Plunger - Needle Valve, Body: GGG50 (EN-GJS-500-7), Face to Face acc. EN 558-1 Series 15 (F5) up to DN450. Above DN500-DN1200: 1.5 * DN, Flanges acc. EN 1092-2 RF, Piston: SS-304-A2 (ASTM A351 GR CF8), Connecting Rod: SS-304-A2 (ASTM A351 GR CF8), Crank: SS-304-A2 (ASTM A351 GR CF8), Shaft: F51 Duplex 2205 Stainless Steel (22% Cr - SS ASTM A182 GR F51), Retaining Ring: SS-304-A2 (ASTM A351 GR CF8), Seat Sealing: EPDM (WRAS-DVGW W-270), Piston Guide: Bronze Overlay, Shaft Bushing: Bronze, Cap screws: A4-70 (SS-316), Vent Plug: SS-304-A2, Eye Bolt: C15. Valve Test as per EN-12266-1, Coating: Fusion Bonded Epoxy Coating RAL-5005 (WRAS-DVGW W-270), min 250 microns. NOTE: DN100-DN1200 - PN10/16/25. ON REQUEST: PN40 and DN1400-DN2000