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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.

The central pipe with apparatus flange is fitted with lateral nozzles placed in regular intervals along the complete length of the pipe. These are used, among other things, as measuring points and must be precisely aligned and calibrated. The pipe is assembled from multiple sections and delivered in one piece. Provided documentation includes inspection certificates of the material and test protocols for the demension inspection, weld seam evaluation ISO 5817, quality level C and surface treatment – pickling.

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.

Halar is an engineering plastic very similar to Teflon; their durability and coating properties are comparable. However, Halar has significant advantages with regard to fire behaviour. For fire safety requirements our DUCoaT-system replaces complete pipe systems made solely out of PPS- Polypropylene in many applications. The Halar coating is applied on the interior of pipe and duct systems to protect the stainless steel material from aggressive components in the medium, such as acids and alkalis. Almost every shape can be coated, even the smallest diameters of measuring points.

Vessels and pipelines in the food and beverage industries must be constructed to withstand stringent cleaning and disinfecting. A maximum roughness (Ra) of 0,8 µm is often required in the component interior. Foil wrapped, cold-rolled sheet metal (2B) is used and the weld seams are tested for flaws and ground flush with the sheet metal surface in several steps.