... wafer or lug butterfly valve, with various rubber seats, EPDM,NBR,VITON,PTFE,etc. very convenient Butterfly Val Rubber Butterfly ValveA/LT ... /Viton.*Pin: Stainless steel*Washer: Stainless steel/Carbon steel.*End Cover: same to body.*Lever: Malleable cast iron/Aluminum ... flange end standards, such as DIN2501, ANSI125/150, AS2129 Table D & E, BS4504,BS10D&E,JIS10K. Lug Type Rubber Lined Butterfly Valve