Kussmaul Auto Pump 12 Volt W/Auto Drain

DESCRIPTION 100 PSI Max Rating, 12V, 11A Vehicle mount compressor ensures truck air brake system is properly pressurized for immediate dispatch from station Automatically purges water separator bowl every time compressor cycles via a 12V solenoid Pressure switch regulated operation automatically senses low pressure in air system and restores proper pressure, preventing brake lock-up No interference with engine mounted air compressor Factory set PSI actuation points: 75 "On", 95 "Off" with Adjustment differential 20 PSI Sealed ball bearings for long service life Compact size 1 year warranty The Auto Pump 12 Volt AD is an 091-9-12V Auto Pump with an Automatic Drain installed.  A normally open solenoid valve drains the moisture from the trap each time the compressor shuts down. The Auto Drain assures that the filter bowl is always drained and does this without intervention by maintenance personnel.  The 091-9-12V-AD is a small air compressor designed to mount on vehicles with air br