Ingersoll-Rand ARO BD20-A Series Operator'S Manual Download Page 3

BD20X-XXX-XXX-AXX (en) 

Page 3 of 20

OPERATING AND SAFETY PRECAUTIONS

READ, UNDERSTAND AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE.

EXCESSIVE AIR PRESSURE

STATIC SPARK

HAZARDOUS MATERIALS

HAZARDOUS PRESSURE

WARNING

 EXCESSIVE AIR PRESSURE. Can cause per-

sonal injury, pump damage or property damage.

 

y

Do not exceed the maximum inlet air pressure as stat-

ed on the pump model plate.

 

y

Be sure material hoses and other components are 

able to withstand fluid pressures developed by this 

pump. Check all hoses for damage or wear. Be certain 

dispensing device is clean and in proper working con-

dition.

WARNING

 STATIC SPARK. Can cause explosion re-

sulting in severe injury or death. Ground pump and 

pumping system.

 

y

Use the pump grounding screw terminal provided. Use 

ARO® part no. 66885-1 ground kit or connect a suitable 

ground wire (12 ga. min.) to a good earth ground source.

 

y

Secure pump, connections and all contact points to 

avoid vibration and generation of contact or static 

spark.

 

y

Consult local building codes and electrical codes for 

specific grounding requirements.

 

y

After grounding, periodically verify continuity of 

electrical path to ground. Test with an ohmmeter from 

each component (e.g., hoses, pump, clamps, contain-

er, spray gun, etc.) to ground to insure continuity. 

Ohmmeter should show 0.1 ohms or less.

 

y

Submerse the outlet hose end, dispensing valve or de-

vice in the material being dispensed if possible. (Avoid 

free streaming of material being dispensed.)

 

y

Use hoses incorporating a static wire.

 

y

Use proper ventilation.

 

y

Keep inflammables away from heat, open flames and 

sparks.

 

y

Keep containers closed when not in use.

WARNING

 Pump exhaust may contain contaminants. 

Can cause severe injury. Pipe exhaust away from work 

area and personnel.

 

y

In the event of a diaphragm rupture, material can be 

forced out of the air exhaust muffler.

 

y

Pipe the exhaust to a safe remote location when 

pumping hazardous or inflammable materials.

 

y

Use a grounded 1” minimum ID hose between the 

pump and the muffler.

WARNING

 HAZARDOUS PRESSURE. Can result in seri-

ous injury or property damage. Do not service or clean 

pump, hoses or dispensing valve while the system is 

pressurized.

 

y

Disconnect air supply line and relieve pressure from 

the system by opening dispensing valve or device and 

/ or carefully and slowly loosening and removing out-

let hose or piping from pump.

WARNING

 HAZARDOUS MATERIALS. Can cause serious 

injury or property damage. Do not attempt to return 

a pump to the factory or service center that contains 

hazardous material. Safe handling practices must 

comply with local and national laws and safety code 

requirements.

 

y

Obtain Material Safety Data Sheets on all materials 

from the supplier for proper handling instructions.

WARNING

 EXPLOSION HAZARD. Models containing 

aluminum parts cannot be used with 1,1,1-trichlo-

roethane, methylene chloride or other halogenated 

hydrocarbon solvents which may react and explode.

 

y

Check pump motor section, fluid caps, manifolds and 

all wetted parts to assure compatibility before using 

with solvents of this type.

WARNING

 MISAPPLICATION HAZARD. Do not use mod-

els containing aluminum wetted parts with food prod-

ucts for human consumption. Plated parts can contain 

trace amounts of lead.

CAUTION

 Verify the chemical compatibility of the 

pump wetted parts and the substance being pumped, 

flushed or recirculated. Chemical compatibility may 

change with temperature and concentration of the 

chemical(s) within the substances being pumped, 

flushed or circulated. For specific fluid compatibility, 

consult the chemical manufacturer.

CAUTION

 Maximum temperatures are based on me-

chanical stress only. Certain chemicals will signifi-

cantly reduce maximum safe operating temperature. 

Consult the chemical manufacturer for chemical com-

patibility and temperature limits. Refer to PUMP DATA 

on page 1 of this manual.

CAUTION

 Be certain all operators of this equipment 

have been trained for safe working practices, under-

stand it’s limitations, and wear safety goggles / equip-

ment when required.

CAUTION

 Do not use the pump for the structural sup-

port of the piping system. Be certain the system com-

ponents are properly supported to prevent stress on 

the pump parts.

 

y

Suction and discharge connections should be flexi-

ble connections (such as hose), not rigid piped, and 

should be compatible with the substance being 

pumped.

CAUTION

 Prevent unnecessary damage to the pump. 

Do not allow pump to operate when out of material 

for long periods of time.

 

y

Disconnect air line from pump when system sits idle 

for long periods of time.

CAUTION

 Use only genuine ARO replacement parts to 

assure compatible pressure rating and longest service 

life.

NOTICE

 Replacement warning labels are available 

upon request: “Static Spark & Diaphragm Rupture”  

pn \ 94080.

WARNING

= Hazards or unsafe practices which 

could result in severe personal in-

jury, death or substantial property 

damage.

CAUTION

= Hazards or unsafe practices which 

could result in minor personal inju-

ry, product or property damage.

NOTICE

= Important installation, operation or 

maintenance information.

Summary of Contents for ARO BD20-A Series

Page 1: ...r XXX PumpType Metallic Air Operated Double Diaphragm Material see Model Description Chart Weight BD20A XAX XXX AXX 75 lbs 34 kgs Maximum Air Inlet Pressure 120 psig 8 3 bar Maximum Material Inlet Pressure 10 psig 0 69 bar Maximum Outlet Pressure 120 psig 8 3 bar Maximum Flow Rate 185 gpm 700 lpm Displacement Cycle 100 psig 1 4 gal 5 3 lit Maximum Suction Lift Dry Inlet 18 ft 5 4 m water Tested us...

Page 2: ...IECEx K Solenoid 220 VAC ATEX IECEx N Solenoid with no Coil P Ported Motor No Major Valve NOTICE All possible options are shown in the chart however certain combinations may not be recommended Consult a representative or the factory if you have questions concerning availability G End of Stroke ATEX IECEx NEC CEC F End of Stroke feedback E Solenoid 12 VDC NEC CEC F Solenoid 24 VDC NEC CEC J Solenoi...

Page 3: ...mage Do not attempt to return a pump to the factory or service center that contains hazardous material Safe handling practices must comply with local and national laws and safety code requirements y Obtain Material Safety Data Sheets on all materials from the supplier for proper handling instructions WARNING EXPLOSION HAZARD Models containing aluminum parts cannot be used with 1 1 1 trichlo roetha...

Page 4: ...rovided on pages 5 through 8 for parts identification and service kit informa tion y Certain ARO Smart Parts are indicated which should be available for fast repair and reduction of down time y Service kits are divided to service two separate diaphragm pump functions 1 AIR SECTION 2 FLUID SECTION The Fluid Section is divided further to match typical part Ma terial Options MAINTENANCE y Provide a c...

Page 5: ...7494 XA 97326 M 2 Sp 94356 4 E XXC 637494 XC 97326 C 2 H Y327 237 4 V XXK 637494 XK 97436 2 TC Y328 237 4 T XXM 637494 XM 97326 M 2 MSP Y328 237 4 T XXT 637494 XT 97327 T 2 T 97328 A 2 SP Y328 237 4 T CENTER SECTION OPTIONS BD20X XXX XXX AXX Item Description size Qty Aluminum BD20A XXX XXX AXX Part No Mtl 5 BackupWasher 2 96503 A BD20X XXX XXK AXX only 2 97449 SS 68 Air Cap 1 98237 1 A 69 Air Cap ...

Page 6: ...m Color Ball Color Hytrel Cream Cream Nitrile Black Red Santoprene Tan Tan Santoprene Backup Green N A PTFE White White Viton Yellow Yellow Dot Apply anti seize compound to threads and bolt and nut flange heads which contact pump case when using stainless steel fasteners Apply Loctite 262 to threads at assembly Apply Loctite 572 to threads Note Lubriplate FML 2 is a white food grade petroleum grea...

Page 7: ... x 16 mm 2 95991 SS 241 Track Gasket 1 96344 B 242 O Ring 1 16 x 7 32 OD 1 Y325 5 B 243 O Ring 1 8 x 5 8 OD 1 Y325 204 B 244 O Ring 1 8 x 7 8 OD 1 Y325 208 B Item Description size Qty Part No Mtl 403 Valve All BD20X with solenoid 1 114102 407 Carrot Plug All BD20X with Solenoid 1 96317 410 Sensor for Cycle Sensing BD20X XXX XXX ASX 1 95276 410 ASM Adapter Sensor BD20X XXX XXX AXF 1 97121 BD20X XXX...

Page 8: ...rings Replace 170 sleeve 3 Install new 168 O rings and 169 U cup Note the lip direction Lubricate and replace 167 pilot piston 4 Reassemble remaining parts Replace 173 and 174 O rings MAJOR VALVE DISASSEMBLY 1 Remove 135 valve block and 233 adapter plate expos ing 132 and 166 gaskets and 176 checks 2 Remove 233 adapter plate releasing 140 valve insert 141 valve plate 199 200 and 241 gaskets and 24...

Page 9: ...28 2 132 133 3 134 4 135 136 137 138 139 140 141 166 176 2 199 200 233 240 2 241 242 243 and 244 105 Screw 40 50 in Lbs 4 5 5 6 Nm 134 Screw 40 50 in Lbs 4 5 5 6 Nm 240 Screw 40 50 in Lbs 4 5 5 6 Nm Apply anti seize compound to threads and bolt and nut flange heads which contact pump case when using stainless steel fasteners Apply PTFE tape to threads PILOT VALVE PILOT VALVE MAJOR VALVE 174 121 11...

Page 10: ...ck for pump cavitation suction pipe should be sized at least as large as the inlet thread diameter of the pump for proper flow if high viscosity fluids are being pumped Suction hose must be a non collapsing type capable of pulling a high volume y Check all joints on the inlet manifolds and suction con nections These must be air tight y Inspect the pump for solid objects lodged in the dia phragm ch...

Page 11: ...ctly to the two diaphragm air chambers Solenoid control allows the cycle rate of the pump to be con trolled electronically With Solenoid control when the solenoid is energized the pump strokes and dispenses the fluid in one chamber When the solenoid is de energized the pump strokes in the oppo site direction dispensing the fluid in the other chamber By providing continuous ON OFF signals to the so...

Page 12: ...Page 12 of 20 BD20X XXX XXX AXX en 407 101 For BD20X XXX XXX AXX models 429 413 414 417 403 415 418 416 411 428 421 420 419 Figure 6 ELECTRONIC INTERFACE PART LIST ...

Page 13: ...or 1 2 4 3 CABLE ASSEMBLY WIRING COLORS PIN 1 BROWN POSITIVE VOLTAGE 10 TO 30 VDC PIN 2 WHITE NOT USED PIN 3 BLUE ZERO VOLTS PIN 4 BLACK SIGNAL NOTE WIRING COLORS ARE BASED ON AUTOMATION DIRECT CD12L AND CD12M 4 POLE CABLE ASSEMBLIES PIN 2 PIN 3 PIN 4 PIN 1 With End of Stroke feedback the End of stroke sensor detects when the diaphragm rod has reached the end of each stroke This allows closed loop...

Page 14: ...Page 14 of 20 BD20X XXX XXX AXX en INSTALLATION SEQUENCE FOR PTFE COMPOSITE DIAPHRAGMS ONLY FM L 2 ...

Page 15: ...BD20X XXX XXX AXX en Page 15 of 20 0 24 5 15 20 25 3 0 3 5 1 0 6 8 Mpa psi 0 6 0 1 0 13 0 1 7 0 2 6 8 psig PN 97452 1 x 0 5 25 4 mm x 12 7 mm ...

Page 16: ...Page 16 of 20 BD20X XXX XXX AXX en A B A B ...

Page 17: ...BD20X XXX XXX AXX en Page 17 of 20 ...

Page 18: ...Page 18 of 20 BD20X XXX XXX AXX en A B A B 0 24 5 15 20 25 3 0 3 5 1 0 6 8 Mpa psi 0 6 0 1 0 13 0 1 7 0 2 6 8 psig ...

Page 19: ...BD20X XXX XXX AXX en Page 19 of 20 PN 97452 1 x 0 5 25 4 mm x 12 7 mm ...

Page 20: ...Page 20 of 20 BD20X XXX XXX AXX en PN 97999 1920 ...

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