Global Manufacturing GWE Series User manual

Global Manufacturing Inc.®
1801 East 22nd St
Little Rock, Arkansas 72206
501.374.7416 TEL
800.551.3569 TOLL FREE USA & CANADA
501.376.7147 FAX
AIR BLASTERSVIBRATORSVIBRATORS
GlobalManufacturing.com
Copyright © 2021 by Global Manufacturing, Inc
GWE_03/25/2021 ver 1
Air Blaster
Operating Instructions
Global®
Pneumatic Air Blaster
GWE
Series
GWE4-12-28
GWE4-16-34
GWE4-20-30
GWE6-24-48
GWE6-30-60

2
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
Table of Contents Page
I. INTRODUCTION 3
What is an Air Blaster 3
Applications 3
Safety precautions 4
II. AIR BLASTER OPERATION 5
General overview - How the Air Blaster works 5
Air requirements 5
Air ltration 5
Lubrication 5
When to "re" the Air Blaster 5
Methods of control - Manual versus Automatic operation 6
Use of a quick exhaust valve 6
Required accessories 6
Test ring the Air Blaster 7
III. INSTALLATION 7
Preparation and background 7
Visual inspection 11
Temporary plug removal 11
Installing discharge pipe 11
Mounting the Air Blaster to the discharge pipe 13
General piping instructions for Air Blaster System
air control components 14
Air Blaster control components installation 15
I V. AIR BLASTER START-UP PROCEDURES 19
V. MAINTENANCE 19
VI. DISASSEMBLY AND ASSEMBLY OF THE AIR BLASTER 20
Dismounting the Air Blaster 20
Removing the internal valve 21
Valve disassembly 21
Valve inspection 21
Assembling the valve 22
Assembling the Air Blaster 22
Testing the Air Blaster 23
Replacing the Fill Line with a NEW Fill line 24 -25
Appendix A Troubleshooting 26
Appendix B System Recommendations 27
Appendix C Air Blaster Suggested Spare Parts 28
Appendix D Air Blaster Dimensions 29
Appendix E Air Blaster Plumbing Diagrams 30
Appendix F Air Blaster Performance Data 31
Appendix G Coordinates & Dimensions of Elliptical Openings 32
Appendix H Air Blaster Parts Drawings 33 - 37
QEV Parts Drawing & Dimensions 38
Appendix I Replacing QEV Exhaust Port Bands 39

3
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
I. Introduction
This manual will assist in the installation and operation of Global GWE Series direct blast Air Blasters.
Please read the entire manual to assure proper installation, operation, and maintenance of this equipment.
These instructions apply to the following models:
GWE4.0-12-28: 4" discharge with 12" x 28" (50 liter) pressure vessel
GWE4.0-16-34 4" discharge with 16" x 34" (100 liter) pressure vessel
GWE4.0-20-30: 4" discharge with 20" x 30" (150 liter) pressure vessel
GWE6.0-24-48: 6" discharge with 24" x 48" (300 liter) pressure vessel
GWE6.0-30-60: 6" discharge with 30" x 60" (650 liter) pressure vessel
What is an Air Blaster?
Global Air Blasters are direct blast aerators consisting of a compressed air reservoir with a quick opening
valve that releases the stored air in a sudden, high energy blast. This blast is directed through a discharge
pipe to restore material ow by aerating and dislodging material that is bridging, arching, rat holing, or
clinging.
The direct blast design allows the stored air in the reservoir to escape directly into the discharge pipe
without bends or obstructions that could impede the ow of air. This is important because the quicker the
air discharges, the greater the velocity and force of the blast and, therefore, the greater the amount of
material affected. Air Blasters are activated manually or by a micro-controller based sequencing timer which
controls the ring time interval and sequence of one or more Air Blasters. Global Manufacturing offers two
lines of direct blast aerators, the GWE Series for general use (ambient temperatures below 130°F/55°C)
and the G400 Series for high temperature applications (ambient temperatures up to 400°F/200°C) such
as cement kilns and steel mills where internal kiln temperatures can be as high as 2,000°F or 1,100°C
(mounting instructions must be strictly followed for high temp applications).
Applications:
Air Blasters easily solve bulk ow problems in silos, hoppers, chutes, and storage piles. They are used
where vibration is not practical, or when other methods are too expensive, dangerous, or destructive.
Air Blasters are recommended for a wide range of material clogs and jams and are well suited for large
structures of any type. They are commonly used when it is impractical to vibrate stuck material loose
and are effective for very cohesive, difcult materials. For instance, large concrete bunkers and storage
piles on the ground are impossible to vibrate, but are common locations of ow problems. Wood chips
are very difcult to dislodge by other means, but respond very well to the quick-release Air Blaster. Air
Blasters are also used to periodically aerate material sitting in bins, hoppers, and silos.
Bridging Arching Ratholing Clinging

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Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
DANGER!
The air blast can exceed 1,000 ft/sec (300 m/sec) and 1,500 lb (680 kg) of force. Be
sure to read and follow all safety precautions.
◊ Do not stand in front of any Air Blaster during discharge. The air blast can cause
serious injury.
◊ Use of an Air Blaster to shoot a projectile may cause serious injury or death.
◊ Global Air Blaster pressure vessels are ASME code welded and certied. Do not
weld onto the pressure vessel (tank). Welding to the tank will void ASME
certication and may cause vessel malfunction.
◊ All OSHA, ANSI and owner’s safety procedures and regulations must be followed
during installation, operation, and maintenance of Air Blasters.
◊ Do not discharge Air Blaster into open air without clear warnings to all persons in
the area.
◊ All Air Blasters must be empty of air when being transported, mounted, or
inspected.
◊ Due to recoil, do not discharge an Air Blaster that is not securely mounted to a
structure.
◊ Mount Air Blaster securely on Schedule 40 pipe or equivalent. If the structure
is not sufciently rigid to support the Air Blaster, obtain special mount hardware
from your distributor.
◊ Attach the ring on the end of the Air Blaster tank to a structural support with a
safety cable to prevent the Air Blaster from falling if its supports were
to give way.
◊ Do not enter application structure (i.e. bin or hopper) if Air Blasters are pressurized
and ready to be discharged.
-
◊ Do not allow the internal pressure in a closed storage vessel to exceed its limitations
when the Air Blasters are red. This may cause damage to the storage vessel.
Install exhaust vents if pressures exceed 0.5 psi (0.034 bar). The momentary vessel
pressure following the ring of an Air Blaster can be estimated as follows:
Pm= Air Blaster tank pressure (psi or atm) x Air Blaster tank volume (ft3or liters)
Air Blaster tank volume (ft3 or liters) + Structure volume (ft3 or liters)
SAFETY PRECAUTIONS
WARNING!
Caution!

5
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
II. Air Blaster Operation
General Overview—How the Air Blaster Works:
Each Blaster is charged with compressed air through an air inlet controlled by a 3-way normally open
valve (either a manual valve or a solenoid valve). Once lled, the Air Blaster remains charged as long as
pressure to the tank is maintained by pressure in the ll line. To re the Air Blaster, pressure in the ll
line is suddenly reduced by switching the 3-way valve, evacuating the air in the ll line to the atmosphere.
After ring, re-switching the 3-way valve will restore plant air allowing the Air Blaster to rell. A step-
by-step outline of the lling and discharging process follows:
1. A 3-way valve in the open position allows plant
air to enter the Air Blaster. The pressure of the
plant air insures an air tight seal between the
piston and seat, preventing any air loss while
Air Blaster is waiting to be red.
2. Plant air is forced out through the check valve in
the valve cap to ll the pressure vessel with air.
3. Once lled, the Air Blaster remains on standby
waiting to be red.
4. When the 3-way valve is switched, air in the ll
line is exhausted, causing the air pressure at
the back of the piston to drop.
Air Requirements:
For optimum performance, operate the Air Blaster
on ltered, regulated air between 45 and 125 psi (3
- 8.6 bar). The pressure may be adjusted to obtain
the desired amount of blast force (generally 80-100
psi). Refer to the performance data in Appendix F to
see how the blast force varies with air pressure and
to determine the quantity of air needed to ll the
Air Blaster for each pressure level. A standard air
compressor can be used, however, nitrogen, carbon
dioxide or another inert gas can be used in place
of the normal air supply. The Air Blaster pressure
vessel has a 125 psi pressure relief valve (safety
valve) which can be used to completely exhaust
the compressed air inside the tank without ring
the Air Blaster.
5. Due to the pressure differential created, the
tank pressure forces the piston back into the
open position.
6. The compressed air in the pressure vessel
escapes through the discharge in an explosive
blast that lifts and separates material particles,
restoring material ow.
7. The 3-way valve is re-switched allowing the
plant air to recharge the Air Blaster.
8. The pressure of the plant air forces the piston
to close against the valve seat preventing
contaminants from entering the Air Blaster.
Air Filtration:
Use ltered (40 Micron) compressed air to ll and
operate the Air Blaster.
Lubrication:
Global Air Blasters require no lubrication.
When to "Fire" the Air Blaster:
It is best to discharge the Air Blaster only when
a material ow problem occurs. Firing too often
when the storage vessel discharge is closed is not
recommended. A group of Air Blasters may be red
sequentially using the Global Blaster Master micro-
controller based sequencing timer.
1
1
2 2
Air Blaster lled and in standby Air Blaster discharging Air Blaster recharging
4
6 6
6
6
5
8
7
8 8

6
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
Methods of Control - Manual versus Automatic
Operation:
Global Air Blaster operation can be controlled either
manually or automatically:
Manual Operation: For strictly manual operation
the Air Blaster is controlled by a 3-way normally
open manual valve. This type of valve has 3 ports
- an inlet to connect to the air source, an outlet to
connect to the Air Blaster, and an exhaust port. A ¾"
valve is used for the GWE4.0-12-28, GWE4.0-16-34,
GWE4.0-20-30, GWE6.0-24-48 and GWE6.0-30-60
models. The manual 3-way valve is placed in the
"open" position to ll the Air Blaster and to keep
it pressurized in a standby, ready-to-re mode. To
discharge the Air Blaster, the valve is moved to the
"closed" position, which exhausts the air in the ll
line between the valve and the Air Blaster. This
sudden decrease in line pressure res the Air Blaster.
The valve should be returned to the "open" position
to rell the Air Blaster for its next use. Since GWE
Series Air Blasters come tted with a G-Series Quick
Exhaust Valve, the manual control valve can be
placed up to 100 feet from the Air Blaster.
Automatic Operation: For automatic operation
the Air Blaster is controlled by a 3-way normally
open solenoid valve. It has 3 ports - an inlet to
connect to the air source, an outlet to connect to
the Air Blaster, and an exhaust port. A ¾" Solenoid
is used for the GWE4.0-12-28, GWE4.0-16-34,
GWE4.0-20-30, GWE6.0-24-48 and GWE6.0-30-60
models. The solenoid is controlled electronically
using a Global Blaster Master timer or a manually
triggered momentary electric switch. When not
energized, the solenoid valve is "open", allowing the
Air Blaster to ll with air. The Air Blaster will remain
pressurized in a standby, ready-to-re mode as long
as the solenoid valve is open. To discharge the Air
Blaster, the solenoid is energized by the timer or
switch closure. This closes the solenoid valve, which
exhausts the air in the ll line between the solenoid
and the Air Blaster. This sudden decrease in line
pressure res the Air Blaster. The timer or opening
of the switch de-energizes the solenoid, the valve re-
opens and the Air Blaster is re-lled for its next use.
Factory Installed Quick Exhaust Valve:
The Air Blaster is discharged by reducing the pressure
in the internal valve assembly. The quicker the
pressure drop occurs, the faster the Air Blaster piston
opens, therefore the faster and more forceful the air
blast. To obtain optimum Air Blaster performance
(maximize the force for the air pressure being used),
the device used for exhausting the ll line should
be as close to the Air Blaster as possible. GWE
Series Air Blasters have a factory installed G-Series
Quick Exhaust Valve. This quick exhaust valve is
actuated by the 3-way valve and will quickly reduce
the air pressure in the Air Blaster valve, resulting in
maximum Air Blaster performance even when the
3-way normally open valve (manual or solenoid) is
placed more than 10 feet from the Air Blaster.
GWE models come with the
recommended quick exhaust
valve mounted on the Air Blaster air inlet port.
This ensures optimum performance of your
Global Air Blaster.
Required Accessories:
This manual includes instructions for installing a
complete Air Blaster system. The following air
control components are necessary for Global GWE
Series Air Blasters to be fully operational. They
are available from Global Manufacturing and your
Global distributor:
1. Shut-off Ball Valve: A 2-way shut-off ball
valve is used to isolate the Air Blaster system from
the plant air supply. Install it between the plant air
supply and all other components in the Air Blaster
system. Clearly label and locate the shut-off valve
where it can be quickly and easily reached in an
emergency or for routine maintenance. Use one
shut-off valve for each lter-regulator-gauge used in
the system. A ½" or larger valve is recommended
for all Air Blaster models.
2. Filter-Regulator-Gauge: The filter-
regulator-gauge (FRG) protects the Air Blaster and
airline components by ltering water and particulate
contaminants from the air supply. It also is used
to control the force output of the Air Blaster by
regulating the air pressure (determines the volume
of air stored in the Air Blaster pressure vessel). For
optimum performance drain the lter reservoir of
the FRG daily. For this reason, an FRG that drains
automatically may be desired. We recommend
using one (1) FRG for every four (4) Air Blasters. A
½"or larger FRG is recommended for all Air Blaster
models.
NOTE

7
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
3. Airline Check Valve: The airline check valve
prevents accidental ring of the Air Blaster due to
pressure loss in the main supply line. If the main
airline loses pressure, the check valve maintains
pressure to the Air Blaster by preventing backward
air ow. Use one check valve for every Air Blaster,
and install it between the FRG and the 3-way control
valve. A ½" or larger check valve is recommended
for all Air Blaster models.
4. 3-Way Control Valve: The 3-way control
valve controls the ring of the Air Blaster. When in
the open position, the Air Blaster is lled with air
and maintained in the standby, ready-to-re mode.
When closed, the Air Blaster is discharged. A ¾"
valve can be used and located up to 100 feet from
any GWE series Air Blaster since these models come
with the recommended quick exhaust valve installed
at the factory. For manual ring only, use a manual
valve. For automatic ring, use a solenoid valve.
5. Quick Exhaust Valve: GWE series Air
Blasters have optimum performance because they
have a quick exhaust valve (QEV) mounted at the
Air Blaster pressure vessel air inlet port. This valve
ensures the rapid depressurization of the Air Blaster
valve necessary to re the Air Blaster and produce
maximum blast force. This QEV allows the 3-way
normally open valve (manual or solenoid) to be
placed up to 100 feet from the Air Blaster without
any substantial loss of blast performance.
Test Firing the Air Blaster:
Before mounting the Air Blaster to the discharge
pipe for the rst time (or before remounting after
servicing the Air Blaster valve), do a test ring.
During tests, place the Air Blaster on its side with
the end opposite the discharge opening adequately
supported to withstand the recoil that occurs when
the Air Blaster is red. The pressure relief valve
must be in place. See page 23.
Because of the hazards associated with the
force of the blast and the recoil, do not ll the
Air Blaster pressure vessel beyond 60 psi (4.1
bar) for testing purposes. Minimum pressure for
testing is 45 psi (3.1 bar).
Warn Personnel in the testing area to stay way
from the Air Blaster discharge outlet. The air
blast can cause serious injury.
Wear eye and ear protection. Air Blasters
produce a very loud noise when discharged
in open space.
III. Installation
Preparation and Background:
Air Blaster Placement: To be sure Air Blasters
provide the greatest effect, it is important to properly
locate them on the storage structure. The placement
and quantity of Air Blasters depends on several
factors.
6. Shape of the storage structure: In
general, square structures require more Air Blasters
than round structures because materials tend to
hang up in the corners. Be sure the Air Blasters
will reach all major problem areas such as corners
and the base of any known or suspected areas of
bridging, arching, rat holing, or clinging.
7. The degree of material ow desired: If
Air Blasters are used to constantly move or aerate
the material, or if the sides of the storage structure
must be kept very clean, more Air Blasters will be
needed than if they are only used to restore material
ow after a stoppage.
8. Properties of the bulk material: Each
Air Blaster has an approximate "area of inuence"
which varies with the properties of the bulk material.
As a rule of thumb, for Air Blaster applications,
bulk materials are grouped into the two categories
described as Type I or Type II Material. See table
on next page.
9. Additional Guidelines: If the discharge pipe
will be longer than 6 feet (1.8 meters) in length, it
is recommended that the next larger size Air Blaster
be used.
WARNING!

8
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
Use the following charts and diagrams to assist
in determining the number and placement
of the Air Blasters. For best coverage, make
sure the areas of inuence of the Air Blasters
overlap.
If your bulk material has two
or more of the properties listed
for Type I, consider it a Type I Material. If it has
none or only one of the properties for Type I,
but has several Type II properties, consider it a
Type II Material.
Type I Material
Stored in structure with low sloping walls
Stored in structure with small discharge outlet
Density in excess of 55 lb/ft3 (880 kg/m3)
Clings, regardless of weight
Compacts easily
Greasy or pasty consistency
"Sets up" or hardens during holding
Large chunks or mixed size
Heavily oil or water laden
Type II Material
Stored in structure with high sloping walls
Stored in structure with large discharge outlet
Density less than 55 lb/ft3 (880 kg/m3)
Does not cling
Spongy and does not compact
Dry or powdery
Flows easily under most conditions
NOTE
Area of Inuence
The following chart is provided as a guide for selection. The AREA of INFLUENCE data
is based on lling the Air Blaster at 90 p.s.i. (6.2 BAR).
NOTE
8 feet
Type II
5 feet
Type I
9 feet
Type II
6 feet
Type I
10 feet
Type II
7 feet
Type I
12 feet
Type II
8 feet
Type I
10 feet
Type I
15 feet
Type II
GWE4-12-28
GWE4-16-34
GWE4-20-30
GWE6-24-48
GWE6-30-60
Air Blaster illustration below does not show
the Quick Exhaust Valves, which would be on
the end of the tank away from the discharge.

9
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
Aiming the Air Blast: For Air Blasters to provide
the greatest effect, it is important to aim them
properly. Direct the blast at problem areas such as
corners and the base of any known or suspected
areas of bridging, arching, rat holing, or clinging.
However, directing the blast straight out into the
storage structure most often has disappointing
results. A much more productive blast is one that
skims the internal surface of the structure, forcing
the problem material from the wall and allowing
gravity to pull it down towards the storage vessel
outlet. Therefore, where possible, direct the blast
so it will parallel the inside wall, shearing material
away from the wall to restore material ow. Since
this is often difcult, Global Manufacturing developed
and patented a Tangential Mount system. With
Tangential Mounting the Air Blaster discharge is
directed downward at a steep angle and to the side.
This achieves the following:
1. The "tangential" angling of the discharge (at least
60° below the perpendicular to the storage structure
wall) helps the blast to skim material from the wall.
2. The downward orientation pushes the bulk
material toward the storage structure outlet and
also prevents loosened material from entering the
discharge pipe and possibly contaminating the Air
Blaster valve.
3. The sideward angling of the discharge (same
direction for all Air Blasters on the structure)
helps expand the area of inuence around the
circumference of the structure and promotes a
"cyclone" motion of the material all in one rotary
direction, further assisting in the ow of material.
When using tangential mounting, overlap blast
patterns to give the most effective coverage. Aim
the rst Air Blaster towards the outlet of the storage
structure. Spiral Blasters around the structure,
always keeping in mind the area of inuence.
Top View
Air Blaster
Model
Material
Type
Number of Air Blasters
Recommended per Bin/Hopper Area of
Inuence
Diameter of Structure
ft 3 5 10 15 20 25 30 35 40 45 50
ft m
m 1 1.5 3 4.5 6 8 9 10.6 12 14 15
4" Discharge
GW4-12-28 I * 3 4 6 10 12 14 16 18 20 25 5 1.5
II * 2 3 4 5 6 7 8 10 11 12 8 2.4
GW4-16-34 I * 2 3 6 9 11 13 14 17 18 22 6 1.8
II * 1 2 3 4 5 6 7 8 9 11 9 2.7
GW4-20-30 I * 2 4 6 8 10 11 12 15 16 18 7 2.1
II * 1 2 3 4 5 6 7 8 9 10 10 3.0
6" Discharge
GW6-24-48 I * 2 3 5 6 8 9 10 12 14 16 8 2.4
II * 1 2 3 4 5 6 7 8 9 10 12 3.7
GW6-30-60 I * 1 2 3 4 5 7 10 10 11 12 10 3.0
II * 1 1 2 2 2 2 3 4 5 5 16 4.9
*This application is too small for this model Air Blaster.

10
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
To assist with mounting and aiming of Air Blasters,
Global Manufacturing offers Tangential Mount
Discharge Assemblies. These mount assemblies
which can be welded or bolted to the storage
structure direct the air blast downward (60° below
the perpendicular to the wall) and 20° to the right.
The discharge assembly supports the Air Blaster as
well (see pg 11 for adequate structure wall thickness)
and includes a mount ange for the Air Blaster and
all hardware. Shown is a Tangential Mount Discharge
Assembly with a 4" discharge. Also available for a 6"
discharge. (Either a ring gasket or full-face gasket
is supplied with discharge assembly.)
Examples of Air Blaster System
Congurations using
Tangential Mounting
Air Blaster Orientation: In general, it is best to mount the Air Blaster so the discharge pipe is straight
and as short as possible. This allows the maximum blast force to be applied to the material in the storage
vessel. A downward slant to the discharge pipe helps prevent the stored material from contaminating the
Air Blaster. However, due to space limitations, these guidelines cannot always be followed. Sometimes
the discharge pipe will have to have a bend or be longer in length, and the Air Blaster may need to be
oriented at different angles. If the air source is of poor quality, containing much water, or if condensation
is a problem, the Air Blaster pressure vessel will need to be drained occasionally. To assist in draining the
tank, three accessory ports are provided; one on the side of the tank, one on the end near the discharge,
and one on the end near the air inlet.
When mounting, be sure the Air Blaster
is oriented so two of these ports are
pointed downward. Once the Air Blaster
is mounted, place a drain valve in the
lowest of the three ports. One of the
other accessory ports is used for the
safety relief valve (provided with the
Air Blaster). Air Blasters manufactured
before May 2001 have only two accessory
ports. They do not have the port on the
end of the tank opposite the discharge
pipe (next to the current air inlet port).
4.0"
Diameter
Pipe
9.0" Diameter
Nuts
8"
30°
16"
Gasket
Lock Washers
Flange Connection
for Air Blaster
Bolts
3/8"
12.00"
12.00"
Pressure
Relief Valve
Drain
Valve

11
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
RequiredStorageStructureWallThickness:
The storage structure wall must be rigid enough to
support the weight of the Air Blaster and withstand
the forces that occur during discharge. Reinforce
structure walls less than 3⁄16" (5 mm) thick. Please
see minimum thickness requirements below.
Tank Mount Hardware is available from Global
Manufacturing to help support the weight of the
Air Blaster and withstand the ring forces. Contact
Global Manufacturing or your distributor for mount
hardware.
Air Blaster Plumbing: As described under
"Required Accessories" (page 6) there are a number
of air control components necessary for full operation.
To ensure safe operation and optimum performance
of your Air Blaster system, install these air control
components as shown in the plumbing diagrams in
Appendix E. For GWE Series Air Blasters refer to the
"Using a Quick Exhaust Valve Air Blaster Plumbing
Diagram", Appendix E. This gives the highest level
of performance while allowing the control valve
(manual or solenoid) to be located up to 100 feet
from the Air Blaster.
Visual Inspection: Please note the condition of
the shipping container before opening. The shipping
container will include the Air Blaster, pressure relief
valve and operating instructions. Make sure all parts
are located before discarding the container. Inspect
the Air Blaster for any damage, such as dents,
that might have occurred during shipment. Any Air
Blaster accessories (valves, discharge assemblies,
timers, etc.) ordered from Global Manufacturing
will be packaged separately. Please verify that all
items ordered have been received. Contact Global
Manufacturing Customer Service or your distributor
if there are any missing parts, apparent damage,
or other irregularities. Report any damage to the
delivery service. Complete any necessary claim
forms.
Temporary Plug Removal: Tank openings are
tted with plastic plugs which are removed prior to
attaching the air line, discharge pipe, or pressure
relief valve. The small port at the end of the tank
near the discharge opening has a steel plug. This
is a permanent plug that should not be removed
unless this port is needed for a drain valve or as
an alternate location for the pressure relief valve.
Installing Discharge Pipe: The discharge
assembly must be able to support the Air Blaster
and directs the air blast towards the problem area.
Structure Wall Opening: Instructions for
making the opening for the discharge pipe in the
storage structure wall are not specic because of
the wide variety of structures, wall materials, etc.
Generally, the hole in the wall for the discharge pipe
will be circular if the pipe is entering perpendicular to
the wall or elliptical if using Global Manufacturing’s
patented Tangential Mounting. The chart in Appendix
G denes the height and width of the ellipse for each
of the three discharge pipe sizes offered. These are
for a 60° downward slope (from perpendicular to
the wall surface) and a 20° rotation to the right.
Before working on any storage structure, lock
out - tag out any equipment that loads or unloads
material from the structure.
If equipment will be installed in an enclosed
area, test gas levels or dust content before using
a cutting torch or welding equipment. Using a
cutting torch or welding in an area with sufcient
gas or dust levels can cause an explosion.
WARNING!
Air Blaster
Mount Hardware
Air Blaster Mount Hardware
cannot be used with our
standard tangential mount
discharge assemblies
Air Blaster
Model
Weight Minimum Wall
Thickness
lb kg inches
GWE4-12-28 94 43 3⁄16
GWE4-16-34 116 53 3⁄16
GWE4-20-30 128 58 ¼
GWE6-24-48 260 118 ¼
GWE6-30-60 554 251 ¼

12
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
Before cutting a hole in the structure wall, be
sure there is adequate space to mount the Air
Blaster to the discharge assembly.
Discharge Pipe Features: If not using
a discharge assembly provided by Global
Manufacturing, please use the following guidelines
in constructing a discharge pipe:
1. Use schedule 40 steel pipe for most applications.
2. Avoid sharp bends in the discharge pipe. Where
bends are necessary, use a long radius elbow for a
more effective blast.
3. Keep the length of the pipe as short as possible.
The longer the discharge pipe, the more the blast
force is diminished. If the pipe must be more than
6 feet (1.8 m) long consider using the next larger
size Air Blaster.
4. When determining the pipe
length keep in mind the length
of pipe needed to give proper
clearance for the Air Blaster
tank to clear the structure
wall, the thickness of the
wall, and the amount of pipe
that will be extending into the
storage area.
5. The pipe should extend into storage area only
far enough to clear the inner wall.
6. Use a standard slip-on pipe ange to mount
the Air Blaster to the discharge pipe. Select the
size (4.0" or 6.0") to match the pipe size and the
mounting ange on the Air Blaster.
Installing the Global Tangential Mount
Discharge Assembly:
7. Determine the location of the Air Blaster discharge
pipe. Be aware of structural obstacles which may
interfere with mounting the Air Blaster to the mount
ange on the end of the discharge pipe.
8. Using the Coordinates and Dimensions of
Elliptical Openings in Appendix G, make a template
of cardboard or other durable material. Enlarge the
elliptical shape of the pattern by ½" (13mm) for
ease of tting during installation. The pattern may
also be used to locate bolt holes if the mount plate
is to be bolted to the structure wall.
Important!
9. Use the pattern to mark the opening on the
structure wall. When working from the outside of the
structure, the long diameter of the elliptical shape
should run from upper left to lower right (unless you
have ordered a special conguration).
10. Cut the hole in the structure wall.
11. Fit the discharge pipe into the wall so the mount
plate is ush with the outer wall surface. Evaluate the
amount of pipe extending into the storage chamber.
Cut the pipe using a square cut (perpendicular to the
length of the pipe) so the lower edge is ush with
the inside of the structure wall. The upper edge will
protrude into the ow area slightly.
12. Be sure the discharge assembly is in place with
the mount plate ush with the outer wall surface.
Seal weld the mount plate to the wall.
Cut
Excess
TOP
AIR BLASTER SIDE
Tank
Flange
Air Blaster Coupling
Discharge
Pipe
Mount Plate
Pattern
Ellipse
Discharge Pipe End
Air Blaster Tank
Air Blaster
Mount Flange
1/4"
Connection
to
Air Blaster
Hopper
Wall
Cut
Ellipse
Cut
Excess
Mount
Plate
Discharge
Pipe

13
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
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If the storage structure wall
is too curved and leaves an
excessive gap for welding, trim the mount plate
with a torch to the required size to reduce the
gap as shown below. Do not trim the mount plate
closer than 2" (50 mm) from the discharge pipe.
The remaining pipe must overlap the mounting
surface by at least ½"(12 mm). After trimming
the mount plate, reposition the discharge
assembly in the structure wall and seal weld the
mount plate to the outer wall surface.
If the discharge assembly will
be bolted to the structure wall,
use at least four (4) ⅝" (16mm) bolts to secure
the mount plate. Drill holes in mount plate at
least 1- ½"in from each corner. Anchor bolts
must extend at least 3" into the concrete wall.
Otherwise the bolts should extend through the
wall and be secured with lock washers and nuts.
Use gasket material between the mount plate
and structure wall or apply sealant to the mount
plate-wall joint to prevent air or material leakage.
Mounting Air Blaster to the Discharge Pipe
The Air Blaster coupling ange is connected to a
discharge pipe equipped with a mount ange. Be
sure to rotate the Air Blaster to place the small ports
facing downward (in case they will be needed to
drain the Air Blaster tank at a future time).
The discharge pipe must be securely mounted to
the storage structure wall. If any doubt about the
rigidity of the mount exists, Global Manufacturing
strongly recommends using additional mount
hardware to secure the Air Blaster. Contact
Global Manufacturing or your distributor.
1. Secure the Air Blaster coupling ange to the
mounting ange on the discharge assembly using
a gasket (either full-face or ring gasket) and the
Grade 5 bolts, nuts, and washers provided. Use
bolts no smaller than ⅛" (3 mm) less than the
coupling bolt hole diameter. The bolts are tightened
in three stages in a crisscross pattern to ensure
even tightening.
2. Be sure to install a safety cable to keep the Air
Blaster from falling should it break loose from its
mount. Use the ring on the end of the tank for this
purpose. Securely attach the other end of the safety
cable to a structural member.
NOTE
WARNING!
Before Flame-cut
After Flame-cut
Flame-cut
2”
min.
Air Blaster
Coupling
Gasket
Seal
Mounting
Surface
Mounting
Flange
Air
Blaster
Discharge
Pipe
Tank Flange
Before Flame-cut
Flange
Mount Plate
Discharge Pipe
Connection
to
Air Blaster
Hopper
Wall
Cut
Ellipse
Mount Plate
Discharge
Pipe
⅝" (16 mm) Bolts
minimum
Gasket
Cut
Excess
Need overhang
(gray area) to
prevent material
from entering
discharge
NOTE

14
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
If the Air Blaster is mounted more than 6" (152
mm) above the ground, secure the Air Blaster
to a structural member with a safety cable to
prevent the Air Blaster from falling and causing
serious injury if it came loose from its mount.
If a safety cable kit has been purchased from Global
Manufacturing, attach one end of the cable to the
steel ring with the provided clamp. The steel ring can
be welded to or looped around a structural support.
Using the other clamp, attach the other end of the
cable to the safety tab on the end of the Air Blaster
tank. Adjust the length of the cable to provide some
slack. It should be short enough, however, to stop
the Air Blaster from falling and hitting a person.
3. If a drain valve (not supplied) is to be used,
install it in the lowest of the three small accessory
ports (The tank should be mounted so two of these
WARNING!
Important!
ports point down). Install the pressure relief valve
(safety valve) in the side accessory port, or if that
one has been used for a drain valve, in the unused
port on either end of the tank (will have to remove
the steel plug).
Be sure to apply Teon®tape to all threaded
connections.
General Piping Instructions for Air Blaster
System Air Control Components: To ensure
safe operation and optimum performance of your
Air Blaster system, install necessary air control
components as shown in the plumbing diagrams in
Appendix E.
4. The GWE Series Air Blasters come standard with
Global’s G-Series Quick Exhaust Valve permanently
mounted. This patented valve was designed
specically for use with Global Air Blasters. It
evacuates air from the Air Blaster valve, guaranteeing
a full, powerful blast even when the control valve is
up to 100 feet* from the Air Blaster. The distance
between the other components is not important.
Only the sequence of the components along the
air supply line is important. See illustrations on
next page, "Using a Quick Exhaust Valve".
NOTE
*When the 3-Way Control Valve
(Solenoid or Manual Valve) is a
signicant distance from the Air Blaster, there
will be a time delay between the closing of the
Control Valve and the actual discharging of the
Air Blaster. This may need to be addressed with
automatic systems.
5. Do not connect more than four Air Blasters to a
single Filter-Regulator-Gauge / Shut-off Valve pair.
6. The air supply lines required for plumbing Air
Blasters and control components must be rated for
a minimum of 150 psi (10.3 bar). Use ¾" lines or
greater between the 3-way control valve (manual
or solenoid) and the Air Blaster or Quick Exhaust
Valve. ½" lines or greater can be used everywhere
else (between the control valve and the plant air
source). If a timer is used to control Air Blaster ring
sequence and time delay between blasts, wire each
solenoid valve to the appropriate timer terminals.
Wiring must adhere to all appropriate electrical
standards.
Steel Weld
Ring
Swaged
End
Safety
Cable Cable
Clamp
Air
Blaster
Tank
Pressure
Relief Valve
Drain
Valve

15
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
Air Blaster Control Component
Installation:
Install each control component using Teon® tape
on all threaded connections.
Be sure all connections are air tight. Any leak
along the Air Blaster air supply line may cause
the Air Blaster to discharge unexpectedly
causing injury.
1. Shut-off Ball Valve Installation: The
2-way shut-off ball valve is used to isolate the Air
Blaster system from the plant air supply. A ½" valve
is recommended. Locate it between the plant air
supply and all other components in the Air Blaster
system. Each shut-off valve should control no more
than four Air Blasters. Be sure to clearly label
the shut-off valve and place it where it can be
quickly and easily reached in an emergency
or for routine maintenance.
WARNING!
Using a Quick Exhaust Valve
GWE
Safety Cable
Timer
Check Valve
Filter
Regulator
Shut-Off Valve
Pressure Relief Valve
Solenoid Plant
Air
¾"
¾"
½"
½"
¾"
2. Filter-Regulator-
Gauge: Install the filter-
regulator-gauge (FRG) in
the air supply line between
the shut-off ball valve and
the check valve. The FRG is
designed to prevent damage
to the Air Blaster and control
components by ltering water
and particulate contaminants
from the air supply. A ½"FRG
is recommended. Place the FRG
where the lter reservoir can be
drained daily
(unless an
auto-drain
model is
used). The
FRG has an
arrow cast in
the housing,
which
indicates
the required
direction
of air flow.
It will not
function if
it is installed in the reverse
direction. After installation
set the air pressure to the
Air Blaster between 80 and
100 psi (5.5 and 6.9 bar) for
most applications (If using a
solenoid valve in the system,
the pressure should not be set
at or below 40 psi).
Closed
Open
- Factory
Installed

16
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
3. Check Valve Installation: The check valve
prevents accidental ring of the Air Blaster if an
unexpected decrease in line air pressure occurs. If
the pressure drops in the air supply, the check valve
maintains pressure to the Air Blaster by preventing
the backward ow of air. Install the check valve in
the air supply line between the FRG and the 3-way
control valve (manual or solenoid). A ½"valve is
recommended. Be sure to install the valve with the
cast-in arrow pointing in the direction of the air ow.
If used in a horizontal line, be sure the hex head plug
is on top, so the check valve will close properly. In a
vertical line, the air ow must be upward in the line.
Do not install in a vertical line where the air
ow is downward, because the check valve will
not close properly.
Do not install with the hex head plug on the
bottom or pointing downward, because the
check valve will not close properly.
4. 3-Way Normally Open Valve Installation:
This valve controls the operation of the Air Blaster.
Use either a manual valve for manual control or a
solenoid valve for remote or automatic control. The
solenoid valve is wired to either a remote manually
triggered momentary switch or a micro-controller
based sequencing timer such as Global’s BLASTER
MASTER timer. Be sure the controller output is
compatible with the electrical requirements of the
solenoid valve. Follow all applicable local wiring
codes.
The control valve is installed in the air supply
line between the check valve and the Air Blaster.
Location depends on whether a quick exhaust valve
is being used or not.
GWE Series Air Blasters come standard with a
Global G-Series Quick Exhaust Valve. Install a ¾"
3-Way Control Valve within 100 feet (30 meters) of
the Air Blaster (all models). If a solenoid is used, be
sure it is set in the normally open position (‘3-NO’
is indicated on the small white tab visible from the
top). Use a ¾" x ½" bushing to connect the ½"air
supply line to the valve air inlet port (Solenoid port
labeled ‘1’). The ¾" line connecting the Solenoid
to the Air Blaster quick exhaust valve is connected
to the valve outlet (Solenoid port labeled ‘2’). See
chart on next page.
Manual 3-Way Valve
Handle in "Fill" Position
To Air Supply
Exhaust Port
To Air Blaster
Port 3
Exhaust Port
Port 1
to
Air Supply
3/4" 3-Way Normally Open Solenoid Valve
Port 2
to
Air Blaster
Warning!
Control Valve Illustrations:
Manual 3-Way Valve
¾" 3-Way Open Solenoid Valve
Check Valve in Proper Orientation
AIR FLOW
AIR FLOW
AIR FLOW
AIR FLOW
Check Valve in Improper Orientation

17
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
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Solenoid Connections for GWE Series Air Blasters
Air Blaster
Model
3-Way
Valve
Size
Solenoid
Inlet Port
Label
Inlet
Bushing Size
Solenoid
Outlet Port
Label
Air Line Size for
Remote Mount
> 10’
GWE4.0-12-28 ¾" 1 ¾" x ½" 2¾"
GWE4.0-16-34 ¾" 1 ¾" x ½" 2¾"
GWE4.0-20-30 ¾" 1 ¾" x ½" 2¾"
GWE6.0-24-48 ¾" 1 ¾" x ½" 2¾"
GWE6.0-30-60 ¾" 1 ¾" x ½" 2¾"
Solenoid
Valve
Size
Exhaust
Port
Label
Street
Elbow
Size
Nipple
Size
¾" 3 ¾"
pn 293412
¾" x 3"
pn 294612
Important!
The solenoid valve may not operate if the inlet
pressure is less than 40 psi (2.75 bar).
Contamination Protection: Connect a street
elbow to the valve exhaust port. Position the elbow
to point downward and add a 3" long nipple for
exhaust extension. Refer to the table below for the
appropriate size ttings to be used. The elbow with
extension will keep contaminants from entering the
valve through the exhaust port. Using a mufer
to protect the exhaust port is not recommended,
because it will reduce Air Blaster performance by
signicantly impeding the exhaust air ow.

18
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
. Quick Exhaust Valve Installation:
GWE-Series Air Blasters come standard with a
Global G-Series Quick Exhaust Valve permanently
mounted. This patented valve was designed
specically for use with Global Air Blasters. It
quickly evacuates air from the Air Blaster valve,
guaranteeing a full, powerful blast even when the
control valve is up to 100 feet from the Air Blaster.
This unique valve also ensures closure of the Air
Blaster valve immediately after the blast, which
helps to keep contaminants from entering the tank.
This feature of immediate valve closure, without
the use of a spring, is unique to Global GWE Air
Blasters. Other manufacturers use a spring which
can break, causing downtime. The ¾" air supply line
from the 3-Way normally open valve is connected
at the QEV inlet port.
Important!
The G-Series Quick Exhaust Valve is tted with
two exhaust port bands. If "Replace Bands
Now!" is visible, the outer band is missing
and MUST be replaced immediately in
order for the valve to work properly.
1" G-Series Quick Exhaust Valve
Plant Air Inlet
"IN"
To Air Blaster
"AB"
Exhaust
If the QEV looks like
this image - replace
the two exhaust
bands immediately.
When the ‘outer band’ is destroyed, the ‘inside
band’ is exposed. This remaining band should
have the words "Replace Band Now" written
on it. Replace both bands. There must be two
exhaust bands on the QEV for it to operate
correctly. See page 37 for instructions.
There must be two bands on QEV
Outer Band
Illustration shows
band has been
damaged and needs
to be replaced.
Inner Band
"Replace Band Now"
is written on the
inner band.

19
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
IV. Air Blaster Start - Up Procedures
1. Make sure all connections for Air Blasters,
discharge assemblies, and air and electrical
components are secure.
2. Check all 3-Way Control Valves to ensure they
are in the open position.
3. Set Filter-Regulator-Gauge (FRG) to minimum
pressure position.
4. Open the Shut-off Ball Valve to allow plant air to
enter the system.
5. Set the FRG to the pressure desired for charging
the Air Blasters: Minimum pressure = 40 psi (2.7
bar). Solenoid valves might not operate consistently
at lower pressures. Maximum pressure = 125
psi (8.6 bar). The Air Blaster tank is rated for
125 psi. Its safety relief valve will release and
depressurize the tank if the pressure exceeds 125 psi.
Pressure between 80 and 100 psi will give excellent
performance for most applications.
6. Check all airline pipe connections for leaks. Mark
all leaks found and de-pressurize the system by
closing the 2-Way Shut-off Ball Valve, and re Air
Blaster or use pressure relief valve to depressurize
system.
7. Repair any leaks found in Step 6 and return to
Step 3. If no leaks were found, continue with Step 8.
8. Test each Air Blaster separately. For manual
control valves, simply move the lever to the closed
position to re the Air Blaster. Return the lever to
the open position to rell the Air Blaster. If solenoid
control valves are used, activate the solenoid by
pressing the remote switch or by pressing the
appropriate timer switch while the timer is in
manual mode. Refer to the Troubleshooting Guide,
in Appendix A, if the Air Blaster does not re or has
inadequate force.
9. If the Air Blaster System is to be controlled by
a micro-controller based sequencing timer, such as
the Global Blaster Master Timer, refer to the timer
instruction manual to congure the timer for Air
Blaster ring sequence, time between blasts, and
time between cycles. Test the timer conguration and
adjust as necessary to obtain the desired results.
10. After satisfactory completion of the above Steps,
your Global Manufacturing Air Blaster system is
ready for use.
To keep contaminants from entering the valve, Air
Blasters must be pressurized prior to operating
any material ow system.
V. Maintenance
Preventive maintenance is important to ensure
effective and safe performance of the Air Blaster
system.
Lubrication: No lubrication required.
Air Control Accessories: Check periodically to
make sure all valves are clean and functional. The
reservoir on the Filter-Regulator-Gauge should be
drained daily. Clean unit and lter with warm water
and mild soap as needed. Blow with compressed
air to dry. Use a 40 micron lter when the lter
element needs replacing.
Air Blaster Mounting: All mounts must remain
rigid. Check periodically and retighten as necessary.
Replace any damaged or rusted parts.
Air Blaster Internal Valve: The Air Blaster valve
is designed to provide many years of maintenance
free operation. Should the Air Blaster malfunction
or performance appear to decrease, inspect the
internal valve for wear or contamination. If the Air
Blaster is used in a harsh environment, inspect Air
Blasters in the system periodically - semi-annually
or annually - during routine plant maintenance
periods. This rotating inspection schedule should
indicate if the Air Blasters are showing any signs
of wear or contamination that will need attention.
Follow the instructions in section VI Disassembly
and Assembly of the Air Blaster.
Spare Parts Recommendations: See System
Spare Parts Recommendations in Appendix C. If the
Air Blaster is not used in a harsh environment, an
inventory of spare parts may not be needed.
Important!

20
Global Manufacturing, Inc ®800.551.3569 TOLL FREE USA & CANADA
1801 East 22nd Street 501.374.7416 TEL [phone] FAX
Little Rock, AR 72206 USA www.GlobalManufacturing.com
6. Using the hoist, support the Air Blaster by the
ring on the end of the tank. Remove the safety
cable.
7. Remove the mounting bolts previously loosened
and lift the Air Blaster clear of the discharge pipe.
If the gasket is damaged, discard it and use a new
gasket of the same type when remounting the Air
Blaster. If the gasket is in good condition, it can be
reused when remounting the Air Blaster.
8. Lower the Air Blaster to the ground and transport
it to an appropriate working area.
Removing the Internal Valve:
Tools Required: Two (2) each socket or box end
wrench, 24" pipe wrench, and large adjustable
wrench. Refer to the Air Blaster parts list in Appendix H.
NOTE
The G-Series QEV and internal
fill line do not have to be
removed to access the internal valve.
Important!
Do not remove the ll line or QEV from tank.
1. Remove the bolts that fasten the coupling to the
tank ange. Remove the coupling and the gasket
from the Air Blaster. If the gasket is damaged,
discard it and use a new gasket of the same type
when assembling the Air Blaster. If the gasket is in
good condition, it can be reused.
VI. Disassembly and Assembly of the
Air Blaster
Dismounting the Air Blaster:
Tools Required: Two (2) each socket or box
wrench, 500 lb (230 kg) capacity hoist.
The Air Blaster is red by a sudden pressure
drop in the air inlet line, therefore, all pressure
within the tank must be relieved before the
tank can be dismounted. Failure to relieve air
pressure may result in unexpected Air Blaster
discharge, causing serious injury or death to
nearby persons.
1. Turn off the air supply to the Air Blaster using
the shut off ball valve.
2. Fire the Air Blaster to relieve all the pressure
within the tank. If it is not possible to re the Air
Blaster, pull the ring on the pressure relief valve
mounted on the Air Blaster tank.
3. Remove the pressure relief valve from the Air
Blaster.
4. Disconnect the air line from the G-Series Quick
Exhaust Valve (QEV) Air Blaster air inlet port. Do
not remove the QEV from the Air Blaster.
5. Loosen the mounting bolts connecting the Air
Blaster coupling to the discharge pipe. Be sure not
to loosen the bolts connecting the coupling to the
Air Blaster tank.
Coupling
Remove
these bolts
Gasket
Tank
flange
Pull
Pressure Relief Valve
125 PSI Maximum
Tank
Loosen discharge
pipe flange bolts
Tank
Tank
flange
bolts
Hopper
Discharge Pipe
WARNING!