Choose The Right Flexible Rubber
Bellows for Pumps
Introduction
Flexible rubber bellows or expansion joints are
an essential component of industrial equipment
found in nearly every industry. These flexible
rubber bellows are used to protect the rod,
piston, or other moving elements from frictional
damage, contamination, and/or danger. Given
the importance of the part and the application
requirements, selecting the proper material and
design for the expansion joint bellows is critical.
This selection guide provides a few guidelines for
selecting the best flexible rubber bellows for your
application.
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Tips for Selecting Flexible
Rubber Bellows
When selecting bellows or expansion
joints for your machine, consider
their exposure to temperature,
friction, chemicals, and so on. The
following are the steps to take when
selecting rubber bellows.
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Examine The Surrounding
Environment
The bellows is covering moving
parts that may be exposed to high
temperatures, oil, chemicals, or
other environmental factors that
will necessitate material or part
design changes. Make a list of
everything that could have an
impact on performance or cause
failure.
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Recognize Joint Movement
Joint movement causes friction,
heat generation, and wear and
tear. The flexible rubber bellows
are mounted to reduce the
system's impact from these
factors. Understanding these
forces will assist you in ensuring
that the bellows meet your
requirements.
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Take into account Sealing
Requirements
As bellows expand and contract,
they can trap air and balloon out, or
create a vacuum and suck down on
the shaft if a closed system is
created. To avoid these problems, it
is often necessary to create an air
exchange in the system. It may be
as simple as incorporating an air
admittance tube into the assembly.
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Consider Attachment
Requirements
How will the bellows be attached on both
ends? Reduce the difference in the type
and size of the ends to help control costs.
Ends can be as simple as a smooth cuff or
as complex as a custom flange tapped
with mounting holes.
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Outside Dimension
Requirements
It's easy to forget that your ideal part has to
fit inside your footprint, especially if you have
a high expansion ratio requirement. The
greater the difference in length between the
minimum and maximum, the greater the OD
of the bellows.
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In addition to following the guidelines outlined
above, you should purchase your flexible
rubber bellows, sleeves, and boots from a
reputable manufacturer such as Crushproof
Tubing. For almost any application, the
company provides high-quality expansion
joints, rubber sleeves, and boots.
Reference: shorturl.at/hX129
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Address: Shop No 2 & 3, Al Maktoum Street, Deira, Dubai, UAE
Phone Number: 97142216819
Website: https://rzbmco.com/
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