Product Overview

A2VA-3006-B
Suntec Industries Incorporated - 60 Aberdeen Drive - Glasgow, KY 42141 - USA
Tel : [phone] - Fax : [phone] - Mail : [e-mail] - www.suntecpumps.com
PUMP
IDENTIFICATION
Single stage
Motor speed : 3450 rpm
Strainer capacity : 3 GPH
Shaft rotation
and nozzle location
(seen from shaft end)
A : clockwise rotation/
right hand nozzle.
A 2 V A 3006 7 B
Identication number
Revision
B : B6-B20 applications
A2VA-3006B - US - Ed. 4 - January 2020
SOLENOID PUMP
The A2VA-3006-B model has a unique circuit that contains two separate cut-on and cut-
off 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).
APPLICATIONS
- Fuel oil #2 and lighter, B6-B20 (blends from 6% up to 20% biodiesel, per ASTM D396)
or fuel oil #4.
- One pipe system (two-pipe system possible).
PUMP OPERATING PRINCIPLE
The fuel from the gear set ows across the cone valve causing a pressure differential
sufcient to overcome the spring force of the diaphragm valve. This causes the diaphragm
valve to close and the fuel is then routed to the piston chamber.
If the solenoid dumping valve is closed, when the level of this ow causes the piston
chamber pressure to rise above that of the opposing spring force, the piston opens and
ow passes through the nozzle. The piston spring is adjusted such that a given nozzle
pressure can be maintained while any resulting excess fuel is metered back to the inlet
on single pipe, and the tank on two pipe installation.
If the solenoid bypassing valve is open (not energized) when the diaphragm circuit closes,
the pressure in the piston chamber remains below the level to open the piston until the
solenoid valve is energized (closed).
When power is removed from the solenoid, the valve opens, closing the piston at full
operating speed, shutting fuel off the nozzle.
Installation :
This unit is supplied for 1-pipe operation, without by-pass plug installed. Please verify
before installation.
For one pipe installation, the by-pass plug must not be installed. The fuel which is not
required at the nozzle is then returned back to the inlet.
For two pipe installation, the steel plug of the return port must be removed and the by-pass
plug must be inserted in the return port allowing any fuel not required at the nozzle to be
bypassed back to the tank. The return plug must not be reinstalled.
Bleed :
In one pipe operation, the easy ow bleeder valve must be loosened to bleed the system.
Bleeding in two pipe operation is automatic, but it may be accelerated by loosening the
easy ow bleeder.
High pressure oil + 12 psi
High pressure oil
Low pressure oil
Return oil
Inlet oil
Solenoid valve
"closed" or
energized
position
N = Non delay
Pressure
adjusting
screw
Diaphragm
valve
Lip seal
Input
shaft
By-pass plug
Return to tank
Easy ow
bleed valve
Gearset
Piston assembly
Cone
valve
Nozzle port
Intake
from tank
Positive
strainer
Solenoid valve
"open" or
de-energized
position
Nozzle port
Piston assembly
Pressure adjusting
screw