Application 1 Face to face is according to DIN3202-F1 2 Flange drilled is according to DIN2532/ 2533 Test Working pressure PN10 PN16 Shell pressure 15bars 24bars Seat pressure 11bars 17.6bars Main Parts and Materials Number Part Name Material 1 Body Cast Iron/ GG25 2 Bonnet Cast Iron/ GG20 3 Disc Ductile Iron/ GGG40 4 Seat Stainless Steel/ X5CrNi189