Viking Pump TSM341.1: SG Mag Drive Series - Manual (Page 3)

SECTION TSM 341.1 ISSUE J PAGE 3 OF 19
CAUTION !
Rare earth magnets used in these couplings
have extremely strong magnetic fields capa-
ble of changing the performance or damaging
items such as the following:
• Pacemakers
• Metal implants
• Watches
• Computers and discs
• Credit cards
Completely assembled magnetic couplings
will not affect the items listed above.
Altered performance or damage can occur
only when the coupling halves are separated.
There are no known harmful effects of these
magnetic fields on the human body itself.
INSTALLATION
General
The following items must be considered prior to pump
installation:
1. Location - locate the pump as close as possible to
supply of liquid being pumped. If possible locate the
pump below liquid supply. Viking pumps are self priming;
but, the better the suction conditions the better the pump
will perform.
2. Accessibility - pump must be accessible for inspection,
maintenance and repair.
SPECIAL INFORMATION
ROTATION: Viking Mag Drive® pumps are designed to
run in a designated direction (indicated on name plate).
Shaft rotation determines which port is suction and which is
discharge. Running the pump in the opposite direction may
seriously affect the performance of the unit and the relief
valve (if present) will not operate. If rotation must be reversed,
contact your Viking Pump supplier for instructions and parts
to change over.
1. A pressure relief valve is mounted as standard on the
SG/SGN series magnetically coupled pumps.
2. The SG/SGN series is a positive displacement pump
and requires some form of over pressure protection.
Without pressure protection, if the discharge line is
blocked or becomes closed, pressure will build up until
the motor stalls, drive equipment fails, a pump part
breaks, or the piping and/or other equipment in the
system bursts.This may be an integral pressure relief
valve supplied with the pump, a torque limiting device
or a rupture disk.
3. Do not use decoupling of magnets as protection from
over pressure. SG/SGN Series pumps can develop
potentially damaging pressure before the magnets
decouple. Decoupling of the magnets may also cause
damage to the magnets themselves.
4. The relief valve adjusting screw cap must always point
toward suction side of pump.
5. Pressure relief valves cannot be used to control flow or
regulate pressure.
For additional information on pressure relief valves. Refer to
Technical Service Manual TSM000 and Engineering Service
Bulletin ESB-31.
DANGER !
Before opening any Viking pump liquid
chamber (pumping chamber, reservoir, relief
valve adjusting cap fitting etc.) Be sure:
1. That any pressure in the chamber has
been completely vented through the
suction or discharge lines or other
appropriate openings or connections.
2. That the driving means (motor, turbine,
engine, etc.) has been “locked out” or
made non- operational so that it cannot
be started while work is being done on
pump.
3. That you know what liquid the pump
has been handling and the precautions
necessary to safely handle the liquid.
Obtain a material safety data sheet
(MSDS) for the liquid to be sure these
precautions are understood.
Failure to follow above listed precautionary
measures may result in serious injury or
death.
SGN - 81013 - M 0 V U
Spur Gear Principle Design Series Bracket:
M = Metric (ISO) Bracket for
IEC Motor Mount (-10,-14)
U = SAE Bracket for
NEMA Motor Mount (-10,-14)
Relief Valve:
O = Without Valve
V = With Valve
(Single Pumps only)
Shaft Rotation:
(Viewed from shaft end)
0 = Clockwise
1 = Counter-Clockwise
Seal Type:
8 = Mag Drive
Material of Construction:
Blank = Cast Iron
N = Ductile Iron
(-805,-807)
Frame Size Pump Size