Lube Design High Viscosity Element Upgrades0 pages

Hy-Pro G8 Dualglass
High Performance DFE Rated Filter Media
Hy-Pro Media Lube
Design Modification
Lube Design Media Pack
Lube Applications
In some lube systems (ie paper machine main bearing
lube) the fluid viscosity is high (i.e. ISO VG220) and the
alarm for terminal differential pressure is relatively low
(i.e. 15 psid, 1 bar). In such applications the lube
design might yield longer element life because the
clean element plays such an important role in overall
element life. If the same system had a terminal
differential pressure of 50 psid, 3.5 bar the standard M
pack design would yield a longer element life than the
lube design.
Hydraulic Applications
In some hydraulic systems the housing might be sized
close to its maximum rated flow. In such cases the
clean element differential pressure might be > than 15
psid, 1 bar. If this is the case the lube design will
provide a lower clean element pressure drop and might
be more suitable. Also, if the intent is to upgrade to a
filter element with higher efficiency to achieve a lower
ISO code the lube design might be required to avoid
excessive clean element pressure drop. For example if
the original element specified by the OEM was a 10
micron absolute and that element is replaced with a 3
micron the clean element pressure drop could
double. In this instance the lube design could provide
enough of a decrease from the standard M pack design
to make the change possible.
Dualglass Media Lube Design Modification
Hy-Pro DFE rated Dualglass media filter elements are
optimized for capture and retention efficiency and long
element life. When upgrading from some element
manufacturers to Hy-Pro the clean element pressure
drop experienced with the Hy-Pro element may be
slightly higher. The Hy-Pro standard design with M
media code (HP__L_-_M_ ) typically yields a drop
(improvement) of one to two codes in each particle size
of the ISO fluid cleanliness codes (4/6/14). In most
hydraulic and lube applications the Hy-Pro element will
also last longer than the original once it has cleaned up
the fluid and achieved a clean fluid equilibrium.
There are some applications where the standard
Hy-Pro media pack element design (HP__L_-_M_ )
clean pressure drop results in element life that is
shorter than optimum. For these applications Hy-Pro
has developed an alternate media pack design called
the lube design denoted by replacing the M in the
standard design with an L (HP__L_-_L_ ). The lube
design will result in a lower clean element pressure
drop because the glass pre-filter layer has been
removed allowing a higher pleat count and lower flow
resistance because the fluid only passes through a
glass media layer and there are more pleats.
www.filterelement.com
Ph 317.849.3535 HY-PRO FILTRATION
An option for high flow lube systems with low
terminal element differential pressure indicator
alarm and bypass settings ( ~15 psid, 1 bar).
Lube design can extend element life (paper
machine lube systems)
May be suitable for hydraulic systems where
original housing is undersized or when
upgrading to a higher efficiency media grade
to improve ISO codes.