G4315-90000 install sheet.fm
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Valve Box and Valve
Accessories G4315A, G4316A, G4317A
Installation Guide
The G4315A, G4316A, and G4317A accessories consist of
separate kits depending on the custom configuration ordered.
These kits may include one or more of the following:
• Heated valve box kit
• Valve hardware installation kit
• Valve(s)
Table 1 and Figure 1 list and show the contents of the heated
valve box kit.
Table 1
Heated valve box kit contents
G4315A
G4316A
G4317A
Screw, M4 x 12 mm, Torx T-20
2
2
Screw, M4, Torx T-20, chrome-plated
4
4
Nut plate
2
2
Valve box, 1 heated zone
1
Description
Valve box, 2 heated zones
Agilent Technologies
1
Valve box with actuator(s)
(G4316A)
Nut plates
Heater/sensor wiring
Screws
Solenoid(s) with air tubes
Hex wrenches
(1 or 2)
Standoffs
Figure 1
Heated valve box kit contents
NOTE
2
The solenoids and valve actuators are assembled and tested at the factory.
Do not disassemble them or break any electrical or air connections.
Installation Guide: Valve Box and Valve
Table 2, Figure 2, and Figure 3 list and show the contents of the
valve hardware installation kits.
Table 2
Valve hardware installation kit contents
Description
Kit G2739A
(Liquid sample)
Metering valve 1/16-inch
1
Screw, M3 x 8 mm
2
Kit G2740A
(Gas sample)
1
Screw, M3 x 30 mm, chrome-plated
2
1
Label
1
1
Screw, thread-cutting
4
Screw, M4 x 12 mm, Torx™ T-20
4
Fitting, column bulkhead
1
4
Nut, 5/16-inch
1
4
Restrictor bracket
1
1/16-inch SS tube, 102 mm long
1
1
1/16-inch SS tube, 360 mm long
1
2
1/16-inch SS tube, 400 mm long
1
1
1/16-inch SS tube, 560 mm long
1
5
1/8-inch nut and ferrule set
1
1
1/16-inch SS tube, 203 mm long
1
Filter union, reducing
1
Reducer/restrictor, SS
1
Actuator limiter, 36 degrees
Installation Guide: Valve Box and Valve
0
1
3
Tubing
Nut and ferrule set
Screws
Restrictor bracket
Metering valve
Nut
Figure 2
Kit G2739A, liquid sample valve
Tubing
Reducer/restrictor
Actuator
limiter
Screws
Nut and ferrule set
Filter
union
Nuts
Column bulkhead fittings
Figure 3
4
Kit G2740A, gas sample valve
Installation Guide: Valve Box and Valve
Tools needed
Torx T-10 and T-20 drivers
Flat blade screwdriver
Needle-nose pliers
3 mm hex key wrench
Installation Guide: Valve Box and Valve
5
Installing the Heated Valve Box
WA R N I N G
The oven, inlet, and detector may be very hot. Before proceeding,
turn off the oven and all other heated zones and let them cool down.
Harmful gases may be present. Hydrogen (if used) can present an
explosion hazard. Before proceeding, turn off all supply gases at
their sources.
Shock hazard. Before proceeding, turn off the GC and disconnect the
power cord.
Install the valve box
1 Install two chrome-plated screws about halfway into each of
the two nut plates as shown in Figure 4.
Figure 4
Install the nut plate screws
2 Inside the oven, locate the pair of T–shaped cutouts on the
left wall and match them with the two tabs on the nut plate
(see Figure 5). Slide the tabs on the nut plate into the oven
cutouts so that the screws rest on the bottom of the T. Repeat
on the right side of the oven. Tighten the screws.
6
Installation Guide: Valve Box and Valve
Figure 5
Attach the nut plates
3 Clip the notches holding the rectangular cover plate on top of
the oven with diagonal cutters (see Figure 6). Hold the
cutters with the flat face to the outside to remove as much of
the nibs as possible. Remove the plate.
Installation Guide: Valve Box and Valve
7
Install screw
(Step 4)
Cover plate
Install screw
(Step 6)
Figure 6
Valve box location
4 Install one screw where shown in Figure 6. Do not tighten.
5 Place the valve box on the oven top and move it to the rear so
that it slides under the screw.
6 Install another screw at the front of the box (see Figure 6).
Tighten both screws.
8
Installation Guide: Valve Box and Valve
Install and wire the solenoids
The internal valve wiring is located near the top center of the
main board. To access it, you must remove the right side panel.
WA R N I N G
Removing the side panel exposes dangerous voltages. Turn the
instrument off and disconnect it from its power source before
proceeding.
1 Attach the solenoid assembly to the main board.
2 × 8 connector
Table 3
2 × 8 connector location
2 Place the tubing and cables in the slots in the chassis just
above the solenoids.
Installation Guide: Valve Box and Valve
9
3 Uncoil the air supply tubing and pass it through the hole in
the back of the GC as shown in Figure 7.
Valve air
supply tubing
Figure 7
10
Valve actuator air tubing
Installation Guide: Valve Box and Valve
NOTE
The connectors are prewired so that the Valve 1 driver controls the
solenoid closest to the front of the GC, Valve 2 controls the next one, etc.
Air fittings to actuators
Solenoids (up to 4)
To front of GC
A1 V1 V2 V3 V4 A2
Bracket with connectors
2 x 8 connector on main board
If you ever need to remove a connector from the bracket, press the locking
tabs on the side and pull the connector down. To insert a connector, push
it up into a bracket hole until it locks.
4 Plug the heater/sensor cable(s) into connector A1 (Aux 1)
and/or connector A2 (Aux 2).
Installation Guide: Valve Box and Valve
11
Installing Valves In a Heated Valve Box
WA R N I N G
Do not install a liquid sampling valve (LSV) in the valve box if you
plan to heat the box above 75 °C. Heating an LSV over 75 °C can
cause a leak and subsequent explosion. Liquid sampling valves
should be mounted in the side location to avoid potential explosions.
1 Remove the heater block mounting screw in the lower valve
box.
Valve 4
Valve 3
Valve 2
Valve 1
Figure 8
Remove the screw in
the heater block at the
position where you
will install the valve.
Removing the heater block screw
2 Place the valve in the desired position in the valve box. The
valve rotor index pin of a 6–port valve points toward the
back of the GC if installed correctly. This is the ON position.
Tighten the two screws with a Torx T-10 screwdriver. If this
is the last valve to be installed in the heated zone, make sure
the screws that secure the heater block to the lower valve box
are tight.
12
Installation Guide: Valve Box and Valve
Tighten these screws
Figure 9
Installing the valve
3 Use needle-nosed pliers to move the valve rotor index pin of
the valve counterclockwise until the pin touches the valve
stop (OFF position).
Valve rotor index pin
Valve stop OFF position
Figure 10
Index pin and stops
4 Use the tubing and fittings in the hardware installation kit to
plumb the valves. See “Common Valve Configurations" on
page 19.
Installation Guide: Valve Box and Valve
13
Install the upper valve box
1 Verify that all valve rotors are in the full counterclockwise
position.
2 For each actuator, set the appropriate degree of rotation for
its valve by moving the pin to the required limiting hole (see
Figure 11):
• Four-port valves—place the pin in the 90° hole
• Six-port valves—place the pin in the 60° hole
• Ten-port valves—place the pin in the 60° hole with the
tubular 36° actuator limiter on the pin
Pin
60°
90°
Figure 11
Setting the actuator’s degree of rotation
3 For each actuator, loosen the link arm lockscrew in the barrel
of the shaft that links the valve and actuator about 1/4 turn
(see Figure 12). You may have to apply significant pressure.
14
Installation Guide: Valve Box and Valve
Hex key wrench
Figure 12
Loosening the lockscrew
4 For each actuator, use a flat blade screwdriver to turn the
actuator coupling/shaft assembly counterclockwise until
snug.
Turn counterclockwise
Figure 13
Setting the coupling shaft
5 Locate the two half–moon cutouts at the bottom back of the
upper valve box. Place the upper box on top of the lower
valve assembly, routing the heater/sensor wires through the
cutouts. Secure with two T-20 Torx screws.
6 For each actuator, push the coupling/shaft assembly
downward with a flat blade screwdriver until the slot on the
coupling engages the valve rotor index pin.
Installation Guide: Valve Box and Valve
15
NOTE
If the coupling and valve do not engage, check that both are fully
counterclockwise and try again. If necessary, turn the shaft slightly to
engage the coupling.
7 For each actuator, continue to turn the shaft
counterclockwise until snug, to ensure that the valve and
actuator are both in the OFF position.
Turn counterclockwise
Figure 14
Turning the valve off
8 Tighten the link arm lockscrew firmly.
Plumb the actuators
NOTE
The valve actuators are plumbed at the factory. This procedure is provided
in case you need to plumb the actuators in a manner other than the factory
configuration.
Each valve actuator is driven by two tubes that connect to a
solenoid through two connectors on top. These connectors do
not require tools.
• To make a connection, push the tubing down into the
connector as far as it will go.
• To remove a tube from a solenoid connector, press down on
the plastic insert in the connector and pull the tubing
straight up.
16
Installation Guide: Valve Box and Valve
Top view
To valve box
Air fittings to valve actuators
Solenoids (up to 4)
To front of GC
Although the solenoids are controlled by Valve # 1 through 4 (if
you used the default wiring scheme), you can arrange your
valves in the valve box as you wish. Which driver controls which
valve depends entirely on how you choose to plumb the
actuators.
Installation Guide: Valve Box and Valve
17
Restore the GC to Operating Condition
1 Reinstall any covers that were removed.
2 Plug in the power cord and turn on the GC.
3 Configure the valves. See the GC’s operating instructions if
you need help with this step.
4 Connect the solenoid air supply line to a source of clean, dry
compressed air at 0.38 MPa (55 psi). High purity is not
required; a clean house air supply is adequate.
NOTE
If your detector also uses air, its operation may be affected by pulses in a
shared air line. The solenoid air supply should be separate from the
detector air supply.
5 Turn on the air supply to the solenoid valves.
6 Use a flat head screwdriver to turn each valve ON and OFF.
Ensure that each valve is physically in the OFF position (full
counterclockwise).
7 Use the 3-mm hex key wrench to tighten the link arm
lockscrew by rotating it clockwise until very tight.
Hex key wrench
18
Installation Guide: Valve Box and Valve
Common Valve Configurations
1 The next several pages show some commonly used valve
configurations.
Arrows indicate the
direction of flow.
Adjustable Restrictor valves
are used to adjust the pressure
drop (e.g., to balance flow)
Fixed (non-adjustable) restrictors
Loops have a
specified volume
Union
Fitting
Jumper volume is
not specified.
Figure 15
Column
Valve configuration legend
Installation Guide: Valve Box and Valve
19
Valve plumbing tips
• Use bulkhead fittings with attached tubing for column
connections. Mount the fitting, pointing down, on the left or
right nut plate and secure with a retaining nut. Connect the
free end of the tubing to the valve.
• The best way to cut narrow tubing is with a tubing cutter
designed for this task. If some other cutter is used, check:
• The tubing bore is not restricted at the cut end
• The cut is at right angles to the tubing
• There are no burrs that might interfere with connections.
• Avoid kinks in the tubing.
Column
or
2nd valve
Carrier
Loop
In
Sample
Out
20
OFF
(Load)
Gas sampling valve
ON
(Inject)
Installation Guide: Valve Box and Valve
Column 2
Column 2
Column 1
Column 1
Carrier
Detector
or valve
Adjustable restrictor valve
ON
OFF
Column isolation*
*Temperature limited to 235 °C by micrometering needle valves
to GSV
Sample in
Stream 1 ln
Vent
Stream 2 ln
OFF
ON
Two stream selection (requires gas sampling)
Installation Guide: Valve Box and Valve
21
Column
Carrier
Detector
ON
OFF
Backflush to detector
Precolumn
1st Carrier
Vent
2nd Carrier
Column
Detector
OFF
ON
Backflush a precolumn to vent
22
Installation Guide: Valve Box and Valve
Column 1
From flow controller,
injection port or GSV
Column 2
OFF
ON
Column selection (unused column isolated)
Column 1
Carrier
Carrier
Detector
Column 2
OFF
ON
Sequence reverse
Installation Guide: Valve Box and Valve
23
Column 1
Carrier
Detector
Column 2
ON
OFF
Sequence reverse with backflush of column 1
Column
Detector
or 2nd Valve
Precolumn
1st Carrier
Out
Sample
Vent
In
Loop
2nd Carrier
ON
OFF
Gas sampling with backflush of precolumn to vent
24
Installation Guide: Valve Box and Valve
Column
Carrier
Detector
or 2nd
valve
Out
Sample
In
Loop
OFF
ON
Gas sampling with backflush to detector
Out
Sample 2
In
Carrier
Loop 2
Out
Sample 1
In
Detector
or 2nd Valve
Loop 1
ON
OFF
Gas sampling of alternate streams
Installation Guide: Valve Box and Valve
25
Column 2
Carrier
Out
Sample
In
Loop
Column 1
ON
OFF
Gas sampling with sequence reverse
Column 2
Carrier
Out
Sample
In
Detector
or
2nd valve
Column 1
Gas sampling with sequence reverse and backflush of column 1
26
Installation Guide: Valve Box and Valve
Column 2
Carrier 1
Vent
Carrier 2
Column 1
Detector or
2nd Valve
OFF
ON
Column selection with backflush to vent
Carrier
OFF
ON
Liquid sampling
Installation Guide: Valve Box and Valve
27
Column 1
Column 2
Carrier
Detector
Loop
In
Sample Out
Adjustable Restrictor valve
OFF
OFF
Gas sample and column isolation
Column 1
Column 2
Carrier
Out
Sample
In
Detector
Loop
OFF
OFF
Adjustable Restrictor valve
Gas sample/backflush and column isolation
28
Installation Guide: Valve Box and Valve
Installation Guide: Valve Box and Valve
29
Agilent Technologies
Notices
© Agilent Technologies, Inc. 2003
No part of this manual may be reproduced in
any form or by any means (including electronic
storage and retrieval or translation into a
foreign language) without prior agreement and
written consent from Agilent Technologies,
Inc. as governed by United States and
international copyright laws.
Manual Part Number
G4315-90000
Edition
First edition, July 2003
Printed in China
Agilent Technologies, Inc.
412 Ying Lun Road
Waigaoqiao Free Trade Zone
Shanghai, 200131 P. R. China
Safety Notices
CAUTION
A CAUTION notice denotes a hazard.
It calls attention to an operating
procedure, practice, or the like that,
if not correctly performed or adhered
to, could result in damage to the
product or loss of important data.
Do not proceed beyond a CAUTION
notice until the indicated conditions
are fully understood and met.
WA R N I N G
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly
performed or adhered to, could
result in personal injury or death.
Do not proceed beyond a WARNING
notice until the indicated
conditions are fully understood and
met.
G4315-90000
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