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Mechanical Installation
6. Assemble the strainer pot assembly,
if included, onto the pump. Be sure
to install the O-ring (included with
the strainer pot assembly) over the
protruding plastic ring on the front of
the pump housing before mounting
the strainer pot. Properly position the
strainer pot to the housing and secure
in place using the 8 large flange bolts
and washers included with the strainer
pot assembly. These bolts should not
be over tightened as this could damage
the pump. Proper technique is to
lightly snug each bolt with a wrench. A
squealing sound during tightening of the
bolts indicates that the bolts are being
excessively tightened.
7. Place the pump in its final location and
ensure that the mating flanges of the
suction and discharge piping are in line
and parallel to the flanges on the pump.
Resolve any problems with misalignment
before bolting the flanges to the pump.
Note: Always provide a minimum
of 4 inches (102 mm) of clearance
between the rear of the motor and any
obstruction.
8. The pump may be secured to bolts
buried in the concrete by using the holes
on the outside of the motor supports.
9. Ensure that the flange gasket is properly positioned between the suction flange of the pump and the flange
of the suction piping. Use only high quality rubber, full diameter flange gaskets with holes for the bolts to
pass through. It may be necessary to hold the gasket in place with either silicone or two or three drops of a
cyanoacrylate (super glue) material. Do not use any other grease or glue as they may contain chemicals that
could attack the plastic material. Install the flange bolts hand tight on the suction side of the pump.
Some off the shelf, non-Pentair, 6-inch flange adapters will not
work with this pump without the strainer pot. Note the tabs on the
flange on the left, (Figure 4). These tabs will interfere with the strainer pot alignment
lip on the housing. This lip is used to locate the strainer pot on models that are so
equipped. Please contact Pentair for a replacement flange adapter kit (P/N 357212).
Use large diameter flat washers between the hex nut and the
pump flanges to properly distribute the clamping forces on
the flange. Tighten the flanges to 20 ft-lb. (27.1 newton/meters) unless otherwise
specified by the flange manufacturer. If it is not possible to use a torque wrench
then care should be taken not to over tighten the flange bolts. Failure to follow
the above instructions can result in damaging the pump flange.
1
0. Properly insert the flange gasket on the discharge port of the pump. Install the flange bolts hand tight on the
discharge flange connection.
11. Inspect both the suction and flange connection to ensure alignment remains acceptable. Take any corrective
action before tightening the flange bolts to the required torque.
Suction and discharge piping must be supported by an appropriate system of supports or hangers. Inadequately
supported pipe can cause excessive loads to be transmitted to the pump resulting in a structural failure of the
pump that could result in flooding and property damage.
(Cont.)
P/N 356766 *
P/N 356789 *
P/N 356788 *
* INCLUDED WITH STRAINER POT
SUCTION CONNECTION WITHOUT
EQ SERIES® High Performance Commercial Pump Installation and User' s Guide
HEX NUT M20 x 25 (5/8-11)
(5/8" ID X 1-5/16") MIN OD
SUCTION CONNECTION WITH
FLAT WASHER
STRAINER POT
6" ANSI CLASS 150 FLANGE
STRAINER POT
TABS
70 DURO NITRILE OR EPDM
3.2 mm (1/8") THICK GASKET
22.1 mm (5/8" ID X 1-5/16") MIN OD
FLAT WASHER
HEX HEAD CAP SCREW
M20 x 25, 80 mm (5/8-11 X 3-1/4") LG
Optional accessory flange kit
See page 17
A-EQ-160 (6" ANSI CLASS 150) FLANGE
Figure 2
70 DURO NITRILE OR EPDM
3.2 mm (1/8") THICK GASKET
22.1 mm (5/8") ID X 44 mm (1-5/16") MIN OD
FLAT WASHER
HEX HEAD CAP SCREW
5/8-11 X 2-1/4" LG
Figure 3
Figure 4
3
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