Dn50-dn1400 Item Name Material 1 Body Ci/di 2 Seat Epdn/nbr/viton 3 Disc Di/cf8/cf8m/Gßtaf¡ 4 Pin Ss316/ss416 5 Stem Ss416/ss304/ss316 Adoptive standard: 1. Valve design : mss sp-67 for casting steel, api609 + ansi b16.1 for di/ci. 2. Flange : ansi b16.1 class 125, din2501 pn10/16, bs4504 pn10/16. 3. Face to face :bs en 558-1, the lenth in bs en558-1 is the same in din3202/api609/mss sp-67:2002 4. Pressure test conform to api598.
