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WO/2002/101272A1 |
A plate (9, 10) made of hard material, having at least one flat surface machined by means of lapping and intended to be used as a member to control the flow in a hydraulic equipment unit, that consists of a thermosetting synthetic polyme...
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WO/2002/099323A1 |
A valve (20) for use in harsh chemical environments, which is substantially inert from the predations of the chemicals, is disclosed. At least a valve insert (2) is formed from ceramic. The insert (2) defines potential fluid passageways ...
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WO/2002/097314A1 |
A valve apparatus 840) controlling flow between a high pressure zone (42 or 43) and a low pressure zone (43 or 42), depending on whether the valve is used for discharge or filing, respectively, comprises a hollow body having a threaded h...
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WO/2002/075185A1 |
Disclosed is a butterfly valve where the sealing structure made between a rigid metal seat (130) and a rigid valve disc (126) is improved such that the valve disc (126) is closely contacted with the metal seat (130) with a zero point of ...
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WO/2002/068846A1 |
A butterfly valve opened and closed by the rotation of a disk-like valve element (3) in an elastic seat ring (2) installed on the inside of a tubular valve box (1), wherein pressing valve parts (10, 11) coming into contact pressingly wit...
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WO/2002/036999A2 |
A valve arrangement (10) for reducing the instability of fluid flow in a compressible flow governor valve includes a cutoff plug (12) with a lateral concave surface (14) and an end portion (16) having a substantially circular cross secti...
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WO/2002/033299A1 |
The present invention relates to a structure of valve sealing surfaces. The invention is characterized in that lineal contact length of the sealing surface (2) of a valve sear ring (1) and a valve plug member in direction of their mutual...
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WO/2002/031333A1 |
The invention relates to a throttle-valve assembly (10) comprising a housing (12) that has a throttle opening, through which a gaseous medium (70) can flow in a main direction of flow (72) and which has an approximately cylindrical cross...
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WO/2002/027219A1 |
The invention relates to a rinsing device for a sealing system on a housing element, comprising a sealing surface (6) and an associated closing element (2) with a radially outer elastic seal (4). The rinsing device comprises at least one...
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WO/2002/005048A1 |
The invention relates to a method and to a device for controlling at least one valve. Once a leakage in the system comprising said valve is detected, a control signal is produced that shortly opens and closes the valve for flushing, or t...
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WO/2002/001101A1 |
A valve seat (10) includes a seat body with an inlay and at least one groove (24). The seat body has a passage which extends from a first opening (20) to a second opening in the seat body. A channel (22) is located in the seat body adjac...
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WO/2001/094824A1 |
An orifice-built-in valve capable of implementing an excellent flow rate control characteristics by reducing the production costs of an orifice-built-in valve used for a gas supply device or the like provided with a pressure-type flow co...
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WO/2001/077560A1 |
A new valve device adapted specifically for use with hot erosive flow streams is provided. This valve device has an inner plug head (101), which modulates and throttles the amount of flow passing through the valve when the valve is open....
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WO/2001/031239A1 |
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 spaced fr...
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WO/2001/023791A1 |
A low frictional heat control valve capable of reducing the need for polishing the surfaces of a valve seat and a valve disc which is required because the inside of the valve seat and the outside of the valve disc may be damaged by frict...
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WO/2001/014192A1 |
An improved, air tight valve seat (42) for a pneumatic brake system is achieved by using a plastic valve seat that is coined by the valve member (30). The valve member is a harder material, for example metal, than the thermo-plastic valv...
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WO/2000/044640A1 |
A system is provided for contamination free delivery and control of a flowable medium contained in an enclosed flow path or a container. The device enables a flowable material to be formulated without anti-oxidants, preservatives or anti...
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WO/2000/023736A1 |
A method for forming the seat in a pulsed sampling valve used in a FTICR MS. The valve has a ceramic ball (44) that closes against the seat to thereby seal the passageway (36) that is used for introduction of sample into the FTICR MS vac...
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WO/1999/050156A1 |
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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WO/1999/047838A1 |
The present invention is a piston valve device (25) for use in connection with the fire protection industry, and including features for protecting against corrosion. The corrosion protection features include a replaceable sacrificial zin...
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WO/1999/042751A1 |
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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WO/1999/022163A1 |
An elastic spring element is made of ceramic reinforced with endless fibres.
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WO/1999/020926A1 |
A stem valve stopper that has a shell (1) intended to be mounted to a faucet (K). An operating stem (8) is mounted for rotation but is axially fixed in the stopper shell (1) and has a lower end that acts as a valve seat surface (12). The...
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WO/1998/050716A1 |
The valve includes a closure disc (34) sealable at its rim to a valve seat (18) so that in this position the seat (18) and rim define between them an annular space (54) which is connected to a port (60) by passages (54, 56, 58) extending...
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WO/1998/030820A1 |
Valve cartridge (10) includes a housing (32) having inlet member (54), outlet member (52) and screw thread (34). Cavity (36) extends axially through housing (32) within which is a piston (38) which moves axially against piston seal (44) ...
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WO/1998/015467A1 |
A seal packing made of elastomeric material (9) for a hydraulic apparatus adapted to be inserted in a seat (3) that is recessed into one of two parts (1, 4) between which a seal is to be established and to be pushed elastically into cont...
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WO/1998/010208A1 |
A gas regulator (10) is of a modular construction, having a base (12) providing coupling to a gas supply system and a body (14) in which the pressure regulation elements are located. The base (12) and body (14) form a plug and socket typ...
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WO/1998/004857A1 |
A dual plate check valve comprises a substantially cylindrical valve body (10) provided with a diametrical cross-member (14) thereby defining a pair of substantially D-shaped apertures, and two substantially D-shaped plates (18), pivotal...
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WO/1997/025559A1 |
A valve (10) is specified, having a closing member (2), co-operating with a valve seat (11), said closing member (2) and said valve seat (11) each having in their contact area a closing surface (16, 17), which bear against each other in ...
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WO/1997/020659A1 |
Valve obturators have a sealing surface which is designed to rest against the valve seat. As a result of the unavoidable play in the obturator mounting, the line seal between the sealing surface and the valve seat is not tight. In the pr...
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WO/1997/016360A1 |
A valve device for mounting in the neck of a container for a material to be dispensed, comprising a valve body (1) containing a chamber (2) axially defined on one side by a ring-shaped valve seal (3) that comprises a central aperture, an...
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WO/1996/016200A1 |
A packing element, in particular for shutting-off and regulating means, consists of a plate-like, piston-like or ball-like shutting-off body made of a metallic or non-metallic material, for example an Al2O3 ceramic material. A carbon- an...
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WO/1996/016201A1 |
A packing element, in particular for shutting-off and regulating means, consists of a plate-like, piston-like or ball-like shutting-off body made of a metallic or non-metallic material, for example an Al2O3 ceramic material. A carbon- an...
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WO/1996/016202A1 |
A packing element, in particular for shutting-off and regulating means, consists of a plate-like, piston-like or ball-like shutting-off body made of a metallic or non-metallic material, for example an Al2O3 ceramic material. A hard layer...
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WO/1995/032379A1 |
A sanitary slider valve shown specifically as a rotary carousel diaphragm valve which has a thermoplastic elastomeric diaphragm (230) integrally molded to form the multiple sealing ports of the rotor/stator interface is described. Ports ...
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WO/1995/027162A1 |
A valve in which a valve disc is slid on a valve seat to open and close a passage. This valve maintains its water-sealing property and handle operability even after the valve device is used continuously for a long time. The valve seat (6...
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WO/1995/002139A1 |
An air seal valve (8) is formed from an annular valve body (20) having a circular valve plate (12) disposed internally thereof with a pair of axially spaced valves (34 and 50) thereon defining a fresh air plenum (28), wherein one of the ...
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WO/1994/027069A1 |
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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WO/1994/024469A1 |
A novel seal (38) for sealing in between a ceramic valve seat (24) and a metal housing (42) providing a fluid-tight seal and a durable bond. The seal is a soft metallic nickel in its fully annealed state which is then work hardened by a ...
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WO/1994/010485A1 |
To improve the cut-off characteristics and operability of a valve device by providing the valve device with a valve body which is hardly hurt by the extraneous matter entering the same, and which has a high mechanical strength including ...
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WO/1994/006505A1 |
A valve for controlling the flow of fluid through a flow path, which valve comprises a housing (4) defining a flow path (5) and having two indented portions (3) about the flow path, a poppet (2) mounted within each indented portion such ...
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WO/1994/002763A1 |
The upper part of a valve has a head piece (1), a spindle (2) and a valve piston (3). The valve piston moves axially in the head piece (1). The spindle (2) rotates in the head piece (1). Spindle (2) and valve piston (3) are connected by ...
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WO/1993/004308A1 |
A throughflow valve (1) comprising a valve seat (2) and a valve body (3) is intended to permit a given flow of fluid to pass therethrough when the valve is closed. To this end, the mutually abutting surfaces (2a; 3a) of the valve seat an...
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WO/1992/021900A1 |
Disclosed are a process for cleaning a double seat valve, in particular a low-leakage or non-leaking double seat valve; and a valve device for carrying out the process. The aim is to ensure among other things that the relevant areas of t...
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WO/1992/016473A1 |
A method for preparing ceramic bodies which do not self-adhere under stress or during ageing and which are provided for frictional components, wherein the chemical component making up the ceramic material is subjected to pressing, sinter...
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WO/1992/016778A1 |
In a valve of a sanitary mixing tap the sealing discs which are in mutual contact consist of sintered silicon carbide ceramic. Their operating surfaces are profiled to the extent of at least 75 % by grinding and/or lapping and/or polishi...
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WO/1992/013222A1 |
A pressure relief valve (14, 14A) has a reciprocable valve member (34, 34A) for seating on an annular seat face (66, 66A) of a nozzle assembly (38, 38A). The nozzle assembly (38, 38A) has an inner seat ring (40, 40A), a radially outer an...
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WO/1992/012377A1 |
A ball valve (68) type fluid coupling (10) having identical interconnectable parts (12, 14) characterized by low fluid spillage during disconnection. The rotatable ball valve (68) is axially displaceable by cam structure (74, 66) along t...
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WO/1992/004564A1 |
A valve is provided preferably having a moulded plastic valve plug with a plurality of preferably arcuate grooves circumferentially spaced in the forward surface of the plug. The arcuate grooves distribute fluid flowing between the plug ...
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WO/1990/015944A2 |
A throttling valve (10) which prevents the deterioration of valve surfaces. The claimed invention comprises a casing having an inlet conduit (13) for introducing a liquid or gas medium into said valve, a conically expanding outlet (15) c...
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