The A2VA-3006-B model has a unique circuit that contains two separate cut-on and cutoff mechanisms :
The cone valve – diaphragm valve circuit gives a high speed cut-on regardless of type
of control used.
The solenoid bypassing circuit can be used to achieve cut-on and cut-off at full operation
speed. It provides cut-off at full operating speed regardless of which type of control is used.
The pump circuit contains a positive displacement involute gear set and four controlling
valves. This model is specially engineered for B20 use (Viton O-rings and lip seal, special
materials for piston and diaphragm valve)
Fuel oil #2 and lighter, B6-B20 (blends from 6% up to 20% biodiesel, per ASTM D396)
or fuel oil #4.