(816-F) Ductile Iron Gate Valve, NRS, DIN3352 F4, DI with EPDM Coated Wedge, s/s stem. PN16 1.Conforms to DIN33522.Flanges dimensions conform to DIN2532/2533 & EN10923.Face to face dimensions conform to DIN3202 f4/f54.Nominal pressure:1.6mpa 5.Shell test pressure: 2.4mpa 6.Sealing test pressure:1.76mpa 7.Suitable medium:water 816-F Ductile iron resilient seat NRS gate valve/DIN3352 gate valve