77 20901101_EN_PC5xx-6xx_VARIO_select_Serie_V1.0_280618AppendixWetted materials8.1.2 Wetted materialsComponent Wetted materialsPumpHead cover ETFE carbon fiber reinforcedDiaphragm clamping disc ETFE carbon fiber reinforcedDiaphragm PTFEValves FFKMO-ring FKMValve terminal ECTFE carbon fiber reinforcedGas ballast tube PTFE carbon fiber reinforcedAngle piece (on the valve ter-minal) ETFE/ECTFEPumping unitInlet PBT or PPOutlet PETDistributor head (inletPC 510/610)PPS glass fiber reinforcedValve block (inletPC 511/520/611/620)PPFlow control valve (PC511/611)PTFEHousing (electromagneticvalve)PVDF / PE / PPSElectromagnetic valve FluoroelastomerHoses PTFEHose fitting ETFE, ECTFEO-ring on separator FluoroelastomerPressure relief valve at vaporcondenserSilicone rubber, PTFE filmVapor condenser Borosilicate glassRound bottom flask Borosilicate glassVACUU·SELECT SensorVacuum sensor Aluminum oxide ceramic, gold‑coatedMeasurement chamber PPSSealing ring at the sensor Chemically resistant fluoroelastomerVenting valve seal FFKM