Water & DesalinationDesalination
Seawater intake screen housings / traveling screen frames
Sea water service: chloride resistance critical. NACE MR0175 or equivalent for SS grades. FBE or rubber lining for DI in SW service.
Specifications
Material
Ductile Iron EN-GJS-500-7; Super Duplex SS ASTM A890 Gr5A (aggressive SW)
Grades
EN-GJS-500-7
Material Class
Super DuplexDuctile Iron
Applicable Standards
ASTM A890 Gr5ANACE MR0175
Service Conditions
seawaterchloride
Common Processes
Green sand (DI); resin sand / investment (SS duplex for corrosive SW)
NDT & Inspection
Hydrostatic test; VT; PT (SS); dimensional
Typical Specs & Notes
Sea water service: chloride resistance critical. NACE MR0175 or equivalent for SS grades. FBE or rubber lining for DI in SW service.
⚠ Caveats
Sea water service: chloride resistance critical.