Tilting Type Swing Check Valve with Lever and Weight, Flange connection acc.DIN EN 1092-2, Face to face acc. DIN EN 558, series 14 (F4), Body: GGG50 / EN-GJS-500-7, Spindle: AISI-420/EN 1.4021 (X20Cr13), Disc Sealing: EPDM, Body Sealing: Stainless Steel A2-AISI-304 (EN-1.4301), Bolts: stainless steel A2-70/SS304. Coating: Epoxy Coating RAL-5015 min 250 µm acc. RAL-GSK. All materials in direct contact with Drinking Water acc. UBA-KTW and DVGW W-270.