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