Plastic Piping Systems in the Waste Incineration Industry

Waste incineration plants require highly durable piping systems for transport in areas such as process and storage facilities. They are used wherever highly corrosive media must be handled and where conventional materials are not sufficiently resistant. The flue gas-scrubbing units in waste incinerators are particularly demanding of fibre reinforced plastic pipes. STEULER-KCH is the expert when it comes to sophisticated piping systems that are able to withstand the enormous stresses involved.

Our portfolio of services for waste incineration plant operators includes the design, manufacture and installation of pipes made from glass fibre-reinforced plastics (GRP) with thermoplastic linings (KERAVERIN®) and from pure GRP (KERAPOLIN®). We primarily use polypropylene (PP) as a liner for the KERAVERIN® lining. The material stands out for its high resistance to chemical attack and abrasion resistance and is well able to withstand the stresses encountered in flue gas scrubbing units.

Dual-laminate pipes comply with the applicable DIN standard 16965 part 2/ pipe type B. This material is known as KERAVERIN®.

As GRP pipes with a chemical-resistant layer (KERAPOLIN), our pipes without thermoplastic lining are covered under part 4/ pipe type D. In order to ensure that these piping systems are also optimally protected against abrasion, we add a special filler to the chemical-resistant barrier (CRB) – always adapted to the requirements of the customer's production process. For spray lances used in flue gas scrubbers, for example, we apply the CRB both on the outside and inside, because this unit is exposed to particularly high stresses.

The operating temperature range is between -50 °C and approximately 200 °C, depending on the composite material used. We're well equipped to handle large diameters: we can fabricate piping with a diameter of up to 5.5 m.

Our standard portfolio comprises products with nominal diameters from DN 25 to DN 1000, whilst the grading of the standard nominal pressure varies, depending on the nominal diameter, and starts at PN 16. Naturally, we can also supply electrically conductive material systems suitable for use in areas subject to explosion hazards. Our pipes can be fabricated to be compliant with pressure equipment directives. We are also certified according to module H/H1.

STEULER-KCH's experienced specialists are there to provide you with expert assistance, from the initial consultation through to final assembly – in Germany and around the world. Our particular strength lies in consultancy: we work closely with our customers to select the combination of materials (liner, fibre reinforcement, resin matrix, etc.) best suited for the chemical, mechanical and thermal stresses expected in the plant. We develop custom combinations of materials in close consultation with users from the field.

The range of services we offer includes a plausibility check regarding design and materials and project support to ensure smooth and timely implementation, even for complex projects. We're flexible: alteration and customisation of the supplied pipes is possible at any time – even following delivery. Our after-sales service gives our customers the opportunity to share their experiences of completed projects, to learn about current product developments and if desired, to have the installed products inspected and evaluated.