Pentair EQ SERIES User Manual download pdf (Page 10)

EQ Series Pump Installation and User’s Guide

Mechanical Installation, cont.’d.

6. Assemble the strainer pot assembly, if

included, to 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.

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.

CAUTION — On installations where the pump is installed without a strainer pot, use only 6 in. Schedule 40 PVC

pipe when making the final flange connection. Do NOT use Schedule 80 Pipe, as this can cause

interference with the pump housing.

CAUTION — 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. 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.

10. 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.

CAUTION — 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.

* INCLUDED WITH STRAINER POT

HEX NUT 5/8-11

P/N 356788 *

P/N 356789 *

P/N 356766 *

5/8" ID X 1-5/16" MIN OD

FLAT WASHER

6" ANSI CLASS 150 FLANGE

SUCTION CONNECTION WITH

STRAINER POT

70 DURO NITRILE OR EPDM

1/8" THICK GASKET

5/8" ID X 1-5/16" MIN OD

FLAT WASHER

HEX HEAD CAP SCREW

5/8-11 X 3-1/4" LG

70 DURO NITRILE OR EPDM

1/8" THICK GASKET

6" ANSI CLASS 150 FLANGE

SUCTION CONNECTION WITHOUT

STRAINER POT

5/8" ID X 1-5/16" MIN OD

FLAT WASHER

HEX HEAD CAP SCREW

5/8-11 X 2-1/4" LG

Figure 1.

Figure 2.

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 27 28

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Pentair EQ SERIES User Manual Page 10

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