STANDARDS OF MANUFACTURE
EN 1074-1 VALVES FOR WATER SUPPLY
EN 1074-4 AIR RELIEF VALVES
EN 1092-2 (ISO 7005-2) DRILLING FLANGES
MATERIALS
BODY EN GJS-500-7 DUCTILE IRON EN 1563 (ISO 945)
COVER S235JR CARBON STEEL EN 10025
SEAT EPDM/NBR EN 681-1
FLOAT 1.4301 (AISI304) STAINLESS STEEL EN 100880-3
GUIDE BARREL AISI316 STAINLESS STEEL EN 100880-3
CORROSION PROTECTION
COATED INSIDE-OUTSIDE (MAIN BODY)
EPOXY 250 MICRONS (FBE)
CERTIFIATES
D.M. NR.174 – HEALTH DEPARTMENT (I)
WRAS
TESTING
EN 12266-1 (ISO 5208) PRESSURE TESTS