Perma Pure FF-250-Series Filter User Manual

Ff-250, Series filter, User manual

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PRINCIPLE OF OPERATION

FF-250

TM

is a Tradmark of Perma Pure LLC, Kynar® is a

Registered Trademark of Elf Autochem North America,
Hastelloy is a Registered Trademark of Haynes
International, Teflon® is a Registered Trademark of E.I.
Dupont.

Bulletin 221

FF-250

Series

Filter

User Manual

8 Executive Drive
Toms River, N.J. 08755
Phone: 800-337-3762

732-244-0010

Fax: 732-244-8140
e-mail: [email protected]
Web Site: www.permapure.com

PERMA PURE

FF-250™ Series Filters may be connected for
particulate only or for coalescing and particu-
late filtration. It will remove liquid droplets and
particles down to 0.1 micron with an efficiency
of 95% or greater. The thick, high capacity
borosilicate glass and Teflon filter element will
uniformly drains coalesced liquids to bottom
of housing, where they can be evacuated
through the 1/8” NPT drain port.

Coalescing filtration is achieved by forcing
gas stream through the inside of the filter
element. Figure 1 shows the flow path in a
coalescing application. In this mode, small
aerosol particles are forced together as they
pass through the fine inner layer of the filter
element. Larger drops created in this process
begin to fall out of the gas stream due to their
mass. The coarse drain layer on the outside
of the filter element assists this physical
separation.

When used in a particulate-only application,
the filter can be installed so that the gas
stream fills the filter shell first then is forced
through the element. Captured particulate
collects on the visible, outside surface of the
element. This allows visual determination of
the element condition.

Figure 1 - Illustration

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