Pneumatic control vavle Low sound level, Easy assembly Excellent sealing and control characteristic pneumatic diaphragm control valve widely used in chemical, power plants, light industry, textile, metallurgical industrial production. pneumatic diaphragm control valve Type:Straight globe valve body End Connection:Raised Face (RF) & Ring Type Joint (RTJ ) according to ANSI B16.5 or other flange connecting type. Normal Diameter:1"~8" Pressure Rating: ANSI Class 150lb, 300lb,