... 1) 1.5"~48" 2)PN1.0/1.6MPa 3)ISO CE 4)Factory built in 1997 Extension Rod Butterfly Valve:1) 1.5"~48"2)PN1.0/1. ... and public utilities, Building industry, Petroleum, Chemical, Steel, Metallurgy, Paper making industry, Food, BeverageDetail Specification:Extension bar butterfly valve, long ... be used as a device to cut-off or regulateO-Ring ApplyFresh water, sewage, sea water, air, vapor, food, medicine ...