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US4268071A Device for coupling pipeline flanges 失效
管道法兰连接装置

Device for coupling pipeline flanges
摘要:
A device for connecting the flanges of two pipelines including a series of radially equally spaced gripping dogs on one of the pipelines for gripping the flange on the other of the pipelines means for moving the gripping dogs axially and radially whereby the gripping dogs axially pull the flanges toward the other pipeline into sealing relationship.
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