STANDARDS OF MANUFACTURE
EN 1074-3 CHECK VALVES
MATERIALS
BODY
FIG.530 – S235JR CARBON STEEL EN 10025
FIG.545 – AISI316 STAINLESS STEEL EN 10088-1
DISC
FIG.530 – S235JR CARBON STEEL EN 10025
FIG.545 – AISI316 STAINLESS STEEL EN 10088-1
O-RING SEAT
FIG.530 – EPDM EN 681-1
FIG.545 – FKM
CORROSION PROTECTION
ELECTROLYTIC ZINC-PLATED
CERTIFIATES
D.M. NR.174 – HEALTH DEPARTMENT (I)
TESTING
EN 12266-1 (ISO 5208) PRESSURE TESTS
GRADE “A”