ARO Air Operated Diaphragm Pumps

Features & Benefits

  • “Unstallable” Air Valve
  • Quick Dumps Prevent Freezing
  • Forgiving Air Valve Seals
  • Bolted Construction
  • 5 Years between failure
  • Pumping 1.6 million gallons without fail
ARO Diaphragm Pump Models Maximum Flow
GPM (LPM)
Maximum Discharge Pressure PSI (BAR) Fluid Ports Inlet/outlet
(BSP Available)
Materials of Construction
1/4″ Ports Non-Metallic 4.5 (17.4) 100 (6.8) 3/8″ (F) -In
1/4″ -Out
(no BSP)
Polypropylene Groundable Acetal
Kynar®
1/2″ PortsNon Metalic 13(49) 100 (6.8) 1/2″ (F) In/Out
(no BSP)
Polypropylene Groundable Acetal
Kynar®
1/2″ Ports
Metallic
13(49) 100 (6.8) 1/2″ (F) In/Out
(no BSP)
Stainless Steel Aluminum
1″ Ports Non-Metallic 47(178) 120 (8.3) 1″ ANSI Flange Polypropylene
Kynar (PVDF)
1″ Ports
Metallic
35 (133) 120 (8.3) 1″ (F) – In/Out
(BSP Available)
Aluminum
Stainless Steel
Cast Iron
1″ Ports Metallic
3:1 Ratio
24 (90.7) 300 (20.7) 1″ (F) – In/Out
(BSP Available)
Stainless Steel
1 1/2″ Ports
Non-Metallic
100 (379) 120 (8.3) 1 1/2″ Flange
ANSI
(BSP Available)
Polypropylene
Kynar®
1 1/2″ Ports Metallic 100 (379) 120 (8.3) 1 1/2″ (F)
(BSP Available)
Aluminum
Stainless Steel
Cast Iron
2″ Ports Non-Metallic 145 (548) 120 (8.3) 2″ ANSI Flange
(BSP Available)
Polypropylene
Kynar
2″ Ports Ball Valve 170 (644) 120 (8.3) 2″ (F)
(BSP Available)
Aluminum
Stainless Steel
Cast Iron
2″ Ports “Flap” Valve 170 (644) 120 (8.3) 2″ (F)
(BSP Available)
Aluminum
Stainless Steel
Cast Iron
3″ Ports Metallic 275 (1041) 120 (8.3) 3″ (F)
(BSP Available)
Aluminum
Stainless Steel
Cast Iron
Hastelloy
Sanitary Transfer Tri-Clamp (S-Tran) 1/2″ = 13 (49.2) 120 (8.3) Tri-Clamp Stainless Steel
2 1/2″ = 170 (644)
3″= 275 (1041)
Specialty Pumps Accessories
  • Drum Pumps
  • Powder Transfer System
  • Air System Components
  • Shock Blocker Pulsation Dampeners
  • Drum Pump Conversion Kit
  • Accessories for Diaphragm Pumps
  • Accessories for Piston Pumps
  • Pump Actuation / Air Controls
  • Pump Cycle Sensor / Pneumatic Batch Counter
  • Cycle Actuation Kits
  • Diaphragm Failure Detection Kit