The Electrical Conduit; Direct Installation - Red Jacket LPG Premier Installation Manual

Introduction

The Electrical Conduit

The Electrical Conduit
The installer must supply the electrical conduit so that the wires can be sealed from the pumped liquid. The pipe
must be Schedule 80 and threaded 1/2-14 inch NPTF per ANSI B1.20.3 a length of 16.2 to 19.9 mm (0.64 to
0.78 inch). This will result in a thread engagement of 5 to 7 threads. Measurement of the thread profile is specified
in ANSI B1.20.5. Female threads shall gauge at "flush" to "2 turns large" using an L1 plug-gauge. Apply Loctite
565, 570 or 577 thread sealant (Butane and Propane resistant) to both ends of the conduit pipe.

Direct Installation

Installing the submersible pump directly into the storage tank without a manifold is allowable only when permitted
by local regulations.
In such installations, the clearance between the tank bottom and pump inlet must be a minimum of 125 mm (5
inches). A sump directly underneath the pump may be used if the size is at least DN200 (8 inches). Figure 1
illustrates recommendations for the Red Jacket LPG pump directly installed in a tank and Table 2 contains an
itemized material list for the Figure 1 installation.
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