How does a double diaphragm pump work?

An AODD pump has two opposing diaphragms alternately moved by compressed air. The principle is low-maintenance, dry-run resistant and handles solids-laden or high-viscosity media.

What is the advantage over an electric pump?

No mains power required, ATEX-approved, dry-run resistant, self-priming and handles aggressive media that would damage electric pumps.

What compressed air pressure is required?

Most double diaphragm pumps require 4 to 7 bar – corresponding to the standard compressed air network in workshops and industrial plants.

Double Diaphragm Pumps · Pneumatic

Pneumatic Double Diaphragm Pumps for chemicals, oils & aggressive media

Q: Are double diaphragm pumps suitable for waste oil?

Yes. The PIUSI MA130 and MA140 are specifically designed for high-viscosity oils and waste oil and pump reliably even at low temperatures.

Pneumatic double diaphragm pumps (AODD) for the safe transfer of oils, fuels, waste oil, AdBlue, chemicals, acids and bases – self-priming, dry-run resistant, ATEX-approved. No mains power required. From SAMOA, GRACO, MATO and PIUSI.

✅ No power – compressed air only ✅ Self-priming & dry-run resistant ✅ ATEX-approved versions available ✅ SAMOA · GRACO · MATO · PIUSI

Jump to: Pump types Which pump suits me? FAQ

Pompa a membrana ad aria compressa "Directflo®" DF 30

Compressed Air Diaphragm Pump "Directflo®" DF 30

Flow Rate: 38 liters/minute
Transmission Ratio: 1:1
Medium: AdBlue® urea solution, antifreeze, coolants, windshield washer fluid

Delivery time: 1-3 days

€588.00* €789.00*

€494.12 without VAT

GRACO pompa a diaframma a doppia membrana azionata ad aria compressa con doppio ingresso 61 l/min

GRACO Air-Operated Double Diaphragm Pump with Dual Inlet, 61 L/min 💧🔧

Flow Rate: 60 L/min
Inlet and Outlet: 3/4" G
Medium: Antifreeze, Windshield Washer Fluid, Water, Oil

Delivery time: 2-5 days

€818.00* €937.00*

€687.39 without VAT

GRACO Pompa a diaframma doppio azionata ad aria compressa 61 l/min per acqua, protezione antigelo, olio,

GRACO Air-Operated Double Diaphragm Pump 61 L/min for Water, Antifreeze, Oil 🌊🛢️

Flow Rate: 61 l/min
Inlet Connection: 3/4 inch
Outlet Connection: 3/4 inch
Medium: Water, Antifreeze, Oil, Windshield Washer Fluid

Delivery time: 2-5 days

€828.00* €948.00*

€695.80 without VAT

GRACO pompa a diaframma doppio azionata ad aria per la soluzione di urea AdBlue®

GRACO Air-Operated Double Diaphragm Pump for AdBlue® Urea Solution

Flow Rate: 57 liters/min
Inlet Connection: 1/2“
Outlet Connection: 1/2“
Medium: AdBlue® Urea Solution

Delivery time: 2-5 days

€848.00* €899.00*

€712.61 without VAT

Pompa a membrana doppia azionata da aria compressa (EX) PRO ONE 15 - MA 50 L/min per diesel, cherosene e olio

Compressed Air Double Diaphragm Pump (EX) PRO ONE 15 - MA 50 L/MIN for Diesel, Kerosene, and Oil 🚛⛽️

Flow Rate: up to 50 liters per minute
Maximum Operating Pressure: 7 bar
Self-priming up to 7 meters
Maximum Solid Transfer Diameter: 2.5 mm

Delivery time: 5-10 Tage

€917.00*

€770.59 without VAT

Pompa pneumatica a membrana doppia DP-60

MATO Pneumatic Double Diaphragm Pump DP-60

Flow rate: approx. 60 l/min
Pressure ratio: 1:1
Max. operating pressure: 8 bar
Flow approx. 60 l/min (free outlet)
Handles contaminated media up to 1.5 mm particle size

Delivery time: 2-5 days

€921.00*

€773.95 without VAT

GRACO pompa pneumatica a membrana doppia per carburante, portata 121 l/min

GRACO Air-Operated Double Diaphragm Pump with High Free Flow 🌊

Flow Rate: 189 L/min
Inlet Connection: 1"
Outlet Connection: 1"
Medium: Antifreeze, Windshield Washer Fluid, Water, Oil

Delivery time: 2-5 days

€930.00* €1,065.00*

€781.51 without VAT

Pompa a membrana pneumatica PIUSI MA130 per il trasferimento di olio ad alta viscosità, ad es. olio esausto.

PIUSI MA 130 Air-Operated Diaphragm Pump, 50 l/min, Aluminium Body, 1/2" G

Fluids: oil, diesel
Flow rate: max. 50 l/min
Connection: inlet/outlet 1/2" G F, air connection G 3/8" F
Air-operated diaphragm pump, explosion-proof
Interchangeable inlet/outlet, built-in diffuser

Delivery time: 2-5 days

€950.50*

€798.74 without VAT

Pompa a doppio diaframma alimentata ad aria compressa (EX) PRO ONE 25 - MA 160 l/min per diesel, cherosene e olio

Compressed Air Double Diaphragm Pump (EX) PRO ONE 25 - MA 160 L/MIN for Diesel, Kerosene, and Oil 🚛⛽️

Flow Rate: Up to 160 liters per minute
Maximum Operating Pressure: 7 bar
Self-Priming Up to 7 Meters
Material: Aluminum Housing, NBR Membranes

Delivery time: 5-10 Tage

€951.50*

€799.58 without VAT

Pompa a membrana pneumatica "Directflo®" DF 50 Pompa a doppia membrana per dosaggio, trasferimento e aspirazione

Compressed Air Diaphragm Pump "Directflo®" DF 50 Double Diaphragm Pump for Dosing, Transferring, and Suctioning 💧

Translation Ratio: 1:1
Flow Rate: approx. 50 l/min
Volume per Stroke: approx. 0.1
Air Pressure: 1.5 to 8 bar
Max. Particle Size: 3 mm
Max. Dry Suction Height: approx. 6 m
Max. Suction Height (pre-filled): approx. 8 m
Weight: approx. 3.5 kg

Delivery time: 2-5 days

€957.50*

€804.62 without VAT

PIUSI MA140 pompa a membrana pneumatica per il trasferimento di olio con una portata fino a 100 L/min

PIUSI MA 140 Air-Operated Diaphragm Pump, 100 l/min, Polypropylene Body, 1" G

Fluids: oil, diesel
Flow rate: max. 100 l/min
Connection: inlet/outlet 1" G F, air connection G 3/8" F
Air-operated diaphragm pump, explosion-proof
Interchangeable inlet/outlet, built-in diffuser

Delivery time: 2-5 days

€1,001.00*

€841.18 without VAT

Pompa a membrana pneumatica "Directflo®" DF 100 per soluzione di urea AdBlue®

Compressed Air Diaphragm Pump "Directflo®" DF 100 for AdBlue® Urea Solution

Flow Rate: up to 100 L/min
Transmission Ratio: 1:1
Medium: AdBlue® urea solution, used oil, antifreeze, lubricants

Delivery time: 2-5 days

€1,058.00*

€889.08 without VAT

Pompa a membrana pneumatica PIUSI MA180 per il trasferimento di olio, con una portata fino a 150 l/min.

PIUSI MA 180 Air-Operated Diaphragm Pump, 150 l/min, Aluminium Body, 1" G

Fluids: oil, diesel
Flow rate: max. 150 l/min
Connection: inlet/outlet 1" G F, air connection G 3/8" F
Air-operated diaphragm pump, explosion-proof
Interchangeable inlet/outlet, built-in diffuser

Delivery time: 2-5 days

€1,271.00*

€1,068.07 without VAT

GRACO Air-Operated Double Diaphragm Pump for Fuel 121 L/min 🚀

Flow Rate: 121 liters/min
Inlet/Outlet: 1" G
Includes Relief Valve

Delivery time: 2-5 days

€1,293.00* €1,481.00*

€1,086.55 without VAT

MATO pompa pneumatica a membrana doppia DP 60 T per montaggio su fusti di olio da 200 litri

MATO Pneumatic Double Diaphragm Pump DP 60 T for Installation on 200-Liter Oil Drums

Flow rate: approx. 60 l/min
Pressure ratio: 1:1
Max. operating pressure: 8 bar
Flow approx. 60 l/min (free outlet)
Handles contaminated media up to 1.5 mm particle size

Delivery time: 2-5 days

€1,295.00*

€1,088.24 without VAT

MATO pompa pneumatica a doppia membrana DP-160

MATO Pneumatic Double Diaphragm Pump DP-160

Flow rate: approx. 160 l/min
Pressure ratio: 1:1
Max. operating pressure: 8 bar
Flow approx. 160 l/min (free outlet)
Handles contaminated media up to 2.0 mm particle size

Delivery time: 2-5 days

€1,439.00*

€1,209.24 without VAT

MATO pompa pneumatica a diaframma doppio DP-50 PP

MATO Pneumatic Double Diaphragm Pump DP-50 PP

Flow rate: approx. 50 l/min
Pressure ratio: 1:1
Max. operating pressure: 8 bar
Flow approx. 50 l/min (free outlet)
Handles contaminated media up to 1.5 mm particle size

Delivery time: 2-5 days

€1,446.00*

€1,215.13 without VAT

Pompa a membrana doppia per lo smaltimento dell'olio 1/2'', pneumatica

Double Diaphragm Pump for Oil Disposal 1/2'', Pneumatic 🌟

Flow rate: approximately 20 liters per minute
Pressure connection internal thread: 1/2 "
Suction connection internal thread: 1/2 "
Maximum air pressure: 7.5 bar

Delivery time: 2-5 days

€1,565.00* €1,599.36*

€1,315.13 without VAT

Pompa pneumatica a doppia membrana DF-250 Alu per dosaggio, travaso e aspirazione

Compressed Air Double Diaphragm Pump DF-250 Alu for Dosing, Transferring, and Suctioning 🌟

Flow Rate: 100 l/min
Transmission Ratio: 1:1
Volume per Stroke: 0.62 l
Air Pressure: 1.5 to 8 bar
Max. Particle Size: 6 mm
Max. Dry Suction Height: 5 m
Max. Suction Height, Pre-filled: 8 m
Weight: 20 kg
Suction Side Connection: 1 1/2" BSP female and flange
Discharge Side Connection: 1 1/2" BSP female and flange
Air Connection: 3/8" NPSM female

Delivery time: 2-5 days

€1,821.00*

€1,530.25 without VAT

Pompa a doppia membrana per lo smaltimento dell'olio, 3/4'', pneumatica.

Double Diaphragm Pump for Oil Disposal 3/4'', Pneumatic 🚀

Flow Rate: approximately 40 l/min
Pressure Connection (Female Thread): 3/4 "
Suction Connection (Female Thread): 1 "
Maximum Air Pressure: 7.5 bar

Delivery time: 2-5 days

€2,142.00* €2,190.79*

€1,800.00 without VAT

Pompa pneumatica a membrana PIUSI MA190 per il trasferimento di olio, con una portata fino a 220 l/min.

PIUSI MA 190 Air-Operated Diaphragm Pump, up to 220 l/min, 1 1/4"

Fluids: oil
Flow rate: up to 220 l/min
Connection: 1 1/4" G, air 1/2" F
Air-operated diaphragm pump for high flow rates
1 1/4" G connection, 1/2" F air connection

Delivery time: 2-5 days

€2,607.00*

€2,190.76 without VAT

Pompa a diaframma doppia, pneumatica, da 3/4'' con controllo del vuoto.

Pneumatic Double Diaphragm Pump 3/4'' with Vacuum Control 🌬️

Flow Rate: approximately 40 liters per minute
Pressure Connection (Internal Thread): 1/2 "
Suction Connection (Internal Thread): 1 "
Maximum Air Pressure: 7.5 bar
Power Supply: 230 V

Delivery time: 2-5 days

€3,083.00* €3,161.83*

€2,590.76 without VAT

Pompa a membrana doppia pneumatica da 1/2'' con controllo del vuoto.

Pneumatic Double Diaphragm Pump 1/2'' with Vacuum Control 💨

Flow Rate: approximately 20 liters per minute
Maximum Air Pressure: 7.5 bar
Pressure Connection (Internal Thread): 1/2 "
Suction Connection (Internal Thread): 1/2 "
Power Supply: 230 V

Delivery time: 2-5 days

€3,137.00* €3,217.17*

€2,636.13 without VAT

SAMOA Directflo®

DF 30 and DF 50 – compact double diaphragm pumps for general industrial applications. For dosing, transferring and extracting oils, fuels and aqueous media.

DF 30 · DF 50 Oils & fuels Industry

GRACO AODD Pumps

Versatile double diaphragm pumps for water, antifreeze, oil and AdBlue – with high free passage also for solids-laden media. Also available with dual inlet for special applications.

High free passage AdBlue Solids

PRO ONE – EX Version

ATEX-certified double diaphragm pumps for diesel, kerosene and oil – PRO ONE 15 with 50 l/min and PRO ONE 25 with 160 l/min. For use in Ex zones and with flammable liquids.

ATEX 50–160 l/min Diesel · Kerosene

PIUSI & MATO Oil Pumps

PIUSI MA130/MA140 and MATO DP-60 specifically for high-viscosity oils and waste oil – diaphragm pumps reliably handle viscous media that would overload gear or centrifugal pumps.

Waste oil High viscosity MA130 · DP-60

Which double diaphragm pump suits which application?

⚗️

Chemicals & Acids

Double diaphragm pumps are the first choice for aggressive media – acids, bases, solvents. Material selection is crucial: PP, PVDF or stainless steel, seals in PTFE or EPDM.

🛢️

Waste Oil & High Viscosity

The PIUSI MA130/MA140 are specifically designed for waste oil and high-viscosity oils. Diaphragm pumps handle viscous media that would overload gear or centrifugal pumps.

🔥

ATEX & Ex Zones

The PRO ONE EX versions are ATEX-certified for diesel, kerosene and flammable liquids in Ex zones. No electric motor – no spark risk, intrinsically safe.

💧

AdBlue & Water

The GRACO double diaphragm pump for AdBlue is made from food-grade materials – for urea solution 32.5%, water, antifreeze and other aqueous media.

🏭

High Throughput

For large transfer volumes: the PRO ONE 25 with 160 l/min or the GRACO with dual inlet for continuous operation in industrial filling and transfer systems.

🔌

No Power Available

All double diaphragm pumps operate purely on compressed air – ideal for outdoor areas, mobile use or locations without mains power. A compressed air network of 4–7 bar is sufficient.

Frequently Asked Questions about Double Diaphragm Pumps

A pneumatic double diaphragm pump (AODD) has two opposing diaphragms that are alternately moved by compressed air. When one diaphragm draws in, the other pushes out – this creates a continuous, pulsating flow. The principle is low-maintenance, dry-run resistant and handles solids-laden or high-viscosity media.

Double diaphragm pumps offer several advantages over electric pumps: no mains power required – runs on compressed air. ATEX-approved – no spark risk in Ex zones. Dry-run resistant – the pump is not damaged if it runs dry. Self-priming – draws medium from lower-lying containers. Handles aggressive media – acids, bases, solvents that would damage electric pumps.

Most double diaphragm pumps require an operating pressure of 4 to 7 bar at the compressed air connection – corresponding to the standard compressed air network in workshops and industrial plants. The output pressure of the pump roughly corresponds to the applied compressed air pressure.

PP (polypropylene) for aqueous acids, bases, AdBlue and water. PVDF for aggressive solvents and chemicals. Aluminium for fuels and oils (not for acids). Stainless steel for food-grade and high-purity media. Seals: PTFE for almost all chemicals, EPDM for aqueous media, Viton for fuels and solvents.

The free passage describes the maximum diameter of solid particles the pump can handle without clogging. Pumps with high free passage have larger valve balls and channels – ideal for sludgy, solids-laden or fibrous media such as dirty water, paints with pigments or media with sediment.

Yes – double diaphragm pumps are ideal for waste oil. Waste oil is highly viscous, can contain solids and is too thick for many electric pumps. The PIUSI MA130 and MA140 are specifically designed for high-viscosity oils and waste oil and pump reliably even at low temperatures.

Still unsure? We advise you free of charge!

Our specialist team helps you find the right double diaphragm pump for your medium, viscosity and operating conditions.

Call 036071 924340 Request a quote

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