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JPS6128928Y2 |
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JPS61175375A |
A gate valve with a port, groove, undercut or other pressure relief means in the gate to facilitate unidirectional sealing when the gate is in one of its closed positions, and bi-directional sealing when the gate is in its other closed p...
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JPS6127625B2 |
A fluid flow control valve has a body 28, enclosing a transfer passageway whose bounding surface is profiled to provide streamline flow conditions. The passageway is constricted by means of a piston-like valve 32 moving transverse to the...
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JPS61136075A |
A balanced solenoid operated valve having a balanced solenoid plunger, and the valve can be made as a three-way valve or a four-way valve. In the four-way valve embodiment the solenoid plunger balancing means also functions as a sliding ...
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JPS6125953B2 |
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JPS6124587B2 |
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JPS6116316Y2 |
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JPS6113819Y2 |
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JPS6110709B2 |
A valve apparatus which comprises a main valve body and a main valve seat detachably abutting against each other to open and close a main fluid pass defined therebetween, and wherein, as measured from the longitudinal section of the valv...
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JPS6152471A |
A ball valve has a movable upstream valve seat with a metal lip engageable with the valve ball under pressure generated by a bellows section or metal membrane connected between the movable valve seat and the housing. The force of fluid p...
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JPS618316B2 |
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JPS6138283A |
PURPOSE:To enable a slider valve to secure the changeover of flow passage by the restriction of a spring receiving part maintaining the spring tension at the starting or ending point of the slider valve. CONSTITUTION:A spring receiving p...
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JPS613994B2 |
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JPS6117772A |
PURPOSE:To prevent an abnormal increase of pressure in a body cavity by connecting a body cavity to a fluid passage through a switch valve when pressure in the body cavity reaches a designated pressure. CONSTITUTION:When pressure in a bo...
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JPS6113078A |
PURPOSE:To reduce the load in the case when a cock is opened by pulling-up a main valve, by installing an expandable water chamber in the connection part between a main valve and a subvalve. CONSTITUTION:When a subvalve 31 is pulled-up b...
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JPS60196075U |
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JPS60191783U |
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JPS60237273A |
PURPOSE:To effect the pressure equalization in upstream and downstream as well as the opening and closing of a main valve body by the rotating operation of a valve shaft only by driving a sub valve body through an operating member screwe...
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JPS60237274A |
PURPOSE:To effect the pressure equalizing in upstream and downstream of a main valve body as well as the opening and closing of the same by simple one step operation by a method wherein a driving cam is provided at the end face of a valv...
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JPS6049795B2 |
The solenoid actuated valve device is comprised of a substantially cylindrical housing of magnetic material having a hollow tubular core of magnetic material disposed coaxially therein. The ends of the housing are sealingly closed by end...
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JPS60162774U |
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JPS60159276U |
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JPS60196483A |
PURPOSE:To prevent the occurrence of an abnormal increase in pressure by providing an inlet side passage connecting a valve chest to an inlet of a valve casing of a sluice valve and outlet side passage opened to the base of the valve che...
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JPS60192181A |
PURPOSE:To prevent leakage of a fluid in the interior even if a balance valve is damaged by providing a nonreturn valve in a passage between a balance valve and a fluid discharge port of a sluice valve. CONSTITUTION:If a grand packing 17...
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JPS60145668U |
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JPS6042321B2 |
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JPS60138079U |
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JPS60134983U |
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JPS60133131U |
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JPS60121574U |
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JPS60114380U |
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JPS60107472U |
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JPS60136670A |
PURPOSE:To open a valve by a relatively small power by advancing an auxiliary valve and then advancing the valve and successively opening the valve openings having small and large diameters. CONSTITUTION:An auxiliary valve opening 10 in ...
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JPS6024349B2 |
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JPS6017249Y2 |
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JPS6062678U |
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JPS605828B2 |
A slam-shut valve or overpressure shutoff device used in series with, and upstream of, a pressure regulator to provide overpressure protection for apparatus downstream of the pressure regulator in the event of regulator failure. Overpres...
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JPS59195259U |
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JPS59226770A |
PURPOSE:To simplify the structure and also to facilitate the operation by providing a biasing member that biases an auxiliary valve body to a normally closed position, which valve body opens and closes a communication hole that communica...
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JPS59222680A |
PURPOSE:To make stable control attainable without necessitating any seal, by making up a damper chamber outward a main check valve, while installing a pilot check valve in position between this damper chamber and a damper orifice interco...
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JPS59222679A |
PURPOSE:To make the maintenance of a balancing condition ever so easy, by making up a flow control part in a large diametral part of a control spool, while setting up a poppet part inside the control spool. CONSTITUTION:A control spool S...
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JPS59222681A |
PURPOSE:To make stable control attainable, by setting up a check valve and a control spool in series inside a body. CONSTITUTION:A check valve R and a control spool S are set up in series inside a body 14, while a spring 19 is installed ...
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JPS59180184A |
PURPOSE:To prevent lowering of packing surface pressure along the depth of a valve ground portion and to enhance packing surface pressure of the lowermost portion to improve performance of preventing leakage of a fluid by operating a sur...
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JPS59151676A |
PURPOSE:To achieve reliable work and to improve assembling work by fitting an auxiliary operating board idly to a rotary shaft of main valve then inserting the main valve rotary shaft through a bearing fitted in the groove of cover to us...
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JPS59147174A |
PURPOSE:To decrease required driving force, by sealing noncompressible fluid in a sealed vessel so as to equalize pressures between a valve part and a driving part partitioned by a flexible film. CONSTITUTION:A proportional control valve...
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JPS59122474U |
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JPS5926131Y2 |
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JPS5927476B2 |
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JPS5999140U |
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JPS5989869A |
PURPOSE:To reduce the drive force required to switch the rate of flow to high- speed position, by quickly lowering the axial thrust force of a valve spool, given by a fluid to be controlled, in accordance with increase in the amount of o...
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