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12V Rule 500GPH Automatic Submersible Bilge Pump


Fully Automatic Next Generation Rule 12V Bilge Pump – 31LPM Max

SKU: RWB807 Categories: ,
Additional information

Rule 500GPH Automatic Submersible Bilge Pump

31 Litres Per Minute

Compact – 107mm Height x 74mm width x 64mm depth – NOT including discharge.

1.6 amp draw @ 12v.   Consumes only 0.2 amps per day.

Threaded hose outlet suits 20mm (3/4″) hose.

Rule 500GPH (31LPM) Automatic Submersible Bilge Pump Features

  • New modern design – just enough change in appearance to differentiate the new models
  • These Rule S series pumps are the smallest Automatic sensing pumps available on the market
  • GPH ratings are now at 12v – rather than 13.2 v previously – meaning the pump will produce its rated flow at a lower voltage – more typical of on board voltage supply
  • Higher flow – optimised impeller to provide greater flow at the same amperage as previous
  • 16 gauge tin coated copper electrical wiring with silicone infused water blocking feature
  • High efficiency, low amp motors include true Electromagnetic suppression (EMC)
  • Built-In thermal cut-out (TCO) in the motor provides additional protection for pump & vessel
  • Backflow prevention – now includes a check valve in the discharge port which reduces the   amount of water draining back from the pump discharge hose into the bilge
  • Threaded discharge port with screw on hose port- gives easier installation and maintenance. Discharge hose port is included with each pump
  • Hidden air vents in the pump prevent air locking in challenging plumbing installations   and helps with the check valve operation

How the Automatic Sensing works

The “S” series automatic sensing RULE bilge pumps work on the principle of impeller resistance. The pump turns on every 2 1/2 minutes for about 1 second to sense for water. If water is present, the pump will sense resistance at the impeller and continue to run until water is removed. After that it will resume checking for water every 2 1/2 minutes. Water level is kept between 1/8” 3mm low and 3/8’ 10mm high.

Next generation compact submersible 500 GPH Automatic Sensing electric bilge pump – no float switch required. Totally submersible pump with water cooled, ignition and TCO protected motor, stainless steel shaft and snap-on strainer base. These pumps are extremely efficient, draw low current and offers high capacity output in a very compact housing, to fit into the smallest available space. Please note – using the included check valve will reduce the output flow of the pump. This pump cannot be run through a 240v transformer.

Standard Features included

  • 3 Year limited warranty A Snap-on strainer base
  • Compact design to fit in the smallest places
  • Fully submersible
  • Ignition protected motors
  • Stainless steel shaft
  • Excellent colour retail clamshell packaging