Extension rod butterfly valve: 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)PN1.0/1.6MPa3)Flange: ANSI B 16.1, EN 1092, AS 21294)F/F: ANSI B 16.10Brief Introduction:Butterfly valve is mainly consisted of body, stem, disc, seat and driver(lever, gearbox, pneumatic and electric Actuator) and so on. On off and controlling flow of valve are ...