Repair plug for heat exchanger tubes, especially for steam gener

Details Repair plug for heat exchanger tubes, especially for steam gener Repair plug for heat exchanger tubes, especially for steam gener

1981-11-13

1984-01-17

Marcus, Stephen

Pipes and tubular conduits

With closures and plugs

Inflation stem type

138 93, 165 76, F16L 5510, F16L 5512

Patent

active

044259441

ABSTRACT:
Repair plug for sealing heat exchanger tubes, including a closure plug part being tightly connectable to a heat exchanger tube and having an end for insertion into the heat exchanger tube, and a polisher plug part disposed on the insertion end of the closure plug part axially in front of the insertion end in insertion direction thereof forming a single structural unit with the closure plug part, the polisher plug part remaining in the sealed heat exchanger tube after completing the tight connection.

REFERENCES:
patent: 3590877 (1971-07-01), Leopold et al.
patent: 3724062 (1973-04-01), Cantrell et al.
patent: 3785291 (1974-01-01), Bergbauer et al.
patent: 3934731 (1976-01-01), Muller et al.
patent: 4026329 (1977-05-01), Thompson
patent: 4069573 (1978-01-01), Rogers, Jr. et al.
patent: 4349047 (1982-09-01), Ditto et al.

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