Pipe joints or couplings – Repair
Patent
1978-06-01
1981-05-19
Zugel, Francis K.
Pipe joints or couplings
Repair
29157R, 2940202, 2940218, 138 44, 138 45, 138 97, 138 99, 285172, 285297, 285 18, 285363, 137 15, F16L 2302, F16L 5516, F16L 5518
Patent
active
042680700
ABSTRACT:
An orifice flange clamp for use with a pair of butted together pipe line orifice flanges. The clamp is comprised of a pair of semi-circular bands adapted to be clamped together around the periphery of the butted together orifice flanges at their interface. The bands have cut-out sections fitting around the conventional test plugs on the orifice flanges. Plugs are provided for sealing off the break-away bolt holes. A specially devised pumping collar is provided for pumping sealant through a flange bolt hole. This pumping collar comprises an elongated bolt-like member having a reduced diameter fitted through opposed flange holes with nuts at both ends in order that a pumping collar having a loose fit over the elongated bolt-like member can be drawn tight. The pumping collar is provided with a port which receives a sealant line for pumping sealant at high pressure through the port and through the collar to the interface between the butted together flanges.
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Tube Turns.RTM. Forged Flanges, Catalogue, pp. 138-139 (A Div. of Chemitron Corp., Box 32160, Louisville, KY 40232). _
Pietruszka Carl F.
Robbins Glenn K.
Zugel Francis K.
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