Air Operated Double Diaphragm pumps play an important role in many
stages of chemical production and processing. From the intake of chemical
components from storage through to transporting processed products to the point
of distribution, the fluid move is an essential part of everyday operations in the
chemical industry. Whether transferring benign or hazardous material, diaphragm
pumps transfer chemicals safely and efficiently to minimize production
downtime.
A type of
positive displacement pump, AODD pumps transfer fluid by trapping a fixed
amount of that fluid and forcing or “displacing” it into the discharge pipe.
Using diaphragms and check valves, the liquid chambers are filled and emptied
by fluid that is drawn through a common inlet and discharged through a single
outlet. Employing compressed air as its power source, an AODD pump shifts
the air from one tank to the other by a linked shaft. This motion forces liquid
out of one tank & into the discharge piping while the other chamber
simultaneously fills with liquid.
Here are four
benefits of using AODD pumps in the chemical industry:
1. Versatility
AODD pumps are
renowned for their versatility and are used within chemical industry
operations. The composition and viscosity of fluids vary greatly and they
display a range of different characteristics. AODD pumps can cope with even most aggressive.
Pumps are
available in a wide range of different materials, allowing them to pump
virtually any chemical on the marketplace. The materials used to construct pump
are configured to accommodate a particular chemical’s properties.
Diaphragm
pumps are able to efficiently pump fluids with high solid content,
including those with solids up to 3 inches in diameter, such as sludge &
slurry. As a rule of thumb, if it pours, it pumps!
2. Flow rate
The flow rate
of an AODD pump can be easily adjusted by diameter and a stroke length of the
diaphragms used. The desired flow rate & potential pressure conditions will
determine the size of pump required. Manufacturers offer a range of flexible
sizes, enabling users to buy a pump that will provide an appropriate system.
Another benefit of AODD pumps is that users are able to control the pump’s
pressure discharge.
If a the compressed air supply is available, an AODD pump can be installed wherever it
is required and switched to other operations with ease. It is also
possible for an AODD pump to run dry without damaging its internal mechanisms.
3. Safety
AODD pumps are seen by many as the safest design for
pumping a range of liquids, including more aggressive chemicals. Fluids
transferred by AODD pumps are often hazardous. It is, therefore, vital to
choose the correct pump to maintain safety and environmental standards within
an organization.
AODD pumps do
not require electricity or any fuel other than compressed air. This
intrinsically safe design means that no harmful fumes are exhausted, thus
eliminating production line risks. Furthermore, they are fully sealed units,
meaning they are leak proof, which makes them ideal for handling potentially
hazardous fluids. Similarly, they can be partially or completely submerged in a
liquid with minimal risk of contamination.
4. Simplicity
AODD pumps are
constructed using a simple design, which employs minimal moving parts. Fewer
parts ensure any maintenance requirements can be completed quickly. Similarly,
a simple construction mitigates the risk of mechanical problems occurring in
the first place. Easy to install, once connected to a compressed air line, AODD
pumps are ready to use immediately.
AODD pumps do not use oil or other lubricants,
which eliminates operational issues due to lack of lubrication. When compared
with other, more complex types of pump, AODDs are easy to disassemble, repair,
clean and maintain. This simplicity ensures the production line continues to
run smoothly. Decreasing maintenance time by employing simple AODDs ensures
that daily operations continue on schedule.
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