Soft seal butterfly six categories of pneumatic valve

soft sealing butterfly pneumatic valve, as a kind of used to implement the on-off and flow control components, piping system has been used in petroleum, chemical industry, metallurgy, water and electricity is widely used in many fields such as extremely. Soft seal butterfly butterfly plate installed on the diameter of the pipe of pneumatic valve. In cylindrical channels of pneumatic valve pneumatic butterfly valve body and disc disc around the axis of rotation, rotation Angle for ° ~ °, rotate to °, the pneumatic valve is fully open.

soft sealing butterfly pneumatic valve of six categories:

, according to the sealing surface material classification
soft sealing butterfly pneumatic valve: sealing pair made of nonmetal soft materials of nonmetal soft materials.
seal hard material from metal to non-metal of soft materials, metal hard seal butterfly pneumatic valve. Seal hard material from metal to metal hard material.

, according to the structure classification center of

single eccentric butterfly pneumatic valve seal gas dynamic valve

double eccentric butterfly sealing pneumatic valve triple eccentric pneumatic valve seal stamp

and classified by sealing form
forced sealing butterfly pneumatic valve: elastic sealing butterfly pneumatic valve. Sealing pressure than by pneumatic pneumatic valve plate extrusion pneumatic seat when the valve is closed, pneumatic seat or pneumatic valve plate elasticity of
plus torque seal butterfly pneumatic valve. Sealing pressure than by plus in pneumatic valve shaft torque generated
pressurized sealing butterfly pneumatic valve. Sealing pressure than by pneumatic seat or pneumatic valve plate play a packing element charging -
automatic sealing butterfly pneumatic valve. Sealing pressure produced by medium pressure automatically.

, according to the working pressure classification
vacuum pneumatic valve adjustment. Working pressure is lower than the standard heap atmosphere through the pneumatic butterfly valve.
low pressure pneumatic valve adjustment. MPa the pneumatic butterfly valve.
medium voltage adjustment pneumatic valve. - - MPa the pneumatic butterfly valve.
high pressure pneumatic valve a plate. PN for the nominal pressure. - - MPa the pneumatic butterfly valve.
ultrahigh pressure regulating pneumatic valve. Nominal pressure PN > MPa the pneumatic butterfly valve.

, according to the connection mode classification

flange butterfly wafer butterfly valve pneumatic valve pneumatic valve

branch lug butterfly pneumatic valve welding type pneumatic valve adjustment

, according to the working temperature classification
high temperature butterfly pneumatic valve.
t > ℃ the pneumatic butterfly valve temperature dish of pneumatic valve. ℃ < t < ℃
the pneumatic butterfly valve room temperature adjustment pneumatic valve. - ℃< t< ℃
the pneumatic butterfly valve butterfly pneumatic valve in low temperature. - ℃< t < - - - - - - ℃
the pneumatic butterfly valve cryogenic butterfly pneumatic valve. t＜- ℃ the pneumatic butterfly valve