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US20100326535 |
Butterfly valves
A butterfly valve for forming an enhanced seal between the disk and the annular seal through use of unmated surfaces on the sealing face of the disk and the sealing face of the annular seal.
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US20120181469 |
THRUST PLATE FOR BUTTERFLY VALVE
A thrust plate for a butterfly valve includes a thrust plate body that defines a recess. The recess extends between a bottom thrust surface, side walls and an open top. A wear-resistant coating is...
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US20080078972 |
Butterfly valves having sleeve inserts
A butterfly valve having a valve body, a butterfly shaft, a butterfly plate, and a sleeve insert is provided. The valve body is made of a first material and the sleeve insert is made of a second...
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US20100301249 |
BUTTERFLY VALVE PLATE SEALING ASSEMBLY
Butterfly valve plate sealing assemblies are provided that include a sealing ring and a retention spacer disposed at least partially within a sealing ring groove formed about a periphery of a...
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US20120025118 |
BUTTERFLY VALVE PLATE SEALING ASSEMBLIES
A sealing assembly for use in a valve plate assembly includes a sealing ring and a retention spacer. The sealing ring has a radial ring section and an axial ring section, the axial ring section...
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US20080073612 |
Metal Seal With Flexible Insert
A rotary valve includes a valve body with an inlet, an outlet, a flow passage extending between the inlet and the outlet, and a rotating control element disposed within the valve body for...
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US20090014675 |
RESILIENT SEATED BUTTERFLY VALVE WITH INTERCHANGEABLE OFF-CENTER AND ON-CENTER DISCS
The resilient seated butterfly valve has a common spherical center for receiving either an on-center or off-center disc, both of which are rotatably mounted in the body. A seal has a seat spherical...
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US20120149292 |
DAMPER MECHANISM
A damper mechanism comprising a single piece damper blade and a damper seal. The damper blade having a tie-down tab pair, with the tie-down tab pair positioned along a periphery edge of the damper...
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US20080173841 |
Butterfly Valves And Construction Thereof
Various exemplary embodiments of a butterfly-type valve that provide a reduction in the unseating torque are disclosed that include a valve body defining a flow passage therein, and a closure disc...
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US20090184476 |
BUTTERFLY VALVE WITH A RIGID SEAL
A valve is disclosed and can include a valve body having a central bore for passage of fluid there through and a longitudinal axis. The valve can also include a seal installed within the valve body...
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US20110024660 |
Angle-seating butterfly vane and method for producing the same
The invention relates to vanes used in butterfly valves utilized in fluid control systems requiring special relationships between passing fluid and vane rotation and furthermore can provided leak...
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US20090032759 |
Shut-off organ with anchored ceiling element
A shut-off organ for a fluid line, particularly for the turbine feed line of a hydroelectric power plant, has a housing and a clack valve in the housing that can be pivoted between an open position...
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US20100032598 |
Pressure control batterfly valve
A pressure control butterfly valve includes a valve disc rotatable in a vertical direction relative to a flow passage in a body, a seat ring reciprocating in a direction of the flow passage to...
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US20090039305 |
Butterfly Valve
A butterfly valve, in which fluid leakage inside a valve disc and from a shaft seal part between through holes of a seat ring and a stem is prevented, when the valve disc is displaced under fluid...
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US20100044373 |
BUTTERFLY VALVE
The invention relates to a butterfly valve, comprising a passageway, a valve seat enclosing the passageway, a rotatable valve shaft which has an axis of rotation spaced from a plane through the...
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US20110024661 |
BUTTERFLY VALVE, PREFERABLY FOR A BLOW OFF CIRCUIT OF A GAS TURBINE PLANT
A butterfly valve, preferably for a blow off circuit of a gas turbine plant. In one aspect, the invention can be a butterfly valve for a blow off circuit of a gas turbine plant comprising: a...
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US20100019184 |
VALVE SEAL WITH INTEGRAL FLEXURE JOINTS
A valve seal for use with a valve having a valve element including a plurality of radiused corners. The valve element is rotatably mounted within a frame disposed in a flowbody. The valve seal...
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US20090317031 |
ROLLER BEARING UNIT AND GAS CONTROL VALVE ARRANGEMENT COMPRISING A ROLLER BEARING UNIT
A roller bearing unit, in particular, a needle bearing unit, which has an outer ring, a roller body cage, roller bodies and several sealing rings. The roller bodies are housed in the roller body...
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US20120267557 |
Butterfly Valve
A butterfly valve having a valve body is provided. The butterfly valve includes a valve disk assembly rotationally coupled to the valve body. The valve disk assembly has a disk member with a first...
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US20120168659 |
BUTTERFLY VALVE
In a butterfly valve having: a seat ring that is mounted on the inner circumferential face of a valve body; a valve stem that passes through a through hole in the seat ring, and is supported by the...
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US20130032744 |
VALVE HAVING AN ELASTOMER/CERAMIC SEALING RING
The invention relates to an annular, endless sealing ring having a part (6) made of elastomeric material, perforated with two diametrically opposite through holes (9) and a part (7) made of ceramic...
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US20110114863 |
Butterfly Valve, Valve Seat and Valve Seat Retainer
Butterfly valves comprise a valve seat comprising a generally S-shaped cross-section and a valve seat retainer configured with appropriately shaped cooperating surfaces. Fluid control systems...
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US20100308248 |
BUTTERFLY VALVE WITH A RIGID SEAL
A valve is disclosed and can include a valve body having a central bore for passage of fluid there through and a longitudinal axis. The valve can also include a seal installed within the valve body...
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US20120273708 |
BUTTERFLY VALVE HAVING FUNCTION OF MAINTAINING SEALING PERFORMANCE UNDER LOW AND HIGH TEMPERATURES
Disclosed is a butterfly valve capable of controlling a flow of a fluid according to a rotation of a disk. The butterfly valve includes a body provided with an inner space having two open ends; a...
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US20110095221 |
EXHAUST BRAKE VALVE ASSEMBLY
An exhaust gas flow control valve assembly comprises a valve casing forming an exhaust gas passage defining a cylindrical inner peripheral surface and a butterfly-type exhaust gas flow control...
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US20100148107 |
VALVE ARRANGEMENT
A valve arrangement has an annular housing with valve seat and a two-part valve plate that is rotatable about an axis. The seat is in the form of a disk including two adjacent openings with a web...
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US20120319022 |
FLEXIBLE SEALS FOR PROCESS CONTROL VALVES
Flexible seals for process control valves are disclosed. An example disclosed seal includes a seal for use with a butterfly valve. The example seal includes a substantially flexible ring-shaped...
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US20070170391 |
THROTTLE VALVE FOR INTERNAL COMBUSTION ENGINE
A throttle valve for an internal combustion engine includes a cylindrical valve housing and a spherical segment valve disc mounted within the valve housing. The spherical segment valve disc seals...
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