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JP2004044807A |
To provide a distribution valve for controlling cavitation and/or oozing out and/or feeding of liquid when closed.The distribution valve 10 is provided with a fluid transportation housing 16; a valve seat 40; a diaphragm/poppet assembly ...
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JP3496059B2 |
To even the deformation of a metal bellows so as to improve the durability by providing an adhesion preventing plate for covering a metal bellows, which air-tightly seals a space between a flow passage and a valve body driving unit, so a...
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JP2004019784A |
To provide a suitable structure for applying a jacket structure of cooling a valve shaft sealing part to a triple eccentricity type butterfly valve.This triple eccentricity valve suitable especially for controlling opening and closing hi...
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JP2004011790A |
To provide a triple eccentricity butterfly valve to feed high temperature and high pressure fluid which prevents leak of fluid through the butterfly valve outward, smoothes rotation of a valve element, and easily and securely closes a fl...
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JP3472650B2 |
To perfectly eliminate fluid leakage due to non-metal substances in material by providing a valve seat which has cleanliness of 0.05% or lower, and is formed of alloy containing Ni, Cr, Mo, C, Si, Mn, P, Cu and Al with a specified wt.% c...
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JP3472616B2 |
PURPOSE: To improve the responsiveness, the stability, the control precision, etc., and realize the remarkable miniaturization by turning a lower part of a valve element supporting shaft by the driving force of an actuator to separate th...
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JP3471196B2 |
To easily and quickly perform, through a very small number of procedures, installation and removal of a device between two members to be connected and to easily and accurately adjust a face-to-face dimension while the members are connect...
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JP3469331B2 |
PURPOSE: To make the biting of a fluid and any crack in a diaphragm circumferential edge hard to arise as well as to make improvements in sealability. CONSTITUTION: An inner circumferential edge of a diaphragm 11 is held between two ring...
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JP2003314695A |
To provide a high temperature resisting seal structure, a valve reducing valve driving force, and a side thruster for an airframe, eliminating a fear of causing operation failure by preventing an actuator from being exposed to a high tem...
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JP2003529031A |
A sanitary diaphragm valve is provided that includes a generally dome shaped diaphragm having a central boss that can be connected to or driven by a valve actuator. The diaphragm includes an outer peripheral edge and a relatively thin we...
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JP2003269653A |
To provide a valve 1 having a compact whole body, wherein maintenance such as a replacement work of a packing 14 is improved.This valve is provided with a fitting hole 10 formed in the upper part of a yoke 3, a yoke fitting ring 9 detach...
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JP3450165B2 |
To hold the pressing force to a ground packing over a long period of time by interposing the ground packing between a packing storing means and a valve shaft inserted in the means, and pressing the ground packing through a packing pressi...
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JP2003524251A |
A device with a diaphragm arrangement dividing two chambers from one another, in which the diaphragm arrangement is retained via a crimped connection, excellent restraint of the diaphragm arrangement and excellent sealing are attained wi...
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JP2003522926A |
A valve stem sealed by a packing. A spigot applies an axial compression loading to the packing via a sleeve when bolts are tightened. A clamp attaches two parts of the valve body to each other with the bolts extending between the spigot ...
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JP3421223B2 |
To provide a gland packing unit for valve which ensures that a gland packing is installed and replaced very simply and certainly, the gland seal part is constructed small, and the whole valve is made small. This gland packing unit is for...
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JP3421029B2 |
A method and apparatus are provided for injecting sealant into a packing assembly chamber surrounding a valve stem 11 of a valve 2 without venting the pressure within the valve 2. A cylindrical body 60 is frictionally welded to the exter...
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JP3421222B2 |
To prevent fluid leakage by forming a slit, which extends along the substantially axial direction of a valve shaft, in the circumference wall of a gland part in an upper lid and providing a fastening member fastening the circumference wa...
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JP2003172349A |
To provide an inexpensive bearing structure automatically aligning by absorbing inclination or a deviation between bearings, suppressing the leakage of air around a shaft, and having the small number of parts.A contacting surface of a be...
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JP3416060B2 |
To provide the shaft seal part structure of a valve capable of holding a bush at a member on the valve casing side and eliminating screw machining in a paint spot. A through-hole 14 in which a valve spindle 13 is inserted is formed in a ...
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JP3414990B2 |
To provide a stress relief preventing structure of gland packing which allows the pushing force to the gland packing to be held for a long period of time. A stress relief preventing structure of a gland packing is equipped with a valve s...
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JP3415159B2 |
A gas cylinder valve with minimum wetted area has a one-piece valving assembly comprising a valve member, a non-perforated diaphragm member and a valve stem, the latter including a threaded stud and a stem shaft threaded on to the stud. ...
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JP3413671B2 |
PURPOSE: To provide a valve usable also in the horizontal state as low temperature valve used for a line for passing low temperature liquid such as liquid helium. CONSTITUTION: The tip part of a valve rod 10 fitted with a valve body 9 is...
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JP3408722B2 |
To provide a valve device having a high washing effect. This valve device 1 has a valve rod 13, which is equipped with a valve element 13a operated by a drive means, and which is inserted into a valve chamber 12 bored on the drive means ...
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JP3093404U |
[Task] Provided is a leak prevention device for both air and electric valves, which is convenient for adjustment when a water leak occurs, and can be immediately detected when a water leak occurs and parts can be replaced quickly. The ai...
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JP3400073B2 |
PURPOSE: To prevent valve rod rotation of a ball valve and a needle valve in a simple structure, reduce its size, and facilitate its maintenance. CONSTITUTION: A parallel pin 6 is horizontally arranged on a lower end of a valve bar 5. Bo...
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JP3398327B2 |
To make the long-term stable use of a flexible film member isolating a shaft seal chamber and usually or periodically detect the whether there is any leakage or not. In this rotary valve which is so constituted that a seat ring 12 is fix...
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JP2003097760A |
To replace a gland packing without remounting a hydraulic structure of a hydraulic operation type large size valve.In the state of releasing the connection of a screw type coupling 40 at a lower end part of a valve stem 12 and a piston r...
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JP3389542B2 |
To provide a sealing device to improve the sealability between a seat ring and a valve element, facilitate the fitting of the valve element and a valve stem during the assembly, reduce the labor and prevent damages in a valve stem pressi...
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JP2003508695A |
The invention relates to a method and a device for monitoring a control fluid in the bellows (6) of a valve device (1) for treating fluids under aseptic conditions. The aim of the invention is to improve the safety of known valve devices...
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JP2003042310A |
To provide a gate valve certainly preventing a by-product from adhering to a seal portion, and having high reliability with a simple structure. This gate valve 10 comprises a gate portion 18 rocking between a close position P1 and an ope...
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JP2003042339A |
To prevent adhesion of products generated by the vacuum treatment in a vacuum treatment device to internal structural parts of a vacuum valve provided in an exhaust passage of the vacuum treatment device. This vacuum valve is formed of a...
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JP2003028314A |
To simply and inexpensively structure a gate valve, to simplify the operation of the gate valve, and to improve the reliability of the gate valve.This gate valve 10 comprises a gate portion 18 rocking between a closing position Pa and an...
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JP3372091B2 |
A diaphragm valve structure which is durable and has high reliability is obtained. In the diaphragm valve structure, a body 11, a valve seat 12, a seat holder 13, and a diaphragm 14, are provided; an inflow passage and an outflow passage...
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JP3370913B2 |
To dissolve discrepancy such as difficulties for adjusting pressing force proper with respect to a grand packing and the like can be given. When a grand packing 6 proceeds in plastic deformation due to secular change while a lower slide ...
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JP2003021252A |
To adjust a flow rate of communicated pressure fluid by adjusting a valve opening of a valve element driven on the basis of an electric signal.This flow rate control valve comprises a rotating driving source 50 driven on the basis of the...
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JP2002539385A |
A gas cylinder valve comprises a valve body (10) having a valve chamber (30), an inlet passage (28) and an outlet passage (34) therein. An obturating body (38) is movable relative to a valve seat (40) in the valve body. A valve stem (48)...
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JP3345392B2 |
To provide an air-leak detector of direct pressure type, capable of exactly and stably detecting pressure change even if small one by reducing measurementrelated space, using simple structure. An upper box 14a, making contacting a lower ...
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JP3343313B2 |
PURPOSE: To improve tension strength and proportionality limit for enhancing the durability of a diaphragm by forming the diaphragm of a diaphragm valve of a thin plate made of specially blended and highly corrosion resistant alloy and c...
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JP3337875B2 |
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JP3337667B2 |
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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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JP2002295687A |
To provide a penetration device (vacuum pipe), in which slide friction is not generated during linear move of a guided member, to dispense with lubrication.In this penetration device of an insert member, a guide means for guiding the ins...
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JP3324967B2 |
A toilet flushing device has a body with an inlet and an outlet. There is a valve seat in the body in the flow path between the inlet and the outlet and a valve in the body movable toward and away from the valve seat to control water flo...
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JP3323433B2 |
To avoid any possible dangerousness due to an inflammable fluid, supporting that there is a leak happening in a stem sealing part to be usually installed in the lower end of a stem extension section, by preventing it from leaking to the ...
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JP2002250469A |
To prevent oil leakage from a variable throttle valve, even if the pressure adjustment is made during its operation.A variable throttle valve 13, which controls the fluid flow rate passing through an orifice hole 8 by making the insertio...
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JP3321685B2 |
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JP2002243062A |
To intercept a valve shaft insert hole from a coating passage by an expansible member provided on a valve shaft.A retainer 8 having the valve shaft insert hole 8A is provided in a casing main body 2, and a piston 13 and the coating passa...
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JP2002243048A |
To enhance seal performance around a valve stem 1, and to enhance and uniformize seal performance around the whole valve element 3.This valve seat for a valve V is composed of an elastic body fitted over the total length in a groove 4 fo...
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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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