Series pneumatic ball valves widely applicable to
industries' fluid control or adjusting control, complete a set
use with automation pneumatic meter. These industries including
natural gas, oil, chemicals, metallurgy, paper making, electrical
power, mining industry, printing, biological pharmacy, daily chemicals,
food and beverage, water treatment and air treatment .
Series pneumatic ball valves structure feature:
Pneumatic actuator: adopt new type series GT pattern pneumatic
actuator, have double action type and single action type drive
(spring reset), gear rack drive, safety and reliability£»large
diameter valves adopt series HAW pattern pneumatic actuator pluck
fork type drive, structure reasonable, output large torque, have
double action type and single action type drive (spring reset);
refer to our company's sample of pneumatic actuator.
Body structure: body of trunnion ball valve would design three
forms about cast structure, forge structure and whole welding
structure, according to users' need and different actual working
condition. Among the ball valve of whole welding structure mainly
use in the ground.
Unique seat seal structure:
Float ball valve design lip pattern spring sealing ring, guarantee
the reliability of seal, the ball valves under circumstances of
low pressure, zero-feet attack pressure, adopt to road spring
loaded seat seal structure , ensure ball valve long reliable seal.
Middle, high temperature seat material can select to contraposition
polyphony or metallic material.
Trunnion ball valve to select previous ball seal structure, after
ball seal structure or forward -back double seal structure , according
to pressure, media nature and different requirement of seal. Middle,
high temperature seat material can select to contraposition polyphony
or metallic material.
Block and excrete: when the valves close, up-down seat make
block the liquid, the impounded things in body lumen can excreting
through excretion equipment.
Automatic vent pressure structure: when the pressures in lumen
go up, lumen media can depend on itself thrust push seat and vent
pressure, thereby ensure body safe.
Reliability seal of stem: stem adopt to focusing seal down loading
structure, when the pressure of media raise up the focusing seal
will augment, so can ensure reliability seal of stem and when
the stem raise pressure ,stem can't spout.
Fire proof structure: according to working condition and users'
need, ball valve is designed fire structure. The fire proof structure
design of ball valve implement standard of API607 and JB/T6899,
in case happen the fire burning the soft seal ring ,the fire proof
structure of ball valve can prevent media leak ,and prevent fire
expand further.
Static-free structure: when operate the valve, due to friction
between ball and seat will cause static electricity and accumulate
on the ball, in order to prevent cause static spark, so set up
static equipment on valve and it will lead out the electricity
of accumulate on ball.
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