Method and system of valve refurbishment
AssigneeHager Industries, LLC
InventorNathan Hager
Life of this patent
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Abstract
A method of refurbishing a damaged valve is disclosed that generally includes receiving a valve housing having generally collinear inlet and outlet ports in the side walls thereof and an interior annular face about each of the inlet and outlet ports, the housing comprising a first metal with a yield strength and the side walls having a predetermined thickness, creating an annular groove about an interior annular face of the inlet port, creating an annular groove about an interior annular face of the outlet port, and placing a second metal within each of the annular grooves, the second metal having a yield strength, wherein the yield strength of the first metal is less than the yield strength of the second metal.
Claims20
A method, comprising:
- (a) receiving a valve housing having generally collinear inlet and outlet ports in the side walls thereof and an interior annular face about each of the inlet and outlet ports, the housing comprising a first metal with a yield strength and the side walls having a predetermined thickness;
- (b) creating an annular groove about an interior annular face of the inlet port;
- (c) creating an annular groove about an interior annular face of the outlet port;
- and
- (d) placing a second metal within each of the annular grooves, the second metal having a yield strength, wherein the yield strength of the first metal is less than the yield strength of the second metal.
A method of refurbishing a damaged valve, comprising:
- (a) receiving a damaged valve assembly, the valve assembly comprising:
- (i) a valve housing having generally collinear inlet and outlet ports in the side walls thereof and an interior annular face about each of the inlet and outlet ports, the housing comprising a first metal with a yield strength and the side walls having a predetermined thickness;
- (ii) a chamber disposed between the inlet and outlet ports, wherein the vertical axis of the chamber is normal to longitudinal axes of the inlet and outlet ports;
- and
- (iii) a sealing member disposed within the chamber having an axial bore therethrough;
- (b) removing the sealing member from the chamber of the valve housing;
- (c) creating a U-shaped substantially smooth annular groove about the interior annular face of the inlet port after step (b), wherein a horizontal axis of the U-shaped groove is normal to the interior annular face of the inlet port;
- (d) creating a U-shaped substantially smooth annular groove about the interior annular face of the outlet port after step (b), wherein a horizontal axis of the U-shaped groove is normal to the interior annular face of the outlet port;
- (e) placing a second metal within each of the annular grooves, the second metal having a yield strength, wherein the yield strength of the first metal is less than the yield strength of the second metal
- (f) allowing the valve housing to cool after step (e);
- and
- (g) placing the sealing member into the chamber after step (f).
Dependencies are inferred from the claim text.