8 308981
Installation
Grounding
To reduce the risk of static sparking, ground the pump
and all other equipment used or located in the pumping
area. Check your local electrical code for detailed ground-
ing instructions for your area and type of equipment.
NOTE:
When pumping conductive flammable fluids with
a polypropylene or PVDF pump,
always
ground the fluid
system. See the
WARNING
above.
Fig. 3
shows a rec-
ommended method of grounding flammable fluid con-
tainers during filling.
Ground all of this equipment:
•
Pump
: The metal pump has a grounding strip in
front of the center housing. The acetal pump has a
grounding screw on the top manifold. Connect the
non-clamp end of the ground wire to the grounding
strip or grounding screw, and connect the clamp
end of the ground wire to a true earth ground. To
order a ground wire and clamp, order Part No.
222011.
•
Air and fluid hoses
: Use only electrically conductive
hoses.
•
Air compressor
: Follow the manufacturer’s recom-
mendations.
•
Solvent pails used when flushing
: Follow the local
code. Use only grounded metal pails, which are con-
ductive. Do not place the pail on a non-conductive
surface, such as paper or cardboard, which interrupts
the grounding continuity.
•
Fluid supply container
: Follow the local code.
Fig. 3
WARNING
FIRE AND EXPLOSION HAZARD
This pump must be grounded. Before operat-
ing the pump, ground the system as
explained below. Also read the section
FIRE
AND EXPLOSION HAZARD
on page 3.
The acetal Husky 515 pump
contains stainless steel
fibers, which makes the wetted parts conductive.
Attaching the ground wire to the grounding screw (106)
grounds the wetted parts. See
grounding screw
on
page 25.
The metal Husky 716 pumps
have a grounding strip
connecting the vee clamps (109). Attach a ground wire
to the grounding strip with the screw, lockwasher, and
nut as shown in the
Grounding Detail
on page 27.
The polypropylene and PVDF Husky 515 pumps are not
conductive.
When pumping conductive flammable fluids, always
ground the entire fluid system by making sure the fluid
system has an electrical path to a true earth ground (see
Fig. 3
). Never use a polypropylene or PVDF pump with
non-conductive flammable fluids as specified by your
local fire protection code.
US Code (NFPA 77 Static Electricity) recommends a
conductivity greater than 50 x 10
-12
Siemans/meter
(mhos/meter) over your operating temperature range to
reduce the hazard of fire. Consult your fluid supplier to
determine the conductivity or resistivity of your fluid. The
resistivity must be less than 2 x 10
12
ohm-centimeters.
9079A
2
A
H
S
T
Z
1
2
1
Y
Y
GROUNDING A PUMP
Hose must be conductive.
Dispense valve nozzle must be in contact with container.
KEY
A
Pump
H
Fluid drain valve (required)
S
Dispense valve
T
Fluid drain line
Y
Fluid section grounding via grounding strip or grounding
screw (required for metal and acetal pumps)
Z
Container ground wire (required)
