Hydraulic and pneumatic pipe systems often have to withstand extremely harsh conditions. Conveying abrasive materials such as ash, sand or sinter dust subjects pipelines to acute levels of stress. Even thick-walled steel or cast iron pipes often show significant signs of wear in an extremely short period of time. Pipe bends, where flow is subject to heavy turbulence, are particularly susceptible to wear, often achieving a service life of only 1/20th that of the associated straight pipe runs.
Special piping design, speed of conveyance, cycle time, or special pipe dimensioning can keep the rate of wear in check to some degree, but in most cases these measures necessitate a simultaneous decrease in throughput or else piping design constraints makes it impossible to implement them within the available space. Good results regarding plant layout, throughput and service life can nevertheless be achieved by lining pipes and pipe bends with wear-resistant materials.
Hydraulic piping should be protected from wear along its entire length. In pneumatic conveyance systems, experience shows that most wear occurs in pipe bends and in the piping immediately beyond them. For this reason, wear-proof piping with internal lining is used at such locations. The right wear protection often comprises a combination of wear-resistant materials that safeguard the continuous production process. Depending on the specific requirements, Kalenborn lines pipes, pipe bends and cast pipe fittings with hard, elastic or spray-on materials and protects them from wear.
Kalenborn's standard range includes the following wear-resistant piping systems with standard diameters:
- ABRESIST pipes and pipe bends
Fused cast basalt
- KALCOR pipes and pipe bends
- KALOCER pipes and pipe bends
High alumina ceramic
- Long service life
- Maintenance-free operation
- No unscheduled downtime
- No production outages
- Lightweight construction for low transport and installation costs
- Energy-efficient operation thanks to smooth material lining, and excellent throughput characteristics prevent pressure losses and blockages
- No contamination of the conveyed materials due to abrasion, mixture or corrosion
Many materials physiologically harmless and therefore also suitable for food contact applications
- Kalenborn pipe systems are UV- and acid-resistant, i.e. suitable for demanding chemical applications
Along with DIN EN ISO 1127 and ASME-BPE 1997, Kalenborn has developed the standard Rd 6a: it uses strong linings to protect pipelines against wear and extend the service life of stressed components. The specific design takes the following parameters into account: