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cheminert valves
144
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VICI AG International Sales: + 41–41–925–6200 Fax: + 41–41–925–6201
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www.vici.com
Pressure ratings from 100 psi to 20,000 psi
Inert, biocompatible construction
Easy field service
Automated operation – pneumatic or electric
4, 6, 8, and 10 port and internal sample two position models
Multiposition stream selection versions with up to 26 positions
Cheminert® Injectors
and Valves
Design
The basic Cheminert design involves a
flat rotor which is engraved with slots
which connect the ports. A stator is
held at a constant, preset force against
the rotor. When repairs are required,
all that is necessary for rotor access
is the removal of two or three screws.
Remove the old rotor and replace it,
put the screws back in and tighten
them, and the valve is ready for use at
the factory-set pressure specification.
No adjustments are possible, much
less required. Other advantages of the
design include easy panel mounting,
low actuating torque, and compact
size. The flat plate design offers flow
paths for basic flow switching, sample
injection, and stream selection up
to 10 positions (26 positions in some
models).
Two position
valve descriptions,
product numbers, and prices begin
on page 146.
Selector
(multiposition valve)
information may be found on pages
150-151.
OEM injectors and selectors
are on
pages 178-185.
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
Materials of Construction
UHPLC
models have stators of
specially coated stainless steel, with
PAEK rotors.
HPLC
models have stators
of Nitronic 60 stainless steel, PAEK,
Hastelloy C, or titanium, all of which
are compatible with common HPLC
solvents. Many are available with a
proprietary long-life coating. Valcon H
rotors are used with metal stators, and
Valcon E with PAEK.
Low pressure
models have PPS stators and rotors
of Valcon E2, a proprietary reinforced
PTFE composite.
Metal valves are supplied with stain-
less nuts, with ferrules of the same
material as the stator. Fittings for
polymeric valves vary with the valve
design. The valve price lists contain
more detailed information.
Sample injection loops are available
in a variety of materials, and are found
on the pages with their corresponding
valves.
STATOR
ROTOR
CHROMalytic TECHnology Pty Ltd AUSTRALIAN Distributors e-mail: sales@chromtech.net.au Tel: 03 9762 2034