They refer to the shut-off valves of two-position action. They are used exclusively for opening or closing of pipelines by means of reciprocating movement of the shut-off valve.
Connection to the pipeline: under welding.
Installation position on the pipeline: any, in the upper hemisphere relative to the neck. Valves are designed for outdoor and indoor installation.
Direction of medium supply: recommended under the plug.
Gate tightness: according to class A of GOST 9544-2015.
Climatic execution: U, UHL, T according to GOST 15150-69.
Placement category: 1, 2, 3 according to GOST 15150-69.
Force on the handwheel (handwheel, handle): not more than 300 N. .
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