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We produce custom pipes and casings under the motto “If it can be designed, it can manufactured”. LBF produces welded constructions based on customer-drawings (STEP-, DWG-, DXF-files) or LBF drawings developed and released together with the customer. Some of these constructions require very stringent testing and documentation, e.g. for Exxon, BASF or for use in nuclear engineering.

This custom piping is a part of an exhaust air treatment facility for BASF in Antwerp. The customer provides production drawings and parts lists. All welding is done by certified welders and the welding process is verified by welding procedure qualifications. The requirements for welding companies are met as per DIN EN ISO 3834 – Part 2. After verification of gas tightness, heating coils are placed on the surface of the piping followed by insulation with mineral wool.

Exhaust air or wastewater flow often accumulates in industrial plants and needs to be chemically or thermally treated – as an alternative, filter systems can be used. The customer or planner decides on the most sensible process and LBF designs and constructs the corresponding vessels –stainless steel 1.4301 or 1.4571 is usually used here with a typical thickness of 3-6 mm. In particularly critical cases, an additional interior coating (e.g. rubber lining) can be applied.

Cyclones are designed as centrifugal separators and, therefore, also used as filters. The construction is robust and contains no filter media (low-maintenance). The starting medium is blown in via the tangential media inlets. Solids and heavier components are guided downwards by gravity and passed through sluices or caught in dust collecting boxes.

Rubber linings are also interior coatings that, however, are applied some millimetres thick. Its resistance to chemicals depends on the type of rubber lining and can be quite high. Rubber linings are considerably more stable in comparison to other coatings with respect to abrasive media, i.e. media with hard, sharp-edged elements. Before the rubber lining can be applied, the interior surfaces of the tank or vessel and the weld seams, must be flawlessly welded and ground – without edges, without pores.

Reactive silencers are usually only made of sheet metal or stainless steel and do not contain mineral wool, because in specific industries porous materials are avoided for hygienic reasons. However, this also creates a larger construction. The advantage is that it can be completely cleaned with disinfectants or steam cleaned. The silencers pictured here are located on the roof of a manufacturer of a nut-cocoa-spread which causes sticky particles in the exhaust air.