Product Overview

A-3000
industries incorporated
Suntec Industries Incorporated - 60 Aberdeen Drive - Glasgow, KY 42141 - USA
Tel : [phone] - Fax : [phone] - Mail : [e-mail] - www.suntecpumps.com
PUMP
IDENTIFICATION
(Not all model combinations are available
Consult your Suntec representative)
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
Identification number
3006
3106
Revision
A-3000 - US - Ed. 2 - December 2014
SOLENOID PUMP
TYPE A2VA 3006 / 3106
The A-3000 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.
APPLICATIONS
- Fuel oil #2 and lighter or fuel oil #4 and lighter, not compatible for use with
blends higher than 5% biodiesel.
- One pipe system (two-pipe system possible).
PUMP OPERATING PRINCIPLE
The fuel from the gear set flows across the cone valve causing a pressure differential
sufficient 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 flow causes the piston
chamber pressure to rise above that of the opposing spring force, the piston opens
and flow 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 flow 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 flow 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 flow
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