STANDARDS OF MANUFACTURE
EN 1074-3 CHECK VALVES
EN 558 S16 FACE TO FACE
MATERIALS
BODY
EN GJL-250 CAST IRON EN 1561
EN GJS-400-15 DUCTILE IRON EN 1563
A216 WCB CARBON STEEL ASTM A216
AISI316 STAINLESS STEEL EN 10088-3
DISC
EN GJS-400-15 DUCTILE IRON EN 1563
A216 WCB CARBON STEEL ASTM A216
AISI316 STAINLESS STEEL EN 10088-3
BRONZE-ALUMINUM
STEM
AISI304 STAINLESS STEEL EN 10088-1
SPRING
AISI302 STAINLESS STEEL EN 10088-1
SEAT
BUNA-N (OPT. EPDM – VITON)
CORROSION PROTECTION
COATED INSIDE-OUTSIDE
(FBE) EPOXY 250 MICRONS
CERTIFIATES
D.M. NR.174 – HEALTH DEPARTMENT (I)
TESTING
EN 12266-1 (ISO 5208) PRESSURE TESTS
GRADE “A”