Product Details
Product
Introduction
The KQ641F pneumatic floating ball
valve is a valve perpendicular to the channel 90 degrees. It is
composed of a piston-type double-acting or single-acting
pneumatic actuator and a ball valve structure. The accessories
are solenoid valve, air filter, limit switch. It can
automatically adjust the control or two-position cut-off control
of the fluid medium in the industrial
pipeline.
Pneumatic ball valve is composed of
actuator and ball valve. The execution speed of pneumatic
actuators is relatively fast, so it is usually also called
pneumatic quick cut-off ball valve. Pneumatic ball valves are
usually equipped with various accessories, such as solenoid
valves, air source treatment triplets, limit switches,
positioners, control boxes, etc., to control or remotely control
the valve. People can open and close of the valve in the control
room, which is convenient and reduces more
cost.
The pneumatic ball valve only needs to
use a pneumatic actuator to drive the valve to rotate 90 degrees,
and can meet the function of cutting off and opening the flow of
the medium. And It only needs a small turning torque to close
tightly. The straight inner cavity of the valve provides a direct
flow path with little resistance for the medium. It is generally
considered that the ball valve is most suitable for direct
opening and closing. The main feature of the ball valve is its
compact structure, easy to operate and maintain, suitable for
general working media such as water, solvents, acids and natural
gas, but also for media with harsh working
conditions.
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Body Material: WCB(more
details please check the follow drawing)
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Surface material: Carbon
steel: epoxy resin
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Applicable medium:
gas
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Type: floating ball
valve
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Drive mode:
pneumatic
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Diameter:
DN15-200mm
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Nominal Pressure:
1.6-64MPa
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Design temperature:-29ºC~
+121ºC
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Connection type:
flange
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Design Standard:
GB/T12237-2007
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Structure&Length
Standard: GB/T12221-2005
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Flange Standard: GB /JB /
HG / DIN
Installation&Maintenance
The ball
valve has been tested for various performances such as strength,
sealing, and switching according to the "valve inspection and
test" standard before leaving the factory, so as to meet the
requirements of the standard, and remove the oil and debris
inside and outside the valve cavity. Both ends are sealed with
caps.
Before
installation, the user should check carefully whether the content
of the nameplate is in accordance with the conditions of use. It
is not allow to install and use the valve with over pressure and
over temperature grade.
Before
installation, KMO recommends that the caps at both ends of the
inlet and outlet should be removed, and check carefully whether
there is dirt adhering in the valve cavity. At the same time,
checking whether the bolts, nuts and packing glands of the
connection parts of the valve are loose. If they are loose, they
should be tightened.
Connect
the ball valve to the pipeline according to the designed
connection method. After fixing, the valve should not withstand
large tensile, compression, bending and twisting stresses to
avoid damage to the valve.
The
transmission mode of the ball valve includes manual, worm gear
transmission, pneumatic, electric, hydraulic and other driving
methods. Wrench (or handle) is used for manual operation.
Pneumatic, electric, hydraulic, etc. are installed corresponding
drive devices above the ball valve. Please refer to the drive
device manual for specific matters.
The wrench
(handle) can be turned 90° to open and close the ball valve. Turn
the valve stem clockwise to close the valve and turn
counterclockwise to open the valve.
For manual
ball valves, the top of the valve stem has a groove indicating
opening and closing, and the top of the ball valve also has a
limit mechanism indicating the opening and closing state. When
the wrench (handle) and the groove are in line with the pipeline,
the ball valve is in the open state. Conversely, when the wrench
(handle) and the groove are perpendicular to the pipeline, the
ball valve is in the closed state.
The ball
valve should be stored in a dry and ventilated place, and outdoor
storage is not allowed. Channels at both ends are blocked with
heads to prevent debris from entering.
During
storage, the ball valve should be fully open to protect the ball
sealing surface and the valve seat sealing surface.
If the
ball valve is in a status of long-term storage, it should be
regularly checked to remove the dirt in the inner cavity and
grease the processing surface.
If the
ball valve is installed in the pipeline, it should be checked
regularly to make sure everything is normal. If there is any
problem, you need to repair it immediately.
When the
ball valve used is disassembled and reassembled, KMO reminds that
it must be inspected and tested in strict accordance with the
relevant national standards and issued with a certificate before
it can be used again.
When there
is medium pressure in the ball valve, it is strictly forbidden to
replace or add packing, and it is strictly forbidden to
disassemble any parts on the valve and loosen any strong parts,
otherwise it may cause an accident.
The
storage, use, maintenance and troubleshooting of valves shall be
recorded in detail.
It is not
allow to weld, maintain or place parts under the state of valve
under pressure.




FAQ:
Q: Are you manufacture or trading company?
A: We are manufacture and our factory is in in Oubei Town,
Yongjia County, Wenzhou City, Zhejiang Province.
Q: What is your products' MOQ?
A: 10pcs.
Q: Can you provide the sample for free?
A: Yes, we can provide the sample for free, but you need bear the
delivery cost.
Q: If products have some quality problem, how would you deal
with?
A: We will responsible for all the quality problems.
Q: If the product can be customized?
A: Yes, just let me know if you have any requirements, like
applicable medium and size, etc.