valco fittings
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Valco Instruments Co. Inc. Sales:
800–367–8424
Fax: 713–688–8106
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51
Filters
Reducing filter with a removable frit
1/8" to 1/16"
(ZRUFR21F)
1/8" to 1/16"
internal reducer
for retention of frit
removable frit
cone
in liner
liner
cone in
filter body
1/8" fitting
Filters with a removable frit
These filters come with a removable 2µ frit. The standard frit can be replaced
with any frit of the proper diameter,
but not by a screen
. These filters are suitable
for streams with frequent contamination, since the filtering element is easily
changed. Standard material is Type 316 series stainless.
Patent Numbers 4,281,679 and 4,173,363
Standard
Bulkhead
Description
Bore Prod No
Price Prod No
Price
1/32" to 1/32"
0.25 mm ZUFR.5F
ZBUFR.5F
1/16" to 1/32"
0.25 mm ZRUFR1.5F
ZBRUFR1.5F
1/16" to 1/16"
0.25 mm ZUFR1CF
ZBUFR1CF
0.50 mm ZUFR1F
ZBUFR1F
1/8" to 1/16"
0.75 mm ZRUFR21F
ZBRUFR21F
1/8" to 1/8"
2.00 mm ZUFR2F
ZBUFR2F
1/4" to 1/16"
1.00 mm ZRUFR41F
ZBRUFR41F
1/4" to 1/8"
2.00 mm ZRUFR42F
ZBRUFR42F
tech tip
Should you use a
filter with a frit or
one with a screen?
Screens have much
higher flow capacity
(Cv), but frits are the best
choice for maximum
filtration or if your
application requires
Hastelloy C or titanium.
However, since they are
thicker than screens,
frits allow more mixing,
and the downside of
their superior filtration
is that they clog more
often than screens.
Note! The difference
in thickness also
means that frits and
screens cannot be used
interchangeably in
the same fitting body:
A frit must always be
replaced with a frit.
A screen must
always be replaced
with a screen.
Replacement
frits . . . . . . page 53
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