High temperature metal hard seal ball wear-resisting pneumatic valve

high temperature metal hard seal ball wear-resisting coating spalling and pneumatic valve overcomes the heat bonding technology problem, adopting one-piece pneumatic seat design and thermal calculation, can maintain a good seal under ℃ ~ long, smooth switch, specifically for ~ ℃ high temperature of the pneumatic valve ball CARDS acerbity, packing aging, spring failure and carbide peeling and bonding difficult and developed a kind of special pneumatic valve ball, can be widely used in high temperature and high pressure, high frequency switch, high wear resistance, the easy crystallization and industrial and mining, has been widely applied in coal chemical industry, organic silicon, polycrystalline silicon, etc.
the characteristics of high temperature and hard seal ball pneumatic valve, to adopt advanced technology sphere and pneumatic seat hardening. Metal hard seal ball sphere of pneumatic valve and pneumatic seat completely use a metal to metal seal way, in order to ensure reliable pneumatic valve under various temperature and pressure seal, in view of the different operating conditions and requirements of users, you can use a variety of advanced sphere and pneumatic seat hardening technology, including spray supersonic spraying, nickel-based welding, special surface hardening, hard alloy spray welding and using high strength and high hardness of the ceramic material, such as a sphere and pneumatic valve seat surface hardness can reach more than HRC commonly, up to more than HRC. Sealing surface material heat resistance can reach ℃, the highest can amount to ℃. Material bonding strength can reach above PSI, sealing surface material also has the very good properties, such as friction resistance, impact resistance. Metal hard seal ball pneumatic valve can be applied to the vast majority of harsh working conditions.
prevent pneumatic valve up dead
high temperature under high temperature conditions caused by thermal expansion and easy to sphere with pneumatic seat up to death, leading to a pneumatic valve cannot open. Metal hard seal ball pneumatic valve adopts the disc spring or spring loaded seal structure, the parts under high temperature thermal expansion can be absorbed by disc spring or spring, it can ensure the pneumatic valve will not be up to death, at high temperatures and be able to flexibly opening and closing at high temperature.
excellent seal performance
adopt unique ball grinding process, through the sphere and the rotation of the grinding apparatus in different space position, make a sphere surface to achieve high degree and smooth finish, make the pneumatic valve sealing performance fully achieve excellent sealing performance.

high temperature metal hard seal ball wear-resisting pneumatic valve product features:
.
floating ball design.
one-piece pneumatic valve seat design. High temperature prevent spalling carbide
.
extension of the pneumatic valve stem design.
double bearing structure.
quantitative compression.
saucer reed or plate spring seal compensation. Packing for high carbon graphite or enhance graphite

high temperature metal hard seal ball wear-resisting pneumatic valve manufacturing specifications:
design standard: API/APID/ASMEB.
flange design: ASMEB. Length:
structure ASMEB.
inspection standard: API/ASMEB.

high temperature metal hard seal ball wear-resisting pneumatic valve main technical parameters:
: nominal diameter DN ~ '~' DN
nominal pressure: ANSIClass ~ ClassPN ~ PN
working temperature: ° C ~
leakage level: ANSIClassVI
drive mode: manual, pneumatic, electric, hydraulic,
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