Tubes with insulation of coal-water slurry and foamed polyurethane insulation

“BaltStroyMetall” LLC due to enduring successful cooperation with makers offers you modern products answering high standards - at best prices and within minimum terms.

Insulation is made according to GOST 9.602 or TOR registered by “Gazprom” and “TransNeft” SC (on demand of the client).

Tubes with insulation of coal-water slurry

Currently plant insulation of tubes by extruded polyethylene is the priority in the world practice of protection tubes against corrosion. Steel tubes with external double corrosion-proof insulation of strengthened extruded polyethylene are meant for cross-country and field pipe lines for underwater and underground running (exploitation temperature is -20 to +60 Celsius degrees). Insulation is a coating of extruded polyethylene (thickness about 2-3.5 mm) on hard adhesive sublayer. Adhesive sublayer provides adhesion of the coating and steel pipe as external layer of polyethylene provides necessary mechanical strength. Comparing with bitumen insulation, PUF coating and others, technology of coating by extruded polyethylene on adhesive sublayer and possibility of step-by-step checking let reach much more higher performance figures of coating (especially such as outer mechanical damage resistance, good adhesion with pipe surface, low water saturation and water penetration capacity) which provides long (from 30 years) and accident free pipe line operation.

Tubes with foamed polyurethane insulation

Polyurethane is infusible thermosetting plastic with net structure. Only 3 per cent of the volume is hard stuff making a frame of walls and crossbars which provides the material with mechanical strength, guards layer of foamed polyurethane insulation from water, mechanical damage, prevents diffusion of polyurethane and provides high level of security. The rest 97 per cent of volume are pores. Close pores make 94 per cent. Foamed polyurethane insulation of tubes is a priority in pipe covering. Using of pipe covering of foamed polyurethane provides firm and effective heat and water isolation, reduces heat loss from real 25-30% to 2-3% and increases tubes’ life time from 8-15 years to 25-30 and more.