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Installation
Tightening Threaded Fasteners Before
First Use
Before using the pump for the first time, check and
retorque all external fasteners. See Torque Se-
quence, page 18. After the first day of operation,
retorque the fasteners. Although pump use varies, a
general guideline is to retorque fasteners every two
months.
Use a compatible thread sealant on all male threads.
Tighten all connections firmly to avoid air or fluid leaks.
CAUTION
To avoid pump damage, do not overtighten the
fittings to the pump.
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
This pump must be grounded. Before
you operate the pump, ground the
system as explained below. Also read
the section FIRE AND EXPLOSION
HAZARD on page 3.
The acetal pump contains stainless steel fibers
which make the wetted parts conductive. Attaching
the ground wire to one of the grounding locations
grounds the wetted parts.
The polypropylene and PVDF pumps are not
conductive. When you pump conductive flam-
mable fluids, always ground the entire fluid system
by making sure the fluid has an electrical path to a
true earth ground. See Fig. 1. Never use a poly-
propylene or PVDF pump with non-conductive
flammable fluids as specified by your local fire
protection code. Consult your fluid supplier to
determine the conductivity or resistivity of your
fluid.
US Code (NFPA 77 Static Electricity) recommends
a conductivity greater than 50 x 10
–12
Siemans/me-
ter (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.
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
grounding instructions for your area and type of equip-
ment.
Acetal Pump Grounding Instructions
For polypropylene and PVDF pumps, see the
warning above.
Ground all of this equipment.
Pump: Connect a ground wire (A) and clamp, Part No.
222011. See Fig. 1. The pump grounding locations
are on the manifold between the inlet and outlet ports.
Use the nut (B) and bolt (C) that are provided with the
pump, and install as follows:
1. Place the nut in the nut catcher on the underside
of the manifold.
2. Insert the bolt through the loop end of the ground
wire.
3. Insert the bolt through the hole on the pump man-
ifold and tighten it into the nut that you positioned
in step 1.
4. Connect the clamp end of the ground wire to a
true earth ground.
Fig. 1
06179A
Fig. 1
A
C
grounding hole
B
D Air and fluid hoses: Use only grounded hoses with
a maximum of 500 ft (150 m) combined hose
length to ensure grounding continuity.
D Air compressor: Follow the manufacturer’s recom-
mendations.
D All solvent pails used when flushing: Follow the
local code. Use only grounded metal pails, which
are conductive. Do not place the pail on a non-con-
ductive surface, such as paper or cardboard, which
interrupts the grounding continuity.
D Fluid supply container: Follow the local code.