent high pressure fluid control valve hardly receiving wear, capable of substantially ignoring a leakage of an internal operation fluid and contributing to a long life of the fluid control valve and a reduction of ope...
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JP2002276824A |
To increase a life by enhancing oil pit resistance in a valve element used in an accumulator safety valve of a die casting machine.The valve element of the present invention comprises a precipitation hardened stainless steel (for example...
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JP3318422B2 |
PURPOSE: To provide a valve of a type where its shaft part is protected from the effect on the corrosion or other damages by a seal assembly to be protected from the effect on the corrosion or other damages caused by the line fluid, and ...
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JP3318334B2 |
The valve has a sleeve-like closure element (16) movable in an axial through-flow channel (4) with a lift drive (24) arranged coaxially thereto. Said closure element, when closed, bears on its outer periphery on a centrically arranged fl...
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JP2002228043A |
To provide a vacuum valve capable of restricting deformation of a seal ring in a closed state, and protecting the seal ring from corrosive gas.The vacuum valve comprising a wall body 2 having an opening part (a valve port) 1 and a valve ...
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JP2002136304A |
To provide an inflatable shoe provided with a deflation valve designed so as to limit an inadvertent operation of the deflation valve and inadvertent deflation of the shoe by the operation.This deflation valve 4 is provided with a short ...
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JP3279937B2 |
To cool members such as a valve disc or casing and to improve heat resistance by forming a vent part at an upstream side of the disc to close an air supply side at the time of exhausting, and supplying a small amount of the air from a ve...
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JP2002115513A |
To provide an iron group sintered alloy two-layer valve seat excellent in abrasion resistance and having a little opponent attacking property.This iron group sintered alloy two-layer valve seat is composed of two layers of a valve abutti...
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JP2002510023A |
The invention concerns a metering valve for dispensing a pharmaceutical product, comprising in particular a valve body (1), a metering chamber (2) and a valve stem (10) sliding in said metering chamber (2) between an inoperative position...
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JP2002089213A |
To provide a light-weight engine valve by making a bevel part and a shaft end part out of a minimum metallic material, and making the other parts out of a plastic material.A metallic head member 2 and a metallic covering cylinder 3 havin...
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JP2002089722A |
To improve sealability at valve closing time.In this pressure control valve 14, an adapter 57 formed in ring shape is interposed between a cage 47 and a retainer 48. A second port seal 58 is installed in a groove 57a of the adapter 57. A...
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JP2002071038A |
To provide a valve element seat eliminating complicated pressure adjusting work for a sheet pressure to obtain a high level of water stopping property and preventing a degradation in water stopping property in case of damage to a sealing...
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JP2002061754A |
To provide a butterfly valve that can prevent adhesion of a marine organism and maintain given sealing performance and smooth opening and closing performance after long-term use.The butterfly valve has a valve element 3 disposed inside a...
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JP2002504656A |
The present invention relates to a high-pressure hydraulic valve in which the housing (1) at least and also preferably the operational parts, such as the main control piston (3), the manometer piston (6) and the like which are arranged i...
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JP3253695B2 |
PURPOSE: To provide a sea water valve made of a stainless steel which is designed to prevent the corrosion and pitting corrosion perculiar to a valve made of a stainless steel from being caused by setting a sacrifice anode in a valve box...
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