The column welded steel apparatuses are manufactured with diameter from 300 to 8000 mm, designed for technological processes in chemical, petrochemical, oil refining and other industries at temperature from minus 60 °? to plus 560 °? at overpressure up to 10,0 MPa and without pressure and under vacuum (residual pressure not lower than 665 Pa).
Apparatuses can be installed indoors or on an open area with average temperature of the coldest five-day period up to minus 60 °? and with wind load corresponding to I-IV regions of the territory of the Russian Federation by wind velocity head, with seismicity less than 7 points according to the twelve-point system accepted in the Russian Federation.
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