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JP3037637B2 |
To provide a sluice valve which can process the earth, the sand, the dirt, and the like fed from a recessed groove at the bottom in a valve box immediately under a sluice valve body, easily and at a low cost. A sluice valve 1 furnishes a...
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JP2000104844A |
To provide an automatic control valve provided with a means capable of improving control performance of the automatic control valve by suppressing wear due to sliding of an inside surface of a cage and a plug or a valve element, suppress...
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JP3020123B2 |
PURPOSE: To easily and surely control a fine flow amount of fluid by reciprocating a valve element, suited for use of metering and mixing fluid, to a closed position of interrupting the fluid and to an opened position of circulating the ...
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JP2000502433A |
(57) [Summary] The present invention is inserted into a recessed seat 3 in one of two parts 1 and 4 with a seal formed between them, and elastically pressed against the other part. For seal packing made of elastomer material 9 for hydrau...
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JP2000028010A |
To improve the sealability by providing a bead comprising a rubber- like elastic member to be attached/detached to/from a valve seat on a seal part of a valve element, and integrating a seal lip higher than the bead with a transfer fluid...
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JP2000002350A |
To provide a check valve which can operate at a high speed and with high frequency and which has a high durability. This check valve is composed of a valve seat 11, ball 12, stopper 13, and a coupling member 14 to combine the seat 11 and...
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JPH11336920A |
To provide the valve plate structure of a passage selector valve which can select smoothly while keeping a sufficient air-tightness and liquid-tightness, even when a foreign article is mixed in a working fluid and infiltrated into a slid...
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JPH11325261A |
To ensure detection of the inflated and shrunk condition of an inflated sheet and of the position of the inflated sheet with a mechanical means. An inflated sheet 6 formed of elastic material, inflated or shrunk ranging between an inflat...
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JPH11325290A |
To improve abrasion resistance and airtightness of a valve device without containing cobalt by performing CrN ceramic coating on a base material of a valve element for, a sliding portion of the valve element from among sliding portions i...
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JP2979530B2 |
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JP2977766B2 |
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JP2972385B2 |
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JPH11286701A |
To improve the erosion resistance of a valve seat surface as well as the wear resistance. A stellite No.6 powder is mixed and crushed by mechanical alloying (MA), and electric discharge plasma sintering (SPS) is performed by using an ele...
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JP2963941B2 |
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JP2959252B2 |
PURPOSE: To eliminate risk of a secondary fluid contacting a spring and enhance the corrosion resistance, etc., by setting off a projection on a piston from an orifice when the primary pressure rises to cause piston movement against the ...
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JP2952174B2 |
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JP2945851B2 |
PURPOSE: To eliminate the unnecessary biting quantity caused by the thermal expansion of an elastic sheet ring at a time of high temperature by making a metal strip abut on the external periphery of the elastic sheet ring and providing a...
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JP2941544B2 |
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JP2598802Y2 |
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JPH11211285A |
To provide a highly reliable open/close valve and a refrigerator using this open/close valve by enhancing the durability of a valve element of the open/close valve used in a refrigerating circuit of a refrigerator. An open/close valve 10...
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JP2598164Y2 |
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JP2598215Y2 |
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JP2923274B2 |
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JP2912591B2 |
A two-piece check valve device comprising a rubber sealing element (12) and a plastic carrier member (14). A through bore in the plastic carrier member receives the sealing element, which is formed with an annular groove (23) in which th...
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JP2596703Y2 |
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JPH11153172A |
To improve abrasion resistance, and eliminate generation of abnormal negative pressure and noise while maintaining a moderate contact condition on a contact surface by embedding hard particle on a surface of a valve element of a check va...
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JPH11141697A |
To structure a spool without a seal lip for sealing the bottom of a packing mounting groove and prevent the packing from levitating. A packing 12 to be fitted in a packing mounting groove provided in a spool body is furnished with a levi...
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JPH11118052A |
To provide a flow control valve having reduced vibration and noise and high durability by providing flexibility to a plug and easily bringing the tip of the plug into contact with a valve hole. In a flow control valve provided with a plu...
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JPH11117035A |
To provide a sliding member manufactured by using sintered aluminum alloys capable of decreasing a seizure phenomenon, adhesive friction, etc. An outer rotor 5a and an inner rotor 5b are formed of sintered aluminum alloys, respectively. ...
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JPH1194112A |
To stably isolate gas when pressure of the gas varies, by preventing an annular rib from permanently deforming when pressure of the gas is very high in the isolation state. The isolation valve consists of a main valve and a sub valve, an...
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JPH1182800A |
To improve corrosion resistance and reliability by applying surface treatment to a core member. A core member 20 is inserted into a casing main body 16 of a solenoid valve 14, and in the core member 20, a chlorine resistant nickel plated...
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JPH1163251A |
To provide a valve that has stronger resistance to seize-up and improved workability at the sliding portion of its valve seat or the like for its adaptation especially to a nuclear power plant as a sluice valve. The sliding surface of at...
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JPH1162833A |
To make an endurance period eight times by making the proper difference of hardness between a valve main body and a valve seat and the proper facing surface state so as to prevent the erosion phenomenon, and by making the proper surface ...
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JPH1151513A |
To eliminate the occurrence of problems with the strength of a multipolar magnet, or the stability of size and the sliding of a valve body, by constituting the multipolar magnet of the plastic magnet in which magnetic powders is kneaded,...
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JPH1137329A |
To inhibit the generation of particles every opening and closing operation of a valve. In a diaphragm valve where a diaphragm 6 is pressed to a valve seat face of a valve casing 1 for cutting off the liquid flowing inside the valve casin...
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JPH1137328A |
To prevent intrusion of liquid into an insulating material and to improve a valve function by arranging the insulating material between a valve seat and an upstream inner wall part forming an upstream passage and arranging an upstream be...
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JPH1137330A |
To prevent large thermal stress from applying on a valve seat and a valve box by supporting the valve seat movably in the radial direction inside the valve box, providing a thermal movement part for absorbing thermal displacement in the ...
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JPH1130353A |
To provide a valve capable of certainly sealing a valve body and a valve seat without requiring great force at the time of sealing the valve body and the valve seat by using reaction force and inside pressure in simple structure and exce...
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JP2851782B2 |
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JP2851763B2 |
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JPH1122851A |
To prevent the opening and closing movements of a valve from becoming unstable below freezing point. In a valve sealing structure in which a valve element part 4 has a sealing member 42 made of an elastic body, which seals the seating su...
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JP2848431B2 |
PURPOSE: To easily repair abrasion resistance walls of a port of an exchange seat by removing the abrasion resistance walls integrally with the exchange seat, and replacing it with the exchange seat provided with new abrasion resistance ...
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JPH10331994A |
To securely maintain the sealing property of a chute and a valve element by making a diameter of a bottom circle of the valve element having a conical shape larger than a diameter of a circular discharge port of the chute and connecting ...
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JP2586483Y2 |
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JPH10318103A |
To reduce the accumulation of a deposit between the sliding surfaces of the valve part of a valve shaft and a housing, and maintain the operability of the valve shaft over a long time. This rotary solenoid type actuator is equipped with ...
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JPH10311440A |
To prevent fine particles from adhering to fine irregular flaw parts due to abrasion or impact, and prevent the occurrence of defective painting caused by the mixing of foreign matters such as fallen agglomerate into a paint film. In a v...
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JPH10292880A |
To provide a very low temperature valve furnished with at least a pair of seal elements, in which the structural and manufacturing technical costs are normal even in an extremely low temperature, and a very high sealing property can be o...
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JPH10281312A |
To maintain good sliding characteristic for a long time, by forming a sliding face of a one valve by impregnating a specific lubricant into opening pores of a silicon carbide sintered body with three-dimensional network struc ture, and f...
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JP2583548Y2 |
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JP2811128B2 |
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