Eccentric hemisphere pneumatic valve replacement pneumatic ball valve, gate valve, pneumatic valve and butterfly Pneumatic pneumatic valve

a using eccentric -- chocking principle, structure. Pneumatic valve and pneumatic rotary valve core center ( The pneumatic valve stem axis) And pneumatic valve core sealing spherical geometric center offset a radial size, also with pneumatic valve seat sealing surface has a bias in pneumatic valve body channel axis dimension, sealing pair under external force for the metal to metal contact, achievement by two eccentric pneumatic valve self-locking closed, the reasonable choice of eccentric makes latching Angle is less than the friction Angle, Angle of self-locking chosen too small to shut down easy, open, difficult Angle choose big, although the open force is small, but close the torque increases rapidly, test rig of trial and error, determine the two reasonable collocation of eccentricity to important and reliable self-locking performance to ensure the sealing tightness. This is the core of the hemisphere pneumatic valve technology, from the structure principle, through the manufacturing methods to achieve the best sealing, pneumatic ball valve, pneumatic butterfly valve, brake pneumatic valve, pneumatic valve up to now, there are inferior.
2, easy to implement and maintain zero leakage for a long time. Pneumatic valve core and pneumatic valve seat seal is spherical line contact, by eccentric realize self-locking, seal the opening and closing the whole process of barely touch, only at the instant of the opening and closing, will contact and brake tight zero leakage, ensure no leakage point of dynamic and static seal. Pneumatic scaling or other debris on the seat, pneumatic valve core in the process of contact with pneumatic valve seat, has powerful to remove fouling can force. Pneumatic valve sealing surface of the brake in the opening and closing of the frequent reciprocating motion, mixed flow medium scale deposition in the lower part of pneumatic valve body cavity, the achievement by the positive pressure pneumatic valve completely sealed, pneumatic seat scale without cleaning ability, the packing often repeated wear cause brake pneumatic valve, globe inside leaking leakage of pneumatic valve. Pneumatic ball valve by pneumatic sealing seat extrusion on the sphere for a long time, it is hemisphere pneumatic valve must wear fast, butterfly pneumatic valve seal is rubber for mediation, it a hemisphere pneumatic pneumatic valve, pneumatic ball valve, gate valve, metal hard seal performance. Hemisphere pneumatic valve use for a long time, the pneumatic valve seat also can produce trace wear and tear, it may continue to use by adjusting, pneumatic stem and packing in the process of opening and closing the valve stem rotation °, there were signs of leak, compression packing gland bolts again a few, packing place no leakage can be realized, and the other is still the small leak force with pneumatic valve, large leakage in the pneumatic valve.
3, operation is extremely light. Eccentric hemisphere pneumatic valve opening and closing process of the whole seal in the undamped idling state, almost all the external force is only in the opening and closing moments from or compression, and pneumatic valve stem only ° rotating light and fast, convenient operation, of course. Pneumatic ball valve in the opening and closing process is the enclasp force on both ends of the pneumatic valve seat under operation, it is hemisphere pneumatic valve opening and closing torque, the greater the nominal diameter of open-close torque, the more obvious difference, butterfly pneumatic valve opening and closing is to overcome the deformation of the rubber, torque is bigger. Pneumatic valve, globe pneumatic brake valve operating time is long and arduous.
4, long service life. Sealing pair belongs to bimetal, different USES of surfacing alloy on the mother, after special heat treatment, its mechanical performance and good physical and chemical indicators of the state, to satisfy different working conditions, Strong wear, wash quickly, severe corrosion medium etc. ) Need of pneumatic valve seat was slightly lower than the pneumatic valve core hardness, different material and different heat treatment process, need to seal the deputy of the hardness of HRC above, still can ℃ high temperature resistant. Practice has proved that its ability to resist corrosion and anti-seizure is stainless steel sealing pair of times, pneumatic valve opening and closing of thousands of times without failure, prolong the service life.
5, wide application range. Widely used in non-ferrous smelting, the pulverized coal injection of gas natural gas, iron and steel slag and dust removal, electric power, harmful gases, Hydrogen sulfide, phosgene, etc. ) And oil ( Heavy fuel oil, crude oil, residual oil, etc. ) Smelting and transmission. It has wide scope of application, mainly because of sealing pair of different surfacing alloy respectively, make it a double gold, pneumatic valve, pneumatic valve stem and other main parts adopt the needed materials, to satisfy different working conditions, a Shanghai engineering pneumatic valve a variety of products.
YAZE( Pneumatic company's main products: pneumatic pneumatic valve pneumatic ball valve pneumatic butterfly valve pneumatic actuator