cheminert valves
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Internal sample
Internal sample
Low Pressure Injectors and Switching Valves
Caution
Metal fittings will damage
the threads and details
of C20Z series valves
(models C22Z, C24Z,
C25Z). Use of metal
fittings in a C20Z valve
voids the warranty.
Tech tip
Our life tests indicate that
these valves will typically
give more than 100,000
cycles before requiring
any service. This assumes
that the fluid used is
free of particulates and
not reactive toward the
valve components. If
the stream may contain
particulates, or if it has
high salt content which
could precipitate within
the sample lines, use an
in-line filter.
Note:
Valves with purge
ports are available on
request.
Model C24
page 167
Model C22
page 165
Model C24Z
page 166
Model C22Z
page 164
With Valco Zero Dead Volume
(ZDV) Fittings
C20Z valves with zero dead volume
fittings (10-32 thread) are shipped with
standard PEEK nuts and ferrules. Zero
dead volume fingertight fittings and
nuts and ferrules of other materials
may be ordered separately. Standard
specifications are 100 psi gas/250 psi
liquid at 75°C. On request, the pressure
rating can be as high as 600 psi liquid.
Caution:
Metal fittings will damage
the threads and details of C20Z series
valves. Use of metal fittings in a C20Z
valve voids the warranty.
The
Model C22Z
is a conventional two
position sample injector and switching
valve, with 4, 6, 8, or 10 ports. Sample
injection requires a loop, ordered
separately.
The
Model C24Z
is an internal sample
injector, for applications in which the
sample size is smaller than that of any
available external loop. Sample sizes
available are 0.2, 0.5, and 1 µl.
With Cheminert 1/4-28
Fittings
C20 Series valve caps have female
threads for direct connection of lines –
no couplings are required. C20 Series
valves are available in 4, 6, 8, and 10
port versions. Standard specifications
are 100 psi gas/250 psi liquid at 75°C.
Multicolored Cheminert 1/4-28 flange-
less fittings for 1/16" or 1/8" OD tubing
(depending on the valve model) are
included.
Model C22
valves are used for sample
injection or switching. (Functionally
equivalent to Model C22Z) Sample
injection requires a loop, ordered
separately.
The
Model C24
is an internal sample
injector like the C24Z, available with
0.5, 1.0, or 2.0 µl sample size.
1/4-28 Int.
10-32 ZDV
10-32 ZDV
1/4-28 Int.
more information
Decoding
Cheminert valve
product no's . 264-265
Actuation
. . 186-209
Applications
. 168-169
Materials
Metals . . . . 254-255
Polymers . . . . . .256
Valve rotors . . . . 257
Valve descriptions
Cheminert
injectors . . 146-149
selectors . . 150-151
nanovolume® . . 146
Diaphragm . . . . 140-141
Valco
injectors . . . . . 99
selectors . . 100-101
Cheminert valve
prices
HPLC . . . . . 152-163
Low pressure . 164-167
Nanovolume®
. . 152-155, 170-171
Selectors . . . 170-177
OEM . . . . . 178-185
CHROMalytic TECHnology Pty Ltd AUSTRALIAN Distributors e-mail:
Tel: 03 9762 2034
