Wafer type butterfly valve is widely used in industry pipe lines and productions. Size:DN25-DN1200Seat:PTFE,BNR,EPDM,VITONStem:Stainless Steel 304/316/416Packing :Soft graphiteHand Lever/Gear:Cast Iron or Ductile IronWoking pressure:PN10,PN16Top Flange:ISO 5211Flange drilling standard: BS4504, ANSI B16.5,JIS,DIN2501Surface: Electric Fussion Epoxy Powder Coated