Replacing seals and gaskets is an unavoidable part of ensuring optimal function of hydraulic systems. Proper sealing goes a long way in reducing contamination in the Rexroth hydraulic pump.
However, there are steps you can take to reduce wear between
replacements and extend the life of these integrated components.
When planning preventative measures of any kind, it helps to
identify and understand the external factors that influence wear on your
system. A good understanding of why Rexroth pump
fail helps you plan ways to avoid failure and extend replacement cycles.
In this article, we will start by looking at environmental,
environmental, and compatibility factors that affect seal wear. Next, we will
comment on the indications for the correct installation and maintenance of the
seal and gasket.
The repayment period can be prolonged by first minimizing
the effects of each of the following factors and proceeding with expert care.
Environmental factors
Select seals and gaskets that meet the needs of external
forces. For example, your choices should consider these factors:
Friction
Download and compress
Pressure
Knowing these sealing and fitting dynamics will help make
the right decisions and reduce wear in the future. We cover each of them in
more detail below.
Let's look at two types of friction: excessive friction and
excessive friction during running.
Excessive friction can cause high hydraulic pressure and
excessive friction during operation can cause heat and swelling. The important
facts to know are that penetrating friction decreases as sealant, gasket, or
O-ring stiffness decreases, and friction during operation decreases as sealant,
gasket, or gasket stiffness increases. Tori
Environmental Factor
#2: Pregnancy and Stress
The next consideration is the load and pressure, and the
springbuck required to return the tampons to their original shape. Load
tolerances must be considered for all parts in contact with sealing
applications to create a solid seal.
Also, springbuck must be observed once the compressive force
is removed to prevent compression set (which is the failure of the seal to
return to its original shape).
Environmental Factor
#3: Stress
Higher pressures, especially those above 5,000 psi, require
special seals with a higher modulus of elasticity and stiffer materials. If the
part material cannot withstand the increased high pressure, it can quickly
cause wear that can lead to premature failure, leaks, and system contamination.
Other options for O-ring selection may be considered, such
as using replacement O-rings or reducing diagonal clearance. Learn more about
this here.
Surrounding factors
Environmental conditions that should be examined as part of
creating your Eaton hydraulic valve Rexroth a4vg
corrosion prevention plan include the following three items:
Temperature
Radioactive contamination
Exposure to ultraviolet rays
Considering these factors when choosing materials and
designs will help you choose components that better resist wear and tear and
increase the time between replacements.
Here's why it's important to consider these factors and
their negative effects when choosing seals and gaskets:
Temperature – Excessive heat will cause the material to
swell and harden, while cold temperatures can cause shrinkage and leakage.
Contamination: Contamination from hydraulic fluids, such as
metal chips, can damage seals and gaskets.
UV Exposure – Rubber materials can crack, lose elasticity,
fade, and disintegrate with continued exposure to UV rays (from the sun, lamps,
or even lasers)
Compatibility factors
Regardless of knowledge of external and local factors, if
seals and gaskets are chemically incompatible, early wear is evident.
Make sure the product is compatible with the sealing and
gasket materials to avoid this, and always choose the materials that offer the
best chemical resistance.
You'll want to know what specific chemicals are in your
hydraulic system, and be sure to choose a design that protects against harsh
chemicals (such as strong acids or alkalis). A good material compatibility
guide will help with this decision.
Installation and maintenance
Proper installation and maintenance of Rexroth valve and seals is vital to their longevity.
After selecting the appropriate gasket or seal that meets the environmental,
environmental, and machine compatible needs, installation and maintenance
procedures must be determined.
Seals
The installation procedure may vary depending on the nature
of the seal application. However, it is universally known that some initial
tips increase the life of a part after correct installation.
Before installing:
Have the proper tools on hand to avoid dents or damage.
Be sure to clean the stamps with a lint-free cloth.
Protect seals from sharp corners and burrs
Lubricate the seal and its sealing path
Heating seals to lubricate and improve flexibility
Regular lubrication checks are recommended to ensure that
the material can withstand environmental and environmental factors.
Boards
Procedures for installing gaskets correctly include:
Align flange faces and screw holes and check for
irregularities
Carefully insert the gasket between the dry lips
Make sure that the gasket is placed in the middle between
the flanges
Assemble the flanges together, making sure the gasket is not
compressed or damaged.
Keep the gaskets handy and clean them with a soft towel or
sponge in warm, soapy water every week. Do not use bleach, degreasers,
disinfectants, or commercial washers.
Finally
These maintenance and installation tips, along with the
proactive and well-planned selection of materials that meet the needs for
friction, load, pressure, temperature, contamination, and UV exposure, will
dramatically reduce damage and increase Rexroth hydraulic
valve efficiency and overall performance.
By taking the time to consider these factors, as well as
seal and gasket material compatibility, and maintaining parts function, wear
between replacements can be reduced. This will increase cycles between
component replacement and reduce the chance of hydraulic system failure.
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