Introduction of welding type pneumatic valve, hard seal butterfly 3)

a, DH pneumatic valve product overview of type hard seal butterfly
adopts precision J elastic sealing ring and triple eccentric metal hard seal structure, multi-level factory on the basis of introduction to foreign advanced technology. Is widely used in medium temperature ℃ or less electric power, petrochemical, metallurgical, and water supply and drainage and municipal construction and other industrial pipelines, used to adjust flow cutoff and body. The pneumatic valve adopts the three eccentric structure, pneumatic valve seat and disc plate sealing surface are made of different hardness and stainless steel has good corrosion resistance, long service life, the army post two-way pneumatic valve sealing function, products comply with GB/T - Pneumatic valve pressure test specification.
2, DH for welding hard seal butterfly characteristics of pneumatic valve
this design make the application of pneumatic valve for high temperature and high pressure, fire bubble level ideal hard seal butterfly pneumatic valve seal. Using triple eccentric butterfly pneumatic valve pneumatic valve is top process.
the pneumatic valve and pipeline plane to achieve permanent zero leakage. As a result of welding structure.
and the pipe insulation bandaging has brought great convenience and beautiful. The pneumatic valve flange.
3, DH for welding hard seal butterfly main technical parameters of pneumatic valve
nominal menstruation DNmmDNmmin
nominal pressure PNMPa strength test ( 。 PN sealing test ( 。 PN
applicable temperature of the carbon steel: - ℃ ~ ℃ stainless steel: - ℃ ℃ ~
applicable medium water, steam, hot water, oil
drive worm gear drive, electric, pneumatic, hydraulic pressure
grade class ANSILb/PN
welding specification GBANSIBDIN
4, DH hard seal butterfly major parts of the pneumatic valve for welding type data parts name

pneumatic body of carbon steel, stainless steel, chromium steel aluminum
butterfly plate of carbon steel, alloy steel, stainless steel
pneumatic seat stainless steel, cobalt base carbide

collar stainless steel pneumatic valve stem stainless steel and special materials flexible graphite

filler, BYDH/H/H / - five / / / / CPR for welding hard seal butterfly pneumatic valve connection size
nominal given. it mainly size nominal given. it mainly size
inDNmmLHHinDNmmLHH