13
2. Connect a length of grey tubing (supplied with the valves for use on
the valve barb fitting) between the hose barb on the valve and the
inlet connector on the isolator (Figure 2.9). If more than one isolator
is supplied by a valve, use “Tee” connectors as required (Figure 2.10).
Connect the grey tube from the valve to the “Tee” and use translucent
tubing between the “Tee” and each isolator.
IN
OUT OUT
GAGE
EXH
Air
Suppl
yy
Leveling Valve
Attachment
Screws
Sensor
Control
Arm
Barb Fitting
Grey Tubing
Table Bottom
Metering Needle
Valve
Figure 2.9 — Detail of Valve Connections, Single Isolator
B. Close the metering needle valve (Fig. 2.9) on each valve and then open it
1
⁄2 turn for each isolator that is connected to it. For example, if the valve
controls two isolators, the needle valve is opened 1 full turn. [Please note:
If you have a minimum load on your optical table top, open the metering
valve about
1
⁄8 –
1
⁄4 of a turn.]
C. Turn on the air supply and adjust the regulator for the pressure calculated
using the formula given in Section 1. This pressure must not exceed 100
psig (7.0 kg/cm
2
).
IN
OUT OUT
GAGE
EXH
Air
Suppl
yy
Leveling Valve
Attachment
Screws
Sensor
Control
Arm
Barb Fitting
Grey Tubing
Table Bottom
Tee
Translucent
Tubing
Figure 2.10 — Detail of Valve Connections, Two Isolators
To Next Page
Loading...