Check valve, type PA-4150, soft seated, with lever and counterweight

Check valve with flanges, flange connection: DN 50 - 150: PN 16, DN 200 - 300: PN 10 or PN 16,
inside stem, face to face according to EN 558-1 series 48 (F6),
body: EN-GJS-500-7 (GGG-50), EKB-coating min 250μm according to GSK,
disc: EN-GJS-500-7 (GGG-50), EPDM covered
Type PA-4150.125.E: shaft: AISI 420
Type PA-4150.126.E: shaft: stainless steel AISI 316