DPLLD Transducer Installation
FE Petro Pumps
17
tighten the nut to ensure a watertight seal. Connect and seal the pressure transducer wires to the wires from
the TLS console as described in ‘Epoxy Sealing DPLLD Transducer Field Wiring Connections’ on page 21.
5. If applicable, open ball valve down line from the pump. Upon start-up of the pump, check for leaks to ensure
that the system is leak free.
FE Petro Pumps
Disconnect, lock out, and tag all AC power to the TLS console, dispens
-
ers and submersible pumps.
When servicing equipment, use non-sparking tools and use caution when removing or in
-
stalling equipment to avoid generating a spark.
1. If a ball valve is installed down line from the pump, close it.
2. If the pump does not have a Stage II vapor recovery device installed in the pressurized piping, remove the 2’’
NPT plug from line leak detector port.
Install the DPLLD transducer into the 2’’ NPT port as shown in Figure
14.
Seal the NPT threads only with a UL-Classified, nontoxic pipe sealant suitable for the
fuel involved (for high-alcohol fuel blend applications, Loctite 564 is recommended).
Apply sealant in a manner that prevents it from entering and contaminating hydraulic
cavities.
3. If the pump does have a Stage II vapor recovery device installed in the pressurized piping, lubricate the
external o-ring on the SwiftCheck valve using mineral oil or other suitable lubricant and thread the valve into
the Red Jacket leak detector fitting (P/N 038-072) as shown in Figure
10 instead of in the pump’s
leak detector port. Next thread the DPLLD transducer into the SwiftCheck valve.
Seal the NPT threads only with a UL-Classified, nontoxic pipe sealant suitable for the
fuel involved (for high-alcohol fuel blend applications, Loctite 564 is recommended).
Apply sealant in a manner that prevents it from entering and contaminating hydraulic
cavities.
Because the DPLLD transducer must be installed downstream from these devices, a monitored containment
sump is required.
There
must
not be a check valve installed between the SwiftCheck valve and the pump
for DPLLD to function properly.
Ensure that the Healy pump is wired according to the manufacturer’s instructions and utilizes isolation relays.
4. For DPLLD operation there must be a FE Petro model R precision check valve in the pump, If necessary,
replace the current check valve with a model R precision check valve (ref. Figure
14).
