The gates are designed for use in launching and receiving chambers, filters-dirt collectors, in manholes-ladders of pipelines, in manholes-ladders of oil refining, petrochemical and oil and gas equipment, as well as at the end sections of pipelines DN 1501600, operating under pressure up to 16,0 MPa in order to provide access to the inner cavity of pipelines and apparatuses and temporarily connect them with the atmosphere.
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