Description

Modules are made for pressure 10 to 250 MPa and higher, working temperature minus 40 to plus 400°С. Internal diameter up to 3,000 mm, wall thickness up to 300 mm, length up to 36 m, weight of modules or parts up to 460 tons.
Depending on purpose and required production parameters and geometry, units can have forged, forge-welded, laminated, rolled housings.

Uralhimmash has a proprietary, unique, dedicated production technology complex used to make large-capacity high-pressure equipment with rolled wall structure of the cylindrical part of the housing, designed to withstand hundreds of atmospheres and a temperature range of nearly 500 ºС.

To create the rolled wall of the side shell, hot-rolled coiled steel is continuously wound on the central side shell with a wall thickness of 16-36 mm. Steel coils can be 1,400-1,700 mm wide. Thickness of wound steel sheets, as a rule, is 4 – 6 mm. The central side shell can be of two-layer sheet, with one corrosion-resistant layer.

Tight contact between rolled side shell layers is a major reliability factor for the operation of high-pressure vessels.

The line makes serial automatic submerged welding on sheet steel to join various coils (side-bars). Thus each side shell can be wound at a step, ensuring a better use rate for coiled steel.