C2-Sewage Pumps DN 32 to DN 600 - 2008.pdf

Sewage Pumps for Municipal and Industrial ApplicationsPlanning GuideCeram C2 Technical dataDescriptionCeram C2 is a high-performance ceramic compound material forrepairing and protecting all metal surfaces which are subject to abrasion,corrosion, cavitation and chemical exposure. Ceram C2 isapplied with a coating thickness of 1.5 mm. It does not shrink andconsists of almost 100% solids. Ceram C2 contains a high percentageof carbides for use under extremely abrasive operating conditionswhich involve complex and expensive repair measures. The materialcan either be used for restoring abraded metal surfaces or as a preventivecoating which is superior to the original metal with regard toabrasive strength. Ceram C2 can be used instead of metal application,tiles, rubber fillers, etc. The thermal load capacity is outstanding.CompositionPolymer/ceramic compound material made of a base compound andreinforcement.Matrix: A modified polymer made up of two parts with an aliphatichardening agent.Reinforcement: A mixture (protected by proprietary rights) made upof aluminium oxide and silicon carbide particles.This ceramic mixture has excellent abrasion strength and can beapplied very easily.PropertiesExcellent abrasion resistance ensures long operation and usually lastslonger than a welded-on metal coating. Can be easily moulded to anymetal surface.Its tough synthetic resin structure resists temperature shocks andimpacts.Excellent adhesion ensures reliability and prevents stripping.Simple application reduces work expenses and downtimes.Withstands chemically varying operating conditions when metals fail.Practical 4:1 weight and volume mixture ratio.Technical dataHardness Shore D 90Density ASTM D 792 1.85 g/cm²Shrinkage during hardening ASTM D 2566 0 mm/cmTension / shear resistance ASTM D 1002 13.24 N/mm²Tensile strength / ultimate ASTM D 638 27 N/mm²strainCompressive strength ASTM D 695 103.4 N/mm²Bending strength ASTM D 790 69.0 N/mm²Adhesion / steel ASTM C 633 ---Impact resistance / strength ASTM D 256 3.3 J/mCoefficient of linear expansionASTM D 696 ---Electric resistance ASTM D 257 ---Heat conductance ASTM C 177 ---Electric dielectric strength ASTM D 149 4 KV/mmTemperature stability, dry ASTM D 648 250°CTemperature stability, wet ASTM D 648 80°CStability tableFluidFactorAcids10% sulphuric acid 120% sulphuric acid 25% hydrochloric acid 110% hydrochloric acid 220% hydrochloric acid 35% acetic acid 210% acetic acid 4Bases and bleaches10% sodium hydroxide 130% sodium hydroxide 128% ammonium hydroxide 110% potassium hydroxide 150% potassium hydroxide 1Other compoundsIsopropyl alcohol 1Kerosene 1Naphtha 1Salt water 1Sewage 1Toluene 1Xylene 1Bunker C 1Diesel 1Tested at 20°C. Sample hardened 7days at 20°C. Longer hardening improvesthe chemical resistance.Key: 1 = stable; 2 = stable, short-term; 3 = overflow-stable, immediate cleaning;4 = not recommended for direct contact148 Subject to change without prior notice 09/2007 WILO AG