Orbit ball valve of 2"-24" CL150-2500,forging and casting, cs and ss material
Material of orbit ball valve: CF8M, LF2,A105,WCB,WC6,LCB304,316,304L.316L,CN7M,904L
Size of orbit ball valve: 2inch(DN50) - 24 inch (DN600)
Pressure of orbit ball valve: 150LB(PN16)-2500LB(PN420)
Connection type: Flange(RF,FM,RTJ) and BW or SW
Kind of drive: Wrench,Gear,Electric actuators and pneumatic actuators
Operating temperature: -196℃ - 425℃
Working medium : water, gas,oil,Sulfuric acid and hydrochloric acid
Orbit ball valves from our company is mainly used in pipeline and industry system and it has a top entry and on line maintenance function.It has a lot of advantages,such as small fluid resistance,simple structure,small volume,light weight,sealing face are stand wear and tear eliable saaling,convenience for operation and maintenance,open and close quickly,as well as start and close flexibly.
When the trunnion ball valve be used normally, it sealed by seat and ball surface, seat retainer sealed by O-ring and body, these are soft sealed, reliable sealing. When the seat and O-ring are burnt, the seat retainer and ball will be metal to metal sealed directly, Also the seat retainer and body will be sealed by expanded graphite, thus act the anti-fire purpose.
When the floating ball valve be used normally, it sealed by seat and ball reliably. When the seat is burnt, the body moved and metal to metal sealed with ball directly, thus act the antifire purpose.
In order to act anti-fire safe, the valve other connective position all have the anti-fire sealing ring.
In order to prevent friction between ball and stem and PTFE that generates static electricity which may light the combustibles and explosives that cause an accident, in this ball valve, static-conduction spring is set between the stem and the ball, the stem and the body. Thus static electricity is conducted to ground and system safety is secured.
- Sealed construction of vavle body free of body leakage
The connective position of valve body and bonnet is double sealed by gasket and O-ring, on this base, such factors as fire, high temperature, shock and uneven opening or closing of the torque all can't induce external leakage.
With years of manufacturing experience, double sealed structure of elastic seat was designed. When the pressure going up, the T value will be increased continuous, it will act good sealing performance under the codition of low pressure, high pressure and vacuum.
- Emergency sealing (For trunnion ball valve only)
When the sealing of stem or seat is damaged to induce leakage, the compound can be used to do the secondary sealing.
- Seat spring protective structure (For trunnion ball valve only)
With the spring protection, the impurity can't enter into spring hole, thus protect the spring from impurity.
- Double block (For trunnion ball valve only)
The single valve is installed in front of sealant fitting, double sealing, reliable sealant, the body safety is secured.
- Double bleed (For trunnion ball valve only)
The valve is installed NPT drain valve and release valve, it can be released pressure and cleaned during the operation of valve.
Can offer various connection: RF, RTJ, BW, NPT, Wafer, etc.
The self-lubricated bearings are installed ot the friction of stem, resulting in wear resistance, flexiblility of operation and low torque.
The valve top work dimension is designed according to ISO 5211, which is convenient for connection and exchange of various drivers. The common driving types are manual, worm gear, pneumatic, electrical, hydraulic.
For the underground installed valve, the stem can be lengthened and for the convenience of operation, the corresponding compound injection nozzle, drainage valve and release valve can be extended to the top of the valve.
When the body pressure going up un-normally as the unstable factor, the trunnion ball valve downstream seat will be pushed by un-normally pressure, and release the unnormally pressure automatically, it doesn't damage to the sealing of upstream seat. The un-normally pressure which in the floating ball valve body will release the pressure into the upstream pipe directly, it doesn't damage to the sealing of the downstream seat.