Perma Pure FF-250-Series Filter - Manual (Page 2)

PRESSURE DROP vs. FLOW
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Description Specification
Top and Bottom Materials 316 SST or Kynar®
Shell Material Borosilicate Glass or 316 SST
Maximum Temperature Shell: Kynar 120°C, SST 230°C
Maximum Pressure 30 PSIG
Dimensions 2.5" dia. X 4.0" h
Inlet, Outlet and Drain Ports 1/8" NPT Female
Center Bolt
1/4-20 x 3.25", Hastelloy® C276
FILTER SPECIFICATIONS
INSTALLATION
Figure 2 - Pressure Drop Curve
All ports are 1/8” NPT female. To use filter as a
particulate filter, connect sample to port aligned
with hole on underside of top cap. (Refer to
Figure 4)
To use as a coalescer, have sample flow inside
filter element by connecting sample inlet to other
port.
REPLACING FILTER ELEMENT
Figure 3 - Exploded View
PERFORMANCE
FF-250 filters will remove liquid droplets and
particles down to 0.1 micron with an efficiency of
95% or greater.
PART NUMBERS FOR REPLACEMENT
Bolt
Bottom Cap
Shell
Top Cap
O-ring
FF-250 filter should be checked regularly to ensure
element is in good condition. If filter element
appears to be dirty or begins to cause flow
restriction in system, it should be replaced.
1. Loosen bolt on bottom of filter housing.
2. Pull assembly apart and remove element.
3. Install glass shell onto bottom piece - a slight
twist may be necessary to get the shell over the
o-ring.
4. Place the new element into grooves in top and
bottom of housing.
5. Assemble top to shell assembly.
6. Make sure the element is seated correctly in top
groove.
7. Replace bolt through bottom piece and screw
into top piece. Tighten just enough so it does not
vibrate loose.
Figure 4 - Top Cap
Part Number Qty Description
FF-250-E-2.5G 1 Replacement Filter Element
FF-250-3 1 Replacement O-Rings, Set of 3