... lug butterfly valve, with various rubber seats, EPDM,NBR,VITON,PTFE,etc. very convenient Butterfly Val Rubber Butterfly ValveA/LT ... test7. Wide selection of materials, applicable to various mediums8.Various of rubber seats, such as Natural Rubber, ... Viton, PTFE, Polyurethane.etc.9.We can provide various of flange end standards, such as DIN2501, ANSI125 ... &E,JIS10K. Lug Type Rubber Lined Butterfly Valve