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

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

1980-05-05

1982-07-13

Chambers, A. Michael

Valves and valve actuation

Valve

Bodies

F16K 2700, F16K 500

Patent

active

043391125

ABSTRACT:
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 operation, 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.

REFERENCES:
patent: 3348804 (1967-10-01), Piccardo
patent: 3666237 (1972-05-01), Piccardo
patent: 3737145 (1973-06-01), Heller et al.
patent: 3869108 (1975-03-01), Graham

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