Integral end closure and hub for valve body and method of...

Details Integral end closure and hub for valve body and method of... Integral end closure and hub for valve body and method of...

F - Mech Eng,Light,Heat,Weapons

16

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251/51

F16K 5/06 (2006.01) B21K 1/20 (2006.01) F16K 27/00 (2006.01) F16K 27/06 (2006.01)

Patent

CA 1147711

ABSTRACT OF THE DISCLOSURE An integral valve end closure and hub formed from a circular section of steel plate having a small coaxial hole in the center The steel around the hole is swaged outward with a tapered die for initial forming of a hub and then, in a second swaging opera- tion, the outer portion is swaged to substantially cylindrical configuration. The result is an end closure starting with a cylindrical hub at the pipeline connection, and then flaring outward almost to the inner diameter of the main body member to which the closure is attached, by bolting or welding.

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