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Global Manufacturing, Inc 

®

 

   800.551.3569  

TOLL FREE USA & CANADA

1801 East 22nd Street   

   501.374.7416  

TEL    

501.376.7147  

FAX

Little Rock, AR 72206 USA   

   w w w. G l o b a l M a n u f a c t u r i n g . c o m

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 flange 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 flange 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 

flange 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 fitting 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 configuration).

10.  Cut the hole in the structure wall.

11.  Fit the discharge pipe into the wall so the mount 

plate is flush 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 flush with 

the inside of the structure wall. The upper edge will 

protrude into the flow area slightly.

12. Be sure the discharge assembly is in place with 

the mount plate flush 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

Summary of Contents for GWE Series

Page 1: ...REE USA CANADA 501 376 7147 FAX A I R B L A S T E R S V I B R A T O R S V I B R A T O R S 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 ...

Page 2: ... Air Blaster to the discharge pipe 13 General piping instructions for Air Blaster System air control components 14 Air Blaster control components installation 15 IV 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 Assemb...

Page 3: ... 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 firing 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 tempera...

Page 4: ...ir 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 sufficiently rigid to support the Air Blaster obtain special mount hardware from your distributor Attach the ring on the end of the Air Blaster tank...

Page 5: ...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 fill the Air Blaster for each pressure level A standard air compressor can be used however nitrogen carbon dioxide or another inert gas can b...

Page 6: ... switch de energizes the solenoid the valve re opens and the Air Blaster is re filled 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 m...

Page 7: ...s 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 fired 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 fill the Air Blaster pressure vessel beyond 60 psi 4 1 bar for testing purposes Minimum pressu...

Page 8: ...ss 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 eas...

Page 9: ...he 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 influence around the circumference o...

Page 10: ...l 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 muc...

Page 11: ...acturing 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 fitted 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 di...

Page 12: ...ngential 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 flange 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 patt...

Page 13: ...ipped with a mount flange 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...

Page 14: ...r 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 specifically for use with Global Air Blasters It evacuates air from the Air Blaster valve guaranteeing a full powerful blast even when the control val...

Page 15: ...e 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 2 F i l t e r R e g u l a t o r 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 d...

Page 16: ...enoid 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 l...

Page 17: ...x 2 Solenoid Valve Size Exhaust Port Label Street Elbow Size Nipple Size 3 pn 293412 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 siz...

Page 18: ...nique to Global GWE Air Blasters Other manufacturers use a spring which can break causing downtime The 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 fitted 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...

Page 19: ... 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 configure the timer for Air Blaster firing sequence time between blasts and time between cycles Test the timer configuration and adjust as necessary to obtain the desired results 10 After satisfactory completion of the above Steps your Global Manufactur...

Page 20: ...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 fired by a sudden pressure drop in the air inlet line therefore all pressure within the tank must be relieved before t...

Page 21: ...e piston must be in good condition with smooth sealing and wear surfaces Minor pitting in the nose of the piston is acceptable if the pits are less than 1 16 2 mm deep and the sealing bevel is not pitted Any distortion of the piston which hampers smooth sliding or exhibits excessive clearance in the valve body is unacceptable 14 It is recommended that once removed all o rings on the piston valve s...

Page 22: ...hly into the bore While using only hand pressure on the piston use a thin piece of metal or screw driver to work the o ring into the piston groove allowing the piston to slide completely into the bore 6 Press the valve cap into the valve body until it reaches the valve cap seat The retaining ring groove will be visible above the cap 7 Install the retaining ring using the retaining ring pliers The ...

Page 23: ... of the air blast 1 Clamp or wedge the Air Blaster in place on the floor so that it cannot move from the recoil when fired 2 Install the pressure relief valve in the Air Blaster tank Be sure to use pipe thread sealant 3 Attach a quick disconnect on the Air Blaster inlet port 4 Attach an air hose to the quick disconnect and fill the tank to about 40 psi 2 8 bar 5 Remove the air hose to discharge th...

Page 24: ...or sharp edges that could cut or tear the o ring If any are found remove with a file Be sure to apply Teflon tape or equivalent such as Loctite 545 to the QEV threads before inserting the assembly fill line first through the tank opening Screw the QEV into the tank fitting Tighten QEV securely using a wrench on the flats Center the fill line in the valve flange opening See next page 25 letter e Th...

Page 25: ...one grease to the end of the fill line e Install the valve assembly which has the piston removed in the tank opening taking care to slide the inlet port on the valve cap over the end of the fill line When contact is made between the fill line and the o ring seal in the cap twist and slightly rock the valve until the valve slips fully into the recess in the tank flange Copper Fill Line Copper Fill ...

Page 26: ...l valve is too far from the Air Blaster or the size of the valve is too small Control valve must be within 100 feet of the Air Blaster If distance is greater than 100 feet move it closer to the Blaster Be sure valves are the recommended size A control valve must be used and connected by a airline to the Air Blaster Piston lodged in operating valve due to contamination Disassemble and clean operati...

Page 27: ... Cable Kit PN 169014 169014 169014 169014 169014 Master Blaster Timer PN Requires 3 Way N O 24V Solenoids pn 458214 892006 892006 892006 892006 892006 Number of Blaster Circuits 6 6 6 6 6 Maximum Number of Blasters per Timer 18 18 18 18 18 Quick Exhaust Valve PN 308011 308011 308011 308011 308011 In Out Port Size in NPT 3 Way Normally Open Solenoid Valve PN 456112 456112 456112 456112 456112 Port ...

Page 28: ...8 385212 Cap Main Buna 1 385343 385436 Cap Exhaust Buna 1 385331 385343 Cap Fill Line Buna 1 385118 385122 Retaining Ring 10 347400 347625 Gaskets 10 296140 296160 Quick Exhaust Valve 5 308011 308011 3 Way N O Solenoid 110V 5 456112 456112 3 Way N O Solenoid 24V required if using Global s TMB II 06 Timer 5 458214 458214 The life expectancy of Global GW Series Air Blasters is indefinite when operat...

Page 29: ...g Length Flange Diameter Total Length Total Width Inlet Port lb in in in in in in in in kg mm mm mm mm mm mm mm NPT 4 Discharge GWE4 12 28 97 4 0 12 28 4 6 9 37 6 13 5 44 102 305 711 117 229 955 343 NPT GWE4 16 34 118 4 0 16 34 4 6 9 44 3 19 1 53 102 406 864 117 229 1125 485 NPT GWE4 20 30 128 4 0 20 30 4 6 9 39 6 21 5 58 102 508 762 117 229 1006 546 NPT 6 Discharge GWE6 24 48 282 6 0 24 48 6 0 11...

Page 30: ...ulator for every 4 AB s This configuration provides optimum Blaster performance and allows the control valve to be located up to 100 feet from the Air Blaster Appendix E Air Blaster Plumbing Diagrams Using a Quick Exhaust Valve 1 Shut Off Ball Valve 2 Filter Regulator Gauge 3 Check Valve 4 3 Way Normally Open Control Valve 5 1 Global s QEV attached to AB AB Air Blaster Can use but fills faster 4 4...

Page 31: ... 42 42 6 Discharge GWE6 24 48 Tank Volume is 10 6 ft 299 l Free Air Volume ft 61 0 68 3 75 5 82 7 liters 1727 1934 2138 2342 Fill Time sec 90 90 90 105 Shot Time sec 20 21 22 23 Force lbf 2681 2812 3230 3333 kN 12 02 12 60 14 48 14 94 Efficiency lb ft 44 41 43 40 6 Discharge GWE6 30 60 Tank Volume is 22 8 ft 645 l Free Air Volume ft 131 3 147 0 162 4 178 0 liters 3718 4162 4599 5040 Fill Time sec ...

Page 32: ...g c o m 20 30 Discharge Pipe Elliptical Opening Hopper Wall 0 0 D C B A w h Coordinates and Dimensions of Elliptical Openings for Tangential Mount Dimensions in Inches 4 Pipe 6 Pipe X Y X Y A 2 35 86 3 25 1 22 B 1 77 4 87 2 50 6 87 C 2 35 85 3 35 1 22 D 1 77 4 87 2 50 6 87 Width 5 00 7 12 Height 10 37 14 62 Appendix G Coordinates Dimensions of Elliptical Openings for Tangential Mounts ...

Page 33: ...0140 1 5 9 O Ring Buna 568 331 385331 1 4 Gasket 296140 1 5 10 O Ring Buna 568 118 385118 1 5 Valve Assembly 305740 1 5 11 Retaining Ring 5000 400 347400 1 5 1 Valve Body 302540 1 6 Plug 295108 2 5 2 O Ring Buna 568 240 385240 1 7 Tank 4 0 12 28 306428 1 5 3 Seat 304640 1 8 Pressure Relief Valve 125 290408 1 5 4 O Ring Viton 568 237 386237 1 9 Fill Line AB 260073 1 5 5 Piston 275740 1 10 Quick Exh...

Page 34: ...10 8 5 8 Valve Cap 304240 1 3 Coupling 300140 1 5 9 O Ring Buna 568 331 385331 1 4 Gasket 296140 1 5 10 O Ring Buna 568 118 385118 1 5 Valve Assembly 305740 1 5 11 Retaining Ring 5000 400 347400 1 5 1 Valve Body 302540 1 6 Plug 295108 2 5 2 O Ring Buna 568 240 385240 1 7 Tank 4 0 16 34 306434 1 5 3 Seat 304640 1 8 Pressure Relief Valve 125 290408 1 5 4 O Ring Viton 568 237 386237 1 9 Fill Line AB ...

Page 35: ... 5 8 Valve Cap 304240 1 3 Coupling 300140 1 5 9 O Ring Buna 568 331 385331 1 4 Gasket 296140 1 5 10 O Ring Buna 568 118 385118 1 5 Valve Assembly 305740 1 5 11 Retaining Ring 5000 400 347400 1 5 1 Valve Body 302540 1 6 Plug 295108 2 5 2 O Ring Buna 568 240 385240 1 7 Tank 4 0 20 30 307430 1 5 3 Seat 304640 1 8 Pressure Relief Valve 125 290408 1 5 4 O Ring Viton 568 237 386237 1 9 Fill Line AB 2600...

Page 36: ...0 O Ring Buna 568 122 385122 1 4 Gasket 296160 1 5 11 O Ring Buna 586 343 385343 1 5 Valve Assembly 305760 1 5 12 Retaining Ring 5000 625 347625 1 5 1 Valve Body 302560 1 6 Plug 295108 2 5 2 O Ring Buna 568 431 385431 1 7 Tank 307648 1 5 3 Seat 304660 1 8 Pressure Relief Valve 125 290408 1 5 4 O Ring Viton 568 254 386254 1 9 Plug 2 295232 1 5 5 Piston 275760 1 10 Fill Line 260076 1 5 6 O Ring Buna...

Page 37: ...0 O Ring Buna 568 122 385122 1 4 Gasket 296160 1 5 11 O Ring Buna 586 343 385343 1 5 Valve Assembly 305760 1 5 12 Retaining Ring 5000 625 347625 1 5 1 Valve Body 302560 1 6 Plug 295108 2 5 2 O Ring Buna 568 431 385431 1 7 Tank 307660 1 5 3 Seat 304660 1 8 Pressure Relief Valve 125 290408 1 5 4 O Ring Viton 568 254 386254 1 9 Plug 2 295232 1 5 5 Piston 275760 1 10 Fill Line 260077 1 5 6 O Ring Buna...

Page 38: ...e Cap 308003 1 3 O ring Buna 568 039 385039 1 4 O ring Buna 568 331 385331 1 5 Ball1 490308 1 6 Piston With Ball 308005 1 7 O ring Buna 568 219 385219 1 8 Exaust Shield2 270375 1 9 Exaust Shield2 270375 1 10 Valve Body 308002 1 1 Included in the Piston pn 308005 2 There must always be two 2 Exhaust Shields on the QEV for it to properly function If the internal band which has REPLACE BAND NOW stamp...

Page 39: ...r to relieve all the pressure within the tank If it is not possible to fire 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 Remove old bands one at a time Stretc...

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