Pneumatic valve flange hard seal butterfly technology parameters

Flange hard seal butterfly major parts of the pneumatic valve pneumatic valve material: pneumatic valve, cast steel, stainless steel, nickel chromium molybdenum titanium steel pneumatic valve plate: stainless steel, nickel chromium molybdenum titanium steel rod pneumatic valve: Cr, stainless steel, nickel chromium molybdenum titanium steel packing: fluorine plastic, flexible graphite with a standard flange hard seal butterfly pneumatic valve: flange connection: GB -, GB. - GB structure length: GB - pressure test: GB/T - drive mode: manual, worm transmission, pneumatic, electric flange hard seal butterfly valve performance specification: DN nominal diameter (mm) : ~ nominal pressure PN (MPa) : ~., Lb, K