Operating Instructions
Type 70 High Pressure Switching Valves
Model 7010 Sample Injector
1.0 DESCRIPTION
Rheodyne’s Type 70 valves are high
pressure switching valves: 7000, 7000L,
7030, 7030L, 7040, 7040L, 7060 and 7060L.
Unless otherwise indicated, statements about
non-L models apply also to the L models.
Model 7010 is a sample injector. An
accessory Loop Filler Port (P/N 7012) is
needed to load sample into Model 7010. If
your valve is to be operated with a Rheodyne
actuator, refer also to the separate actuator
instructions.
Figure 1 shows a schematic flow diagram
of each of the switching valves. The circles
represent the ports in the valve stator. The
dark grooves are the connecting passages in
the rotor seal.
Rotation of the valve shaft through 60°
switches the valve from one position to the
other. Models 7010, 7000, 7030, and 7040
are two-position valves with stops that
restrict the rotation of the valve to 60° turns.
Model 7060 is a six-position valve. A spring-
loaded detent mechanism is included which
allows continuous rotation and insures that
the shaft “falls into” each of the six positions
at the precise 60° spacing.
2.0 SUPPLIED WITH THE VALVE
Supplied with the valve in a separate bag
are RheFlex
®
stainless steel fittings sets for
all ports and the following items. A 20 µL
sample loop is supplied with Model 7010.
A joining tube is supplied with Model 7040.
• Hex Key(s)
• Mounting Screws (2)
3.0 SPECIFICATIONS
• Maximum Operating Pressure: Model
7010 and Type 70 non-L models -
48 MPa (483 bar, 7000 psi); L models -
34 MPa (345 bar, 5000 psi)
• Maximum Operating Temperature:
Models 7010, 7000, 7030, 7040, and
L models - 150°C; Model 7060 - 80°C
• Flow Passage Diameters: Models 7010,
7000, 7030, 7040 - 0.5 mm (0.018") and
0.6 mm (0.024"); Model 7060 - 0.5 mm
(0.018") and 0.4 mm (0.016");
L models - 1 mm (0.040")
• Wetted Surfaces: stainless steel and an
inert polymer
• Ports in all models accept 10-32 male
threaded fittings
4.0 IMPORTANT SAFETY NOTICES
4.1 Warning: (Using 7010 as an injector):
When using sample loops larger than
100 µL, shield yourself from mobile phase
coming out of the needle port when the valve
is turned from INJECT to LOAD. Example:
1 mL loop ejects 20 µL upon decompression
from 19 MPa (200 bar, 2898 psi).
4.2 Caution: Do not mount the valve with
the ports facing up. Leakage due to a
damaged rotor seal or loose fittings can
cause the bearings to corrode.
4.3 Caution: Rinse the valve thoroughly
after using buffer solutions to prevent salt
crystals from forming, which can cause
damage to the rotor seal and stator face
assembly.
5.0 INSTALLATION
All valves can be panel mounted:
a) Remove the handle assembly by
loosening the knob set screw(s).
b) Fasten the valve to the panel using the
two mounting screws supplied.
On Model 7060, the two screws that hold
the detent mechanism on the valve should
be removed before fastening the valve to the
panel. If the detent mechanism needs to be
disabled, as is required when installing a
pneumatic actuator around Model 7060,
refer to Section 8.4.
5.1 MODEL 7010 INJECTOR
Model 7010, as a sample injector, connects
to different system components.
a) Connect an accessory injection port to
Port 5 and the vent line to Port 6. Place the
injection port at the same horizontal level as
Vent Line 6 to avoid siphoning.
b) Connect the pump to Port 2 and the
column to Port 3. Leave the column
disconnected from the valve during initial
Position A
Position B
Models 7000 & 7010
Two-Position, Six-Port
Position A
Position B
Model 7030
Three-Way
Position B
Position A
3
2
4
5
1
3
2
4
6
5
1
6
Model 7060
Six-Position
3
2
4
6
7
5
1
Position A
Position B
Model 7040
Four-Way
2
4
6
5
1
3
2
4
6
5
1
3
Fig. 1. Flow diagrams of Rheodyne Type 70 high pressure switching valves.
Page 1 of 4
2320666B
6/02
2
4
6
5
1
3
2
4
6
5
1
3
Position A
Position B
Rheodyne LLC • A Unit of IDEX Corporation • 600 Park Court, Rohnert Park, CA 94928 • (707) 588-2000 • Fax (707) 588-2020
www.rheodyne.com
