11.3 VLLD Installation
To watch the instructional video for the installation of the Model 327
VLLD, simply use the following QR Code. Or, the instructional video
can also be found at www.YouTube.com by entering the search word
“OPWGlobal”.
CAUTION: VLLD should ALWAYS be installed in a containment
area and NEVER in a dirt sump.
1. Remove all pressure from the product piping.
2. Remove the current leak detector from the leak detector
port.
CAUTION: Be sure to prevent any debris or scaling from entering the
system through the leak detector opening.
3. Use the fuel-absorbent cloths to soak up fuel within the
work area and to dry pipe threads in the leak detector
opening.
4. Use an emery cloth to remove any burrs in the packer of
the VLLD sensor seat.
Figure 11-2 Remove Burrs
5. Plug the line test port.
NOTE: Apply fuel-approved thread sealant (not thread tape) to plug.
6. Install the sensor in the existing submersible pump line
leak detector port. Take care not to damage O-ring seal.
a. Apply proper thread sealant to the sensor threads.
Figure 11-3 Apply Thread Sealant
b. Install into test port and tighten by hand.
c. Using the proper wrench, tighten the sensor on the
hex on top of the sensor. Tighten only enough to
prevent leakage. Do not over tighten!
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