Valves reverse

TU U28.1-39930604-005:2016. Analog ROU, ChZEM, FLAME

Valves and breech-blocks the reverse are used for back-wash prevention of working environment in pipelines.
Management - automatic.
Sealing surface is surfacing from corrosive proof steel..
Direction of environment serve - on a corps pointer.
Tacking of valves to the pipeline - under welding on.
Adjusting position - valves: on the horizontal areas of pipelines - by a lid upwards; deviation of mouth from a vertical axis - no more than 5°; - breech-blocks: on the horizontal areas of pipelines - by a lid upwards, on the vertical areas of pipelines - with streamline of working environment from below, under plate; deviation of mouth from a horizontal or vertical axis - no more than 5º.
Climatic execution - U1, U3 for GOST 15150.