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PW10A-XXX-XXX-A (en)

WARNING

 EXCESSIVE AIR PRESSURE. Can cause per-

sonal injury, pump damage or property damage.

 

y

Do not exceed the maximum inlet air pressure as 

stated 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 dispens-

ing device is clean and in proper working condition.

WARNING

 STATIC SPARK. Can cause explosion re-

sulting in severe injury or death. Ground pump and 

pumping system.

 

y

Sparks can ignite flammable material and vapors.

 

y

The pumping system and object being sprayed must 

be grounded when it is pumping, flushing, recirculat-

ing or spraying flammable materials such as paints, 

solvents, lacquers, etc. or used in a location where 

surrounding atmosphere is conducive to spontaneous 

combustion. Ground the dispensing valve or device, 

containers, hoses and any object to which material is 

being pumped.

 

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 ensure continuity. 

Ohmmeter should show 0.1 ohms or less.

 

y

Submerse the outlet hose end, dispensing valve or 

device 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 3/8” minimum ID hose between the 

pump and the muffler.

WARNING

 HAZARDOUS PRESSURE. Can result in se-

rious injury or property damage. Do not service or 

clean pump, hoses or dispensing valve while the sys-

tem 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

OPERATING AND SAFETY PRECAUTIONS

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

  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 alu-

minum wetted 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 flex-

ible 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

 RE-TORQUE ALL FASTENERS BEFOREOPER-

ATION. Creep of housing and gasket materials may 

cause fasteners to loosen.Re-torque all fasteners to 

ensure against fluid or air leakage

WARNING

  = Hazards or unsafe practices which 

could result in severe personal injury, 

death or substantial property damage.

CAUTION

  = Hazards or unsafe practices which 

could result in minor personal injury, 

product or property damage.

NOTICE

  = Important installation, operation or 

maintenance information.

EXCESSIVE AIR PRESSURE

STATIC SPARK

HAZARDOUS MATERIALS

HAZARDOUS PRESSURE

Summary of Contents for ARO PW10A A Series

Page 1: ... Cycle 100 psig 0 234 gal 0 89 lit Maximum Particle Size 1 8 dia 3 3 mm MaximumTemperature Limits Diaphragm Ball Seat materials E P R EPDM 60 to 280 F 51 to 138 C Hytrel 20 to 180 F 29 to 82 C Nitrile 10 to 180 F 12 to 82 C Santoprene 40 to 225 F 40 to 107 C PTFE 40 to 225 F 4 to 107 C Viton 40 to 350 F 40 to 177 C Dimensional Data see page 8 Mounting Dimension 5 9375 x8 75 150 8mmx222 3mm Noise L...

Page 2: ...OPERATING AND SAFETY PRECAUTIONS READ UNDERSTAND AND FOLLOWTHIS INFORMATIONTO AVOID INJURY AND PROPERTY DAMAGE hazardous material Safe handling practices must comply with local and national laws and safety code requirements y y Obtain Material Safety Data Sheets on all materials from the supplier for proper handling instructions WARNING EXPLOSION HAZARD Models containing alu minum wetted parts can...

Page 3: ...model and option chart ARO pumps feature stall resistant design modular air motor fluid sections Air operated double diaphragm pumps utilize a pressure differential in the air chambers to alternately create suction and positive fluid pressure in the fluid chambers ball checks ensure a positive flow of fluid Pump cycling will begin as air pressure is applied and it will continue to pump and keep up...

Page 4: ...96328 2 2 B Y325 225 4 B Y325 220 4 B XXL 637401 XXL 637401 XL 96146 L 2 L 96145 A 2 Sp 93282 4 T 93281 4 T XXT 637401 XXT 637401 XT 96146 T 2 T 96145 A 2 Sp 93282 4 T 93281 4 T XXV 637401 XXV 637401 XV 95989 3 2 V Y327 255 4 V Y327 220 4 V EXTERNAL HARDWARE OPTIONS PW10A AAX XXX AXX PW10A XXP XXX PW10A XXS XXX Item Description size Qty Part No Mtl Part No Mtl 26 Screw M8 x 1 25 6g x 30 mm 8 95880...

Page 5: ...ase to all O rings U Cups mating parts x Apply Loctite 242 to threads at assembly Apply PTFE tape to threads at assembly Apply Loctite 271 to threads at assembly U Apply anti seize compound to thread at assembly Y Not used with PW10A AAX AXX CXX and GXX Z Lubriplate FML 2 is a white food grade petroleum grease 15 131 x 175 43 k 29 144k 70k 22 21 19Y 26 U 61 22 19Y 21 144k 70k 69 1k 5 7 6 9 195 14 ...

Page 6: ... on 111 spool LIPS MUST FACE EACH OTHER 2 Insert 111 spool into 135 valve block 3 Install 137 gasket on 136 end cap and assemble end cap to 135 valve block securing with 105 screws NOTE Tighten 105 screws to 35 40 in lbs 4 0 4 5 Nm 4 Install 140 valve insert and 141 valve plate into 135 valve block NOTE Assemble 140 valve insert with dished side toward 141 valve plate Assemble 141 valve plate with...

Page 7: ...d to threads at assembly U 134 135 133 174 121 118 173 126 169 172 171 170 167 121 174 118 166 132 141 140 200 233 176 PILOT VALVE PART GROUP MAJOR VALVE A replacement 637390 3 Major Valve Service Assembly is available separately which includes the following 105 4 111 128 132 135 136 137 138 139 140 141 166 176 2 200 and 233 Figure 3 101 181 103 201 173 136 128 U 105 MATERIAL CODE A Aluminum AO Al...

Page 8: ...ed restrictive or collapsed inlet material hose y y Check 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 vacuum y y Check all joints on the inlet manifolds and suction con nections These must be air tight y y Ins...

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