Water & DesalinationTransmission Pipeline
Gate valve body & bonnet (mainline isolation, DN50–DN600)
EN 545 / ISO 2531 for DI. AWWA C500 (US). FBE internal coating to NSF 61 / WRAS for potable. Buried: zinc + bitumen external. EN 10204 3.1 cert minimum.
Specifications
Material
Ductile Iron EN-GJS-500-7 (PN16–PN25); Carbon Steel ASTM A216 WCB (PN40+); SS CF8M for aggressive service
Grades
EN-GJS-500-7;WCB;CF8M
Material Class
Ductile IronCarbon Steel
Applicable Standards
WRASEN 10204ASTM A216EN 545ISO 2531AWWA C500
Common Processes
Green sand (DI); resin sand / furan sand (steel); shell moulding (small bonnets)
NDT & Inspection
Hydrostatic body & seat (EN 12266-1); VT (100%); MT (DI/steel); PT (SS); dimensional
Typical Specs & Notes
EN 545 / ISO 2531 for DI. AWWA C500 (US). FBE internal coating to NSF 61 / WRAS for potable. Buried: zinc + bitumen external. EN 10204 3.1 cert minimum.