... ) Provided with original sealant washer for convenient installation8) Good regulation performance, with the flow of medium easily controlled by changing the ... (2 1/2"),DN80(3"),DN100(4"),DN125(5"), DN150(6"), DN200(8") 11) Rated working pressure: 1.6Mpa 12) Strength ... environment: clean water, foam liquids Clamp Butterfly Valve,Butterfly,high performance butterfly valve,fire fighting equipment