1. Pro-Series Diaphragm Pumps Overview Program

2. Insert Footer 2 Pro-Series Diaphragm Pumps Overview Pro-Series Pumps –Complete Pump Line  Metallic / Non-Metallic Models –Feature Benefits  Pro-Series Value Proposition

3. Insert Footer 3 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

4. Insert Footer 4 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

5. Insert Footer 5 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)

6. Insert Footer 6 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

7. Insert Footer 7 Pro-Series Valve Operation Step 1: –Valve is at rest –Air is supplied to the Right Diaphragm Chamber –Left Diaphragm Chamber exhausts to atmosphere

8. Insert Footer 8 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

9. Insert Footer 9 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

10. Insert Footer 10 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

11. Insert Footer 11 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.

12. Insert Footer 12 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

13. Insert Footer 13 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

14. Insert Footer 14 Pro-Series Diaphragm Pumps Overview