Patent ID: 9103447
Filing Date: 2015-08-11
Classification: B23P,F16K,Y10T

Abstract:
1. 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; (d) heating the valve housing to between approximately 400 and 600 degrees Fahrenheit after creating said annular grooves; (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; and (f) after placing the second metal within each of the annular grooves, heating the valve housing to between approximately 950 and 1200 degrees Fahrenheit for approximately one hour per inch of the predetermined side wall thickness.