Liberty Pumps GR22-LE, GR22NS-LE, GR22-FL, GR22NS-FL, GR22-S Installation Manual

Installation Instructions

Guide Rail Systems

Models

GR22-LE 2” Discharge

Fits LE70, LE100, LEH100, LEH150, and LEH200 Series Pumps

GR22NS-LE 2” Discharge Non-Sparking

Fits XLE50, XLE70, XLE100, and XLE150 Series Pumps

GR22-FL 2” Discharge

Fits FL50, FL60, FL70, FLH60, FL100, FL150, and FL200 Series Pumps

GR22NS-FL 2” Discharge Non-Sparking

Fits XFL50, XFL70, XFL100, and XFL150 Series Pumps

5693000G

GR22-S 2” Discharge

Fits LE40, LE50, and PRG Series Pumps

Features

• Heavy-duty cast iron construction

• Accommodates single 1-1/4” guide pipe and 2”
discharge pipe (depending on model)

• Auto-alignment feature

• Upper rail support bracket

• Includes sealing grommet

• Available in non-sparking version for hazardous
locations with heavy-duty bronze claw

7000 Apple Tree Avenue
Bergen, NY 14416
ph: 800.543.2550
fax: [phone]
www.libertypumps.com

Keep this manual handy for future reference.

Copyright © Liberty Pumps, Inc. 2018 All rights reserved.

Apply grease to sealing

grommet face from

provided packet before

lowering pump(s) into tank.

A

A

IMPORTANT: All Liberty Pump models are supplied with their own separate Installation/Operation/Maintenance manual(s). Ensure

receipt of these manuals, and that they are read and understood prior to installing this unit. For questions, call Liberty Pumps
customer service at 800-543-2550.

GR22 Assembly

The GR22 quick disconnect assembly provides easy installation
and removal of the pump. When installed correctly, it will seal and
provide support for the pump. Please ensure that installation is
done per the diagrams shown.

The rail system comes in three parts:

Base: This i
pumping chamber or vault. One-half inch studs are
recommended, spaced at 5.5” apart.

Pump mounting

mounting claws. The LE claw has a larger flange and fits LE-Series
sewage pumps. The FL claw mates to FL-Series effluent pumps.
Both GR22-LE and GR22-FL claws are threaded 2” FNPT for
optional mounting applications. The GR22-S claw has a 2” NPT
male thread for pumps with threaded discharges.

Support bracket: A smal
support the top end of the 1-1/4” guide rail pipe (pipe not
included). This casting needs to be mounted to a support
structure, bar stock, angle iron, or other means that attaches to
the side walls of the vault.

Preparation

The claw have a sealing grommet attached to it that provides the
seal between the claw and base unit. The sealing grommet should
be cleaned and greased before every new installation with a
silicone based grease which is provided. For the GR22-LE and
GR22-FL, a gasket should be used between the claw and pump—
the gasket and mounting hardware are provided with the pump.
The stock flange that is shipped with the pump should be
removed and replaced with the claw.

s the large casting that is mounted to the floor of the

claw: Liberty Pumps offers three different pump

l casting is supplied and is used to

Installation

Note: a heavy guide rail pipe of galvanized or stainless steel is
recommended.

Support bracket shown in guide pipe rail

Model GR22-S

The Model GR22-S features a split design for pumps without a
flange. The threaded base can be screwed into the pump’s
discharge and then the claw and gasket can be mounted.

– 2 – Copyright © Liberty Pumps, Inc. 2018. All rights reserved. 5693000G