The ABP Pump is a relatively high volume, low pressure pump which is capable of pumping in either direction. Recommended uses are as a bow thruster on small to medium size boats or as a ballast pump in submarines. When used as a ballast pump, a suitable valve is required to prevent water from entering the ballast tank when the pump is turned off. The "TEE" Valve is highly recommended.

Minimum recommended voltage is 7.2 but best results are achieved when driven with 12 volts. Max current drain on the battery is less than 1 amp.

The Ballast System "TEE" Valve incorporates two one-way valves within its small housing and is specifically designed to be used with the ABP Pump in submarine ballast systems. Operation is essentially automatic in that it relies on pressure differential to operate. When water is being pumped into the tank, the resulting pressure lifts the exhaust valve allowing air to escape. When water is being pumped out of the tank, the intake valve opens allowing air to be pulled into the tank. The "TEE" Valve eliminates the unscale-like "waterspout" from the periscope when diving.

$19.50

The RS - 5 Electronic Reversing Switch is ideal for those applications that require the on/off/on (in reverse) operation of electric motors such as bow thrusters and ballast pumps. Microprocessor control and low on-resistance Mosfet assures reliable, efficient operation. Will control motors of any voltage
(up to 12 volts) at a maximum of 8 amps.
RS - 5 measures only 1 1/2" x 1 1/2" x 3/4".