Siemens Energy, Inc.

Siemens Power Generation, Inc.

Stuart C Weddle

Maxwell Pless

Michael Charles Moore

Robert F Wasileski

Richard Sennott

Jesse Horton

A device and method to aid in lapping a spherical washer to a steam turbine component are provided. The device includes a drive head, the drive head made up of a drive cap and a hollow cylindrical portion projecting from the drive cap. The drive cap abuts a surface of the spherical washer. The cylindrical portion fits within and is concentric to an inner diameter of the spherical washer. The device also includes an expanding gasket including an outer diameter having a contour configured to fit a contour of an inner diameter of the spherical washer and an inner diameter slides onto the cylindrical portion such that the gasket and cylindrical portion are concentric. The drive head attaches to a drive unit which imparts a torque to lap the spherical washer with respect to a steam turbine component. The expanding gasket expands and holds the spherical washer during the lapping.

Clapper style stop valve spherical washer lapping tool

A valve strainer basket of an interceptor-type or control-type steam valve is removed from its nested orientation within a counter bore and valve rim of the valve casing. A strong back beam straddles the casing rim over the strainer basket. It is coupled to the strainer basket, such as by engagement of threaded rods into threaded apertures formed in the strainer basket rim. Biasing cylinders, such pressurized fluid cylinders or screw jacks, are interposed between the casing rim and opposite ends of the strong back beam. When the biasing cylinders are actuated, the strong back beam rises, lifting and separating the strainer rim from its nested engagement with the counter bore of the valve casing.

Method and apparatus for removing a strainer basket from a steam valve

A tooling system including a workstation assembly and a toolkit, is for performing an operation on a valve assembly. The workstation assembly includes a base platform; upright members extending generally vertically therefrom; an adjustable valve seat assembly coupled thereto for adjusting the height and alignment of the valve assembly being worked on; a stabilizing assembly for further aligning and securing the valve assembly; and a clamping assembly for engaging and securing the valve assembly once it is aligned, in order to permit the operation to be quickly and easily performed on the aligned, secured valve assembly. A method of use is also disclosed.

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Independence, MO, United States of America

Stuart C Weddle