Pro-Series Diaphragm Pumps

Overview Program

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Pro-Series Diaphragm Pumps Overview

• Pro-Series Pumps– Complete Pump Line

Metallic / Non-Metallic Models

– Feature Benefits Pro-Series Value Proposition

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Pro-Series Pumps

• A complete Diaphragm Pump line– 1” through 3” Metallic Models

Aluminum, Stainless and Cast Iron

– 1” through 2” Non-Metallic Models Polypropylene and PVDF

• Capable of meeting the most demanding pump applications– When performance & reliability are critical– Features that provide excellent reliability

Non-icing motor Non-stalling air valve Bolted Construction High Flow rate

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Stainless Steel Models

• For Transfer of Aggressive Fluids– pH of 0-3 and 11-14

• 666251-X-C – 2” Ports NPT & BSP– 172-gpm (651-lpm)

• 666301-X-C– 3” Ports NPT & BSP– 237-gpm (897-lpm)

• Investment cast wet ends provide:– Smooth clean internal/external

surface finish

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Cast Iron Models

• Provides Superior Abrasion Resistance– Excellent life in wastewater, sump

and abrasive slurry applications For fluids with pH of 4-5 and 9-10

– 666252-X-C 2” Ports NPT & BSP 172-gpm (651-lpm)

– 666302-X-C 3” Ports NPT & BSP 237-gpm (897-lpm)

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Feature-Benefits: Unbalanced Air Valve

• Feature Description– Center section of valve is

constantly pressurized Automatically resets valve to

prevent stalling

• Benefit– Eliminates stalling associated with

competitive brands utilizing a balanced valve

– Ensures pump operates on demand

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Pro-Series Valve Operation

• Step 1:– Valve is at rest

– Air is supplied to the Right Diaphragm Chamber

– Left Diaphragm Chamber exhausts to atmosphere

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Pro-Series Valve Operation

• Step 2:– Pilot Rod shifts, sending

signal to large end of Major Valve Major Valve shifts

– Right Diaphragm Chamber exhausts to atmosphere

– Air supplied to Left Diaphragm Chamber

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Pro-Series Valve Operation

• Step 3:– Pilot Rod shifts, signal to

large end of Major Valve is eliminated Major Valve resets

– Air supplied to Right Diaphragm Chamber

– Left Diaphragm Chamber exhausts to atmosphere

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Feature-Benefits: O-Ring Seal

• Feature Description– Major valve rides on O-rings as it

reciprocates in air motor

• Benefit– Eliminates blow-by of compressed

air at Air Valve When fluid flow stops, the flow of

compressed air also stops

– O-Rings wipe away contaminants from air supply

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Feature-Benefits: No-Lube Operation

• Feature Description– ARO Diaphragm Pumps DO NOT

require air line lubricant

– Use a Filter/Regulator on air inlet Recommended F-R in each

catalog

• Benefit– One less maintenance step

Instruct customer not to use oils that harm the pump: ATF, Vaseline, Tool Oil, Valve Oil, Ethylene-Glycol, WD-40, etc.

Note: “No-Lube Operation” means no air-line lubricant is required.

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Feature-Benefits: Bolted Construction

• Feature Description– IR/ARO diaphragm pumps use

eight bolts to secure fluid caps to the pump center body

• Benefit– Avoids leakage associated with

band-clamp fasteners Band clamps stretch and fatigue

– Provides uniform torque across seal point Avoids leaks

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Feature-Benefits: Ease of Maintenance

• Bolted Construction– Speeds repair process

Easier to re-assemble Provides better alignment/ seal

between components parts

– Pre-assembled Service Kits Include items to conduct normal

repair Simplify ordering process

– O-Ring Seal Air motor elastomers are wear items Does not require replacement of full

spool/valve-body assemblies

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Pro-Series Diaphragm Pumps Overview