143
Valves
V-1241-DC
V-340
V-1471-DC
MediumPressure6-Way SelectionValves
Biocompatible and inert
Low swept volume
Excellent choice for mobile phase selection
TheUpchurch Scientifc
®
6-WayMediumPressure Selection Valves have
a common inlet (or outlet) port connected to six different ports.
Two biocompatible selection valve options are available. For more
information on the Long-Life Ceramic and Economical Polymer valves,
please see the previous page.
If your application does not require all six outer ports, seal the extra
port(s) with any fat-bottom 1/4-28 plug from page 32.
Both valveoptions areavailable in three confgurations: standardmanual,
bulkhead mountable manual and actuated. A valve mounting bracket
(M-615-2) is listed on page 144. Valves can be premounted on a DC
gear motor actuator to automate valve positioning. Each actuated
valve is provided with an inline power adapter which allows operation
from 110/120V and 220/240V AC power, a RS-232 and contact closure
communication cable and a cable for multiplexing valves in series.
Part No. Description
Wetted
Material
Tubing
OD
Includes
Medium Pressure 6-Way Selection Valves, Manual
M-470
6-Way Selection Valve Ceramic 1/16”
(6) XP-235
M-471 Bulkhead version of M-470 Ceramic 1/16”
(6) XP-235
V-104
5/64” Allen Wrench (replacement)
V-240
6-Way Selection Valve
Polymer 1/16”
(6) XP-235
V-241
Bulkhead version of V-240 Polymer 1/16”
(6) XP-235
V-340
6-Way Selection Valve
Polymer 1/8”
(6) XP-335
V-341
Bulkhead version of V-340 Polymer 1/8”
(6) XP-335
medium Pressure 6-Way Selection Valves, actuated
V-1241-DC Actuated version of V-241, DC Gear (premounted)
V-1341-DC Actuated version of V-341, DC Gear (premounted)
V-1471-DC Actuated version of V-471, DC Gear (premounted)
Medium Pressure Selection Valves
#2
Mobile
Phase 1
#1
Priming
Solution
#3
Intermediate
Buffer
Solution
#4
Mobile
Phase 2
#5
Rinse
Water
#6
MeOH
6-Way Valve
Isocratic Pump
Sample Injection
Valve
Column
Data Recording
Device
Waste
Detector
Use our 6-Way Medium Pressure Selection Valve to easily select different
solvents with an isocratic pump. The setup below involves an isocratic pump
used for two separate assays, each requiring a pre-rinsing step prior to use.
Using our Selection Valve in this setup, the system can be primed with the
solvent in the frst reservoir. Then, solvent from the second reservoir can be
used as the mobile phase for the frst application. Later, the system can be
rinsed with an intermediate buffer solution from the third reservoir, followed
by switching over to the second mobile phase in reservoir number 4. At the
end of the day, the system can be rinsed with water from a ffth reservoir to
avoid the possibility of precipitation on wetted surfaces. Follow this rinse with
a fnal rinse of methanol from the sixth reservoir for system storage.
Application Note
Valve Part No. Thru-Hole
Dimensions (L x W),
excluding fttings
Port to Port
Volume
M-470
0.040” (1.0 mm) 2.75” x 1.30” (69.8 x 33.0 mm)
16.1 µL
M-471
0.040” (1.0 mm) 3.00” x 1.30” (76.2 x 33.0 mm)
16.1 µL
V-240
0.040" (1.0 mm) 2.72” x 1.24”
1
(69.1 x 31.5 mm) 16.1 µL
V-241
0.040” (1.0 mm) 2.72” x 1.24”
1
(69.1 x 31.5 mm) 16.1 µL
V-340
0.063” (1.6 mm) 2.92” x 1.24”
1
(74.2 x 31.5 mm) 18.1 µL
V-341
0.063” (1.6 mm) 2.92” x 1.24”
1
(74.2 x 31.5 mm) 18.1 µL
1
Width of the knob, which is slightly wider than the valve body
Specifcations
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