Water & DesalinationDesalination
Energy recovery device (ERD) housings / rotary pressure exchanger bodies
Running clearances very tight – CMM verification mandatory. Seawater duty – PREN >40 required.
Specifications
Material
Super Duplex SS A890 Gr5A; ceramic-lined ductile iron (some legacy designs)
Material Class
Super DuplexDuctile Iron
Service Conditions
seawater
Common Processes
Investment casting (SS); green sand (DI with ceramic lining)
NDT & Inspection
Hydrostatic; PT; dimensional (bore concentricity critical for rotating parts)
Typical Specs & Notes
Running clearances very tight – CMM verification mandatory. Seawater duty – PREN >40 required.
⚠ Caveats
Running clearances very tight – CMM verification mandatory.