Air-Operated Pumps

Air Operated Diaphragm Pump DiagramAir operated diaphragm pumps (AOD) or Air-Driven Pumps are ideal for moving sludge and slurries.  Solids-laden fluids like sludge and slurry are hard to move -- unless you're using an air operated diaphragm pump.

Air is driven into the bottom of the air cylinder, raising the piston inside and lifting the diaphragm. As the diaphragm is raised, the check valve ball on the intake side is lifted and liquid flows into the pump. When the piston has risen to the top, the pump cavity is filled and the pump is ready for discharge.

Compressed air is then forced into the top of the diaphragm chamber, pushing the diaphragm down and evacuating the pump cavity. The check-valve ball on the discharge side is lifted and the pump is ready for the next cycle.

Because an air operated diaphragm has limited moving parts, there's almost nothing to maintain orwear out. Rebuild costs are reduced and are built for years of trouble-free operation.

GPM

Head

Make and Model Number

Type

Material

 

Type

Condition

120

50TDH

ARO PD20A-AAP-AAA

AOD

AL

 

AOD

Used

120

50TDH

ARO PD20A-AAP-GGG

AOD

AL

Nitrile

AOD

New Surplus

120

50TDH

ARO PD20A-AAP-GGG

AOD

AL

Nitrile

AOD

Used

120

50TDH

ARO PD20A-ACP-GGG

AOD

CI

Nitrile

AOD

New Surplus

120

50TDH

ARO AOD PD20A-AAS-HAA

 

Alum

Santoprene

AOD

Used

120

50TDH

ARO AOD PD20A-AAS-HAA

 

Alum

Santoprene

AOD

Used

120

50TDH

ARO AOD PD20A-AAS-HAA

 

Alum

Santoprene

AOD

Used

120

50TDH

ARO AOD PD20A-AAS-OKA

 

Alum

Santoprene

AOD

Used

125

50TDH

Gorman Rupp Ramparts 30P 3x3

 

CI

 

AOD

Unused

30

50 PSI

ITT - AC 1AODSNNN

 

316 SS

 

AOD

 

150

50 PSI

ITT - Marlow 3AOO-CBBB

 

CI

 

AOD

Used

28

50

Sandpiper SB1A

AOD

CI

Buna

AOD

 

70

30PSI

Sandpiper S15B2P2PQAS000

AOD

PolyPro

PTFE Sanop

AOD

Used

80

50 PSI

Sandpiper S15B1A1SANS100

 

Alum

Santoprene

AOD

New Surplus

100

50 PSI

Sandpiper S20B2P2PQAS100

 

PolyPro

PTFE/San

AOD

Used

100

50

Sandpiper SA2 DB5A

AOD

CI

Buna

AOD

Used Rebuilt

100

50

Sandpiper SA2 DB5A

AOD

CI

Buna

AOD

Used Rebuilt

100

50

Sandpiper SA2 DB5A

AOD

CI

Buna

AOD

Used Rebuilt

100

50

Sandpiper SA2 DB5A

AOD

CI

Buna

AOD

Used Rebuilt

180

50

Sandpiper SA3 DB7A

AOD

CI

Buna

AOD

Used

180

50

Sandpiper SA3 DB7A

AOD

CI

Buna

AOD

Used

10

60 TDH

US Pump L201EDC8C

 

 

 

AO

Unused

40

50PSI

Versamatic E4 1-1/4"

AOD

Alum

 

AOD

Used

100

50 PSI

Versamatic

AOD

316SS

 

AOD

Used

100

50 PSI

Versamatic 2"

 

316SS

316SS

AOD

Used

120

50PSI

Versamatic E2AA2D220

AOD

Alum

 

AOD

Used

10

50 PSI

Wilden M1-KPPP/TF/TF/KTV

AOD

Kynar

Teflon

AOD

Unused

10

50 PSI

Wilden P1-KPPP/TF/TF/KTV

AOD

Kynar

Teflon

AOD

Unused

100

50 PSI

Wilden 2"

AOD

CI

XI

AOD

Used

100

50 PSI

Wilden 2"

AOD

CI

XI

AOD

Used

100

50 PSI

Wilden 2"

AOD

Alum

 

AOD

Rebuilt

100

50 PSI

Wilden M8 2"

 

Alum

 

AOD

Used

100

50 PSI

Wilden M8 2"

 

316SS

316SS

AOD

Used

100

50 PSI

Wilden M8 2"

AOD

316SS

 

AOD

Used

100

50 PSI

Wilden M8 2"

AOD

316SS

 

AOD

Used

100

50 PSI

Wilden M8 2"

AOD

316SS

 

AOD

Used

100

50 PSI

Wilden M8 2"

AOD

316SS

 

AOD

Used

100

50 PSI

Wilden M8 2"

AOD

316SS

 

AOD

Used

100

50 PSI

Wilden M8 2"

AOD

316SS

 

AOD

Used

100

50 PSI

Wilden M8 2"

AOD

316SS

 

AOD

Used

100

50 PSI

Wilden M8 2"

AOD

316SS

 

AOD

Used

100

50 PSI

Wilden M8 2"

AOD

316SS

 

AOD

Used

100

50 PSI

Wilden P1500/SAAP/TS/TF/STF

AOD

316SS

Teflon

AOD

New Surplus

100

50PSI

Wilden P8 2"

 

316SS

316SS

AOD

Used Rebuilt

100

50PSI

Wilden W8/PAAB/TF/TF/PTV

 

Non-Metalic

 

AOD

Used

200

50 PSI

Wilden

AOD

Alum

Teflon

AOD

Used

200

50 PSI

Wilden 15-5000-03

AOD

316SS

 

AOD

Used

200

50 PSI

Wilden 15-5000-03

AOD

316SS

 

AOD

Used

200

50 PSI

Wilden 15-5020-03

AOD

316SS

 

AOD

Used

200

50 PSI

Wilden 15-5020-03

AOD

316SS

 

AOD

Used

200

50 PSI

Wilden 15-5020-03

AOD

316SS

 

AOD

Used

200

50 PSI

Wilden 15-5080-03

AOD

316SS

 

AOD

Used

200

50 PSI

Wilden 15-5080-03

AOD

316SS

 

AOD

Used

200

50 PSI

Wilden 15-5080-03

AOD

316SS

 

AOD

Used

200

50 PSI

Wilden 3"

AOD

CI

Bna

AOD

Used Rebuilt

200

50 PSI

Wilden M15 3"

AOD

Alum

 

AOD

Unused

200

50 PSI

Wilden M15 3"

AOD

316SS

 

AOD

Used

GPM

Head

Make and Model Number

Type

Material

 

Type

Condition