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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

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 flow 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 flow 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 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 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 flow 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, difficult materials. For instance, large concrete bunkers and storage

piles on the ground are impossible to vibrate, but are common locations of flow problems. Wood chips

are very difficult 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

Содержание GWE Series

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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