Pneumatic valve flange hard seal butterfly performance difference

flange hard seal design adopts the principle of triple eccentric butterfly pneumatic valve, open the seal or separation, close contact with the seal, sealed performance is reliable.
flange hard seal butterfly pneumatic valve is suitable for electricity, heat, high temperature gas, combustible gas and hot air, urban heating, water supply, sewage treatment, chemical industry, metallurgy, sugar, paper making, shipbuilding, aviation, iron and steel enterprises.
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
pneumatic valve stem: Cr, stainless steel, nickel chromium molybdenum titanium steel
packing: fluorine plastic, flexible graphite
flange with a standard hard seal butterfly pneumatic valve:
flange connection: GB. - ,GB。 - GB
length: GB -
pressure test: GB/T -
drive mode: manual, worm transmission, pneumatic, electric
flange hard seal butterfly pneumatic valve performance specification:
DN (nominal diameter Mm: ~
nominal pressure (PN MPa：. ~。 磅,K