cheminert fittings
56
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VICI AG International Sales: + 41–41–925–6200 Fax: + 41–41–925–6201
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tech tip
For optimal zero dead
volume connections,
make sure your tubing
meets the best industry
standards. OD tolerance
should be nominal
dimension ± .002".
Fractional
Nominal
dimension dimension
1/32"
.031
1/16"
.062
1/8"
.125
1/4"
.250
3/8"
.375
1/2"
.500
Cheminert® Fittings and
Accessories
Cheminert fittings are ideally suited for applications requiring an inert, biocom-
patible, metal-free flowpath. Wetted materials are PFA, FEP, CTFE, or PEEK, and
uniform flow passages minimize mixing. All connections have zero dead volume.
more information
High pressure Cheminert
fittings . . . .pp 63-67
Low pressure Cheminert
fittings . . . . . . 68-81
Nanovolume
fittings . . . . . . 57-62
Valco fittings . . . . 6-55
High Pressure Fittings
Cheminert high pressure fittings are rated at 5000 psi with fingertight nuts, well
beyond the burst strength of most PEEK tubing. These fittings are machined
from high quality inert polymers to the same exacting tolerances as our popular
Valco zero dead volume fittings, and the taper angle and detail design conform
to the industry standard established by the Valco line.
1/32" Nanovolume Fittings
1/32" Cheminert nanovolume fittings,
with 100 µm or 150 µm bore, are
ideal for high resolution capillary
chromatography. Rated at 5,000 psi
with fingertight nuts, they will remain
leak-tight well beyond the burst
strength of most PEEK tubing. These
fittings are machined from high quality
inert polymers to the same exacting
tolerances as our popular Valco zero
dead volume fittings, and the taper
angle and detail design conform to the
industry standard established by the
Valco line.
NEW
360 Micron Nanovolume
Fittings
Our newest high pressure fittings
permit direct connection of 360
micron OD fused silica, PEEK, stainless,
or electroformed nickel tubing without
the use of liners.The ferrule snaps into
the nut so that the fitting is “one-piece”,
but the ferrule remains free to rotate
as the nut is tightened so that the tube
doesn’t twist. Because of the compact
size and fine 2-56 threads, a leak-free
connection that seals at pressures
in excess of 20,000 psi can be easily
formed with the available manual tool.
High Pressure Nanovolume® Fittings
Nanovolume generally refers to components with bore sizes of 100-150 µm
(.004” - .006"). The minimal transfer volume contributed by nanovolume
components makes them especially beneficial in applications with flow rates in
the µl/min range, when the transfer volume can be critical.
50 µm = .002"
100 µm = .004"
150 µm = .006"
0.25 mm = .010"
0.50 mm = .020"
0.75 mm = .030"
1.0 mm = .040"
1.5 mm = .060"
2.0 mm = .080"
4.6 mm = .180"
6.0 mm = .236"
6.4 mm = .253"
7.0 mm = .275"
10.0 mm = .400"
27.0 mm = 1.08"
1/32" = 0.8 mm
1/16" = 1.6 mm
1/8" = 3.2 mm
1/4" = 6.4 mm
3/8" = 9.5 mm
1/2" = 12.7 mm
10,000 psi = 689.5 bar
20,000 psi = 1,378.9 bar
CHROMalytic TECHnology Pty Ltd AUSTRALIAN Distributors e-mail:
Tel: 03 9762 2034
