High pressure fitting
First Claim
1. A system for conducting high pressure fluid from a source of high pressure fluid to a semiconductor processing chamber, the system having:
- a plurality of tubes through which the high pressure fluid flows; and
at least one fitting body for connecting the tubes and changing a direction in which the fluid flows, the fitting body comprising;
an outer surface;
an inner surface;
a passageway defined by the inner surface through which high pressure fluid is conducted, the passageway having at least a first end and a second end; and
a material thickness between the inner and outer surfaces of the fitting body sufficient to withstand the forces exerted thereon by the chance of direction of the high pressure fluid, wherein the inner and outer surfaces of at least one of the first and second ends of the passageway are welding surfaces.
1 Assignment
0 Petitions
Accused Products
Abstract
A high pressure fitting configured to be weldingly coupled to high pressure tubing is provided. The high pressure fitting and/or the tubing welded thereto may be chamfered to provided a smoother welded joint. The interior surface finish of the fitting is smoothed via an abrasive fluid flowed through the fitting'"'"'s fluid passageway. In fittings comprising a corner, the inner edge of the corner may be rounded by forcibly flowing an abrasive fluid through the fitting. Electropolishing further smoothes the interior surfaces. The inventive fitting allows flow system tolerancing to be tightly controlled by determining a desired distance between two high pressure fittings to be coupled, and adjusting the desired distance by a welded length variable.
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Citations
13 Claims
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1. A system for conducting high pressure fluid from a source of high pressure fluid to a semiconductor processing chamber, the system having:
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a plurality of tubes through which the high pressure fluid flows; and at least one fitting body for connecting the tubes and changing a direction in which the fluid flows, the fitting body comprising; an outer surface; an inner surface; a passageway defined by the inner surface through which high pressure fluid is conducted, the passageway having at least a first end and a second end; and a material thickness between the inner and outer surfaces of the fitting body sufficient to withstand the forces exerted thereon by the chance of direction of the high pressure fluid, wherein the inner and outer surfaces of at least one of the first and second ends of the passageway are welding surfaces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification