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Titel_TTMMJJ Paint circulation system - schematics Paint circulation systempaint pressure level at operation Recommendations for pcs handling Circulation Lines Cleaning and Pretreatment - 1) General information Circulation Lines Cleaning and Pretreatment - 1) General information Circulation Lines Cleaning and Pretreatment -2) Rinse of new waterborne paint system after each rinse step the circulation system should be emptied with nitrogen / air, using an available pigging system; 1) rinse with butylacetate == to remove all grease and residues from pipe works; circulate appr. 10 - 15 TO; 2) rinse with butyl cellusolve == change to water soluble products; circulate appr. 10 - 15 TO; 3) fill with wb cleaning resin ( ZW 42-1100 ) == circulate appr. 10 - 15 TO; 4) rinse with DI water / cleaning solution SV99-0111 ( 9 / 1 to 4) == circulate appr. 10 - 15 TO; 5) rinse with DI water == circulate appr. 10 - 15 TO; 6) check conductivity ( 10 μS/ cm ) and filters for dirt or particles; 7) check samples for craters, contamination and other residues; if contaminated empty system and start again with step 5); in case of severe contamination step back to step 4); 8) when all checks are ok start filling with waterborne base coat; Circulation Lines Cleaning and Pretreatment -3) Removal of severe contamination Circulation Lines Cleaning and Pretreatment -4) Cleaning for WBBC colour change Circulation Lines Cleaning and Pretreatment - 5) Cleaning for change from solvent borne to water borne surfacer Circulation Lines Cleaning and Pretreatment -6) Cleaning for change from solvent borne to water borne basecoat Circulation Lines Cleaning and Pretreatment -6) Cleaning for change from solvent borne to water borne basecoat Circulation Lines Cleaning and Pretreatment -7) Cleaning of new solvent borne base coat systems Circulation Lines Shut-down of WBBC circulation lines Cirulation Lines List of Rinse Media After every step of the rinsing operat
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