Apparatus for extending a header

Details Apparatus for extending a header Apparatus for extending a header

1982-05-06

1984-12-25

Schwadron, Martin P.

Fluid handling

With repair, tapping, assembly, or disassembly means

Assembling, disassembling, or removing cartridge type valve

29157R, 137 15, 138 94, 285325, 405169, 405170, F16L 3100

Patent

active

044897472

ABSTRACT:
A header or other pipe under pressure which is blanked at its terminal end by a closure plate is extended without the need of a shutdown or the construction of bypass piping. In a series of steps in the method disclosed, alternate bolts in the ring of bolts holding the closure plate to the annular flange of the existing pipe are variously repositioned or replaced to accomodate the construction of the extension while maintaining an adequate seal to prevent the escape of the pressurized fluid in the pipe. A structure which is installed as a product of this method and an apparatus used in this installation are also disclosed.

REFERENCES:
patent: 2816730 (1957-12-01), Rabas
patent: 3069132 (1962-12-01), Grove
patent: 3386151 (1968-06-01), Combes
patent: 3731361 (1973-05-01), Tatterson et al.

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