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Appendix
Wetted materials
8.1.2 Wetted materials
Component
Wetted materials
Pump
Housing cover
Aluminium alloy
Head cover
Aluminium alloy (AlSi12)
Diaphragm clamping disc
Aluminium alloy (AlSi12)
Diaphragm
FPM
Valves
FPM
O‑rings
FPM
Small flange
Stainless steel
Hose fittings
ETFE/ECTFE
Hoses
PTFE
Inlet
Aluminium alloy
Suction/pressure distributor
Aluminium alloy
Outlet
PP
Silencer
Anodized aluminum / PTFE / PTFE
carbon reinforced / spring steel
VACUU·SELECT Sensor
Vacuum sensor
Aluminum oxide ceramic, gold‑coat‑
ed (if applicable)
Measurement chamber
PPS
Small flange
PP
Sealing ring at the sensor
chemically resistant fluoroelastomer
Hose nozzle
PP