Fixed Ball Valve
Connection Form: Flange
Channel: Straight Through Type
Structure: Fixed Ball Valve
Type: Fixed Ball Valve
Material: Carbon Steel, Stainless Steel.
Export Markets: Global
HS Code: 8481804090
1. Forged ball valve feature
The forging material can ensure sufficient rigidity and strength
under maximum rated operation pressure without inherent flaw of
cast. Enough wall thickness of separate body and adaptation of
high strength tie bolts are convenient for valve maintenance and
sufficient to bear the stress of pipe. The internal parts of
valve are carefully designed and selected to ensure reliability
under all kinds of work condition.
2. Anti-fire safe design
When the trunnion ball valve be used normally, its sealed by
seat and ball surface, seat retainer sealed by O-ring and body,
this is soft sealed and reliable sealing. When the seat and
O-ring are burnt, the seat retainer and body will be sealed by
expanded graphite. Thus act anti-fire safe purpose.
3. Anti-static device
In order to prevent friction among ball, 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.
4. Free leakage of body Sealed construction
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.
5. Low torque in operation
The self-lubricated bearings are installed at the friction of
stem, resulting in wear resistance, flexibility of operation and
6. Double block&bleed(DBB)
When ball is full open or close position, the transmitter
substance in center cavity of body can be released by drainage
and emptying devices. In addition, the over loaded pressure in
the center cavity of valve can be released to low pressure end
by self relief seat.
7. Emergency sealing
Compound injection holes are designed and compound injection
valves are installed at locations of stem/cap and body support
of side valve. When sealing of stem or seat is damaged to induce
leakage, the compound can be used to do the second time sealing.
A concealed check valve is installed in side of each compound
injection valve to prevent compound from out flowing due to the
action of transmitter substance. The top of the compound
injection valve is the connector for fast connection with
compound injection gun.
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