Leslie Controls AFG-2 User Manual

12501 Telecom Drive, Tampa Florida 33637

Installation, Operating and

Maintenance Instructions

Supplement

30/1.5.1

Rev. 2

SMALL FLOW AIRMATE PRESSURE REDUCING

VALVES AND AIR LOADERS

CLASSES A-2, AG-2, AF-2, AFG-2, ETC.

INTRODUCTION........................................................................................................................................2

INSTALLATION.........................................................................................................................................3

OPERATION ...............................................................................................................................................3

MAINTENANCE.........................................................................................................................................3

DISMANTLING.......................................................................................................................................3

CLEANING OR REPLACING PARTS.................................................................................................4

DIAPHRAGM REPLACEMENT ..........................................................................................................4

Integral Filter Types – Class AF-2, etc.

REASSEMBLING ...................................................................................................................................4

Integral Filter Types – Class AF-2, etc.

TABLE OF CONTENTS

......................................................................................................4

......................................................................................................4

F

IGURE 1 - INSTALLATION DETAIL

F

IGURE 2 - CLASS

F

IGURE 3 - PARTIAL ASSEMBLY OF

F

IGURE 4 - CLASS

A-2 R

EGULATOR

P-2 P

ANEL LOADER

LIST OF ILLUSTRATION

..................................................................................................................3

................................................................................................................3

AF-2 T

YPE SHOWING ADDITIONAL PARTS IN FILTER ASSEMBLY

............................................................................................................4

............4

INTRODUCTION

This Installation, Operation, and Maintenance Manual is
intended to be as complete and up to date as possible. It
covers installation, operation, and maintenance procedures
for Leslie Controls, Inc. Small Flow Airmate Pressure
Reducing Valves. Leslie reserves right to update this
manual and other product information concerning
installation, operation, and/or maintenance, at any time and
without obligation to notify product owners of such
changes.

Leslie is not responsible for injury to personnel or product
damage due to improper installation, operation, and/or
maintenance Leslie Controls, Inc. Small Flow Airmate
Pressure Reducing Valves. All installation, operation, and
maintenance procedures should only be performed by
trained/certified personnel. All personnel performing these
procedures should completely and carefully read and
understand all supplied materials before attempting
procedures. All personnel should pay strict attention to all
Notes, Cautions, and Warnings that appear within
procedures detailed in this manual.

Leslie welcomes user input as to suggestions for product or
manual improvement.

Contact Information

For information concerning warranties, or for questions
pertaining to installation,
Operation or maintenance of LESLIE products, contact:

LESLIE CONTROLS INC.
12501 Telecom Drive
Tampa, FL 33637

USA Phone: [phone]
USA Fax: [phone]

www.LESLIECONTROLS.com
To order replacement parts, contact LESLIE CONTROLS
at address listed above, or call toll free:

USA/Canada/Caribbean Phone: [phone]

Note: Please include model and serial number of unit for
which parts are being ordered. If ordering by phone, please
have this information readily available.

GENERAL NOTES AND WARNINGS

Notes:

• If questions are not answered by this manual, or if

specific installation, operation, and/or maintenance
procedures are not clearly understood, contact
Leslie Controls, Inc. for clarification before
proceeding.

• If unit is damaged during installation, operation, or

maintenance, complete following steps:

1. Turn off and lock out pneumatic supply to unit in
an approved manner.

2. Turn off all incoming valves.

3. Contact in-house maintenance personnel or Leslie
Controls, Inc. for instructions.

Note: Throughout this manual, warnings will be
denoted by BOXES

Piping system must be adequately designed and

supported to prevent extraordinary loads to pressure

It is strongly recommended that this document be reviewed
before attempting any installation, operation, or
maintenance procedures.

CAUTION!

equipment.

2

Figure 1 - Installation Detail

INSTALLATION

Install as shown in Fig. 1. Use non-corrosive fittings and
piping throughout. Use fine wire mesh or poromet filter
screen.

Note: Strainer, shown for Class A-2 Types, is not
necessary for Filter Type Classes, AF-2.

* When used with air motors or pulsating equipment,

line “A” should be of a sufficient length and diameter
to provide a reservoir. On close coupled installations
install small reservoir.

OPERATION

1. Open inlet supply valve to regulator.

Note: Supply pressure should be at least 5 PSIG above
maximum controlled pressure desired.

2. Open outlet stop valve partially.

3. Turn handwheel (1) clockwise to start flow through
regulator. Adjust for desired controlled pressure.**
Tighten locknut (2). Open outlet to stop valve fully.

** Turn handwheel clockwise to increase controlled

pressure; counterclockwise to decrease.

MAINTENANCE

DISMANTLING

1. Shut-off air supply. Loosen locknut (2). Relieve all

adjusting spring compression.

2. Disassemble adjusting spring case (8), top spring seat

(4), adjusting spring(s) (6) and nozzle-diaphragm
assembly from main body.

3. Grasp internal rib of aspirator plate (14) (marked “Lift

Here”) and lift out of main body. Remove gasket (12).

4. Unscrew valve seat (16) with “O” Ring (17) from

main body. Lift out main valve (18), with “O” Ring
(19), and main valve spring (20).

Figure 2 - Class A-2 Regulator

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