FIELD: shutoff of pipelines. SUBSTANCE: device for emergency shutoff of pipeline has pressing members with similar in shape working surfaces and connected with driving mechanisms, attachment made in form of easily deformable material and located between pressing members and pipeline. Driving mechanism is made in form of air cylinder connected with cross-piece and guides connected with pressing members. EFFECT: higher efficiency. 2 cl, 2 dwg
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Authors
Dates
1996-09-20—Published
1994-01-13—Filed