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.
