Air Pump
Pump is belt driven, positive displacement, vane type that provides air for the thermactor system. It is available in 11 cu. in. and 19 cu. in. sizes. The 11 cu. in. pump takes air in through a filter attached to the air inlet nipple. The 19 cu. in. pump takes air in through an impeller type centrifugal air filter fan, thus eliminating the need for a separate air filter. Dust and dirt particles cannot enter the pump because these heavier-than-air contaminants are thrown from the air intake by centrifugal force. The air pump does not have a pressure relief valve, this function being controlled by the air by-pass valve.