PTFE

PTFE (polytetrafluoroethylene) offers almost universal chemical resistance – to concentrated acids and alkalis as well as solvents, fuels and oxidisers. In air-operated diaphragm pumps PTFE is used as a one-piece FUSION diaphragm or as a 2-piece diaphragm with an elastomer back-up, because PTFE itself has little elasticity. Pumps with this diaphragm are rated for fluid temperatures up to 100 °C (see the data sheet of each version).

Typical fluids

Aggressive chemicals, solvents, paints, high-purity fluids and any application where chemical compatibility is uncertain.

Typical applications

Acids: mineral and organic acids
Solvents: aromatic and aliphatic solvents, ketones, aldehydes, esters, chlorinated hydrocarbons, de-icers
Coatings: emulsions, latex, pigments, resins, solvents, thinners
Electroplating: aggressive acids and salts, residual sludges, waste water, neutralisation, caustic soda, ferric chloride
Pharma: liquids, creams and additives

Limits

With highly abrasive slurries PTFE wears faster than Santoprene or Neoprene – worth comparing.

Besides air-operated diaphragm pumps you also find SEKO metering pumps with PTFE diaphragm here – PTFE is the standard there for dosing acids, alkalis and disinfectants.

Matching pumps in our range

Versamatic air-operated double diaphragm pumps with this feature are available in these versions:

Port sizes: 1 1/2" (DN 40), 1" (DN 25), 1/2" (DN 15), 1/4" (DN 8), 2" (DN 50), 3" (DN 80), 3/4" (DN 20), 3/8" (DN 10)
Flow ranges: 0–20 l/min, 20–50 l/min, 50–100 l/min, 100–200 l/min, 200–400 l/min, 400–700 l/min, 700–1100 l/min
Housing materials: Aluminium, Stainless steel, Cast iron, Conductive polypropylene, PVDF, Polypropylene

All matching pumps are listed below – use the filters to narrow down flow rate, port size and materials.

Note: material information is for guidance only. Medium, concentration and temperature are decisive – if in doubt we check compatibility for your fluid.

Not sure which pump fits? Send us your medium, flow rate, pressure, temperature, density and viscosity – we will check the selection and reply with an offer.

Send technical enquiry

Air-operated diaphragm pump | 2 Inch | E2SA5T5S9C-HD-ATEX

Air-operated diaphragm pump | 2 Inch | E2SA5T5S9C-HD-ATEX

SKU:: AODD-E2SA5T5S9C-HD-ATEX
HAN:: E2SA5T5S9C-HD-ATEX
Item weight:: 65,80 kg

Self-priming air-operated diaphragm pump (dry)
Connection size: 2 Inch
Flow rate: 606 Litres per minute
Delivery pressure: max. 8,6 bar
With explosion protection (ATEX)
Housing material: Stainless Steel
Diaphragm material: PTFE (2-Pc)
Solids size: 6,0 mm

Air-operated diaphragm pump | 2 Inch | E2SA5T5S9C-HD-ATEX

10.814,72 € *

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Procurement time: 2 weeks
Delivery time: 5 - 10 Workdays (Abroad deviating)

Air-operated diaphragm pump | 2 Inch | E2SJ5F550C-SP-ATEX

Air-operated diaphragm pump | 2 Inch | E2SJ5F550C-SP-ATEX

SKU:: AODD-E2SJ5F550C-SP-ATEX
HAN:: E2SJ5F550C-SP-ATEX
Item weight:: 60,80 kg

Self-priming air-operated diaphragm pump (dry)
Connection size: 2 Inch
Flow rate: 549 Litres per minute
Delivery pressure: 8,6 bar
With explosion protection (ATEX)
Housing material: Stainless Steel
Diaphragm material: PTFE
Solids size: 6,4 mmFurther technical data
Compatible repair kits or spare parts

Air-operated diaphragm pump | 2 Inch | E2SJ5F550C-SP-ATEX

20.848,80 € *

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Procurement time: 2 weeks
Delivery time: 5 - 10 Workdays (Abroad deviating)

Air-operated diaphragm pump | 2 Inch | E2SJ5F5S0C-FP-ATEX

Air-operated diaphragm pump | 2 Inch | E2SJ5F5S0C-FP-ATEX

SKU:: AODD-E2SJ5F5S0C-FP-ATEX
HAN:: E2SJ5F5S0C-FP-ATEX
Item weight:: 65,80 kg

Self-priming air-operated diaphragm pump (dry)
Connection size: 2 Inch
Flow rate: 700 Litres per minute
Delivery pressure: max. 8,6 bar
With explosion protection (ATEX)
With FDA compliance
Housing material: Stainless Steel
Diaphragm material: PTFE Fusion
Solids size: 7,6 mm

Air-operated diaphragm pump | 2 Inch | E2SJ5F5S0C-FP-ATEX

10.642,17 € *

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Procurement time: 2 weeks
Delivery time: 5 - 10 Workdays (Abroad deviating)

Air-operated diaphragm pump | 2 Inch | E2SJ5T550C-FP-ATEX

Air-operated diaphragm pump | 2 Inch | E2SJ5T550C-FP-ATEX

SKU:: AODD-E2SJ5T550C-FP-ATEX
HAN:: E2SJ5T550C-FP-ATEX
Item weight:: 65,80 kg

Self-priming air-operated diaphragm pump (dry)
Connection size: 2 Inch
Flow rate: 617 Litres per minute
Delivery pressure: 8,6 bar
With explosion protection (ATEX)
With FDA compliance
Housing material: Stainless Steel
Diaphragm material: PTFE
Solids size: 6,4 mmFurther technical data
Compatible repair kits or spare parts

Air-operated diaphragm pump | 2 Inch | E2SJ5T550C-FP-ATEX

9.805,60 € *

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Procurement time: 2 weeks
Delivery time: 5 - 10 Workdays (Abroad deviating)

Air-operated diaphragm pump | 2 Inch | E2SJ5T550C-SP-ATEX

Air-operated diaphragm pump | 2 Inch | E2SJ5T550C-SP-ATEX

SKU:: AODD-E2SJ5T550C-SP-ATEX
HAN:: E2SJ5T550C-SP-ATEX
Item weight:: 60,80 kg

Self-priming air-operated diaphragm pump (dry)
Connection size: 2 Inch
Flow rate: 549 Litres per minute
Delivery pressure: 8,6 bar
With explosion protection (ATEX)
Housing material: Stainless Steel
Diaphragm material: PTFE
Solids size: 6,4 mmFurther technical data
Compatible repair kits or spare parts

Air-operated diaphragm pump | 2 Inch | E2SJ5T550C-SP-ATEX

20.196,68 € *

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Procurement time: 2 weeks
Delivery time: 5 - 10 Workdays (Abroad deviating)

Air-operated diaphragm pump | 2 Inch | E2SJ5T5S0C-ATEX

Air-operated diaphragm pump | 2 Inch | E2SJ5T5S0C-ATEX

SKU:: AODD-E2SJ5T5S0C-ATEX
HAN:: E2SJ5T5S0C-ATEX
Item weight:: 65,80 kg

Self-priming air-operated diaphragm pump (dry)
Connection size: 2 Inch
Flow rate: 617 Litres per minute
Delivery pressure: 8,6 bar
With explosion protection (ATEX)
Housing material: Stainless Steel
Diaphragm material: PTFE
Solids size: 6,4 mmFurther technical data
Compatible repair kits or spare parts

Air-operated diaphragm pump | 2 Inch | E2SJ5T5S0C-ATEX

10.823,05 € *

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Procurement time: 2 weeks
Delivery time: 5 - 10 Workdays (Abroad deviating)

Air-operated diaphragm pump | 2 Inch | E2SJ5T5S0C-FP-ATEX

Air-operated diaphragm pump | 2 Inch | E2SJ5T5S0C-FP-ATEX

SKU:: AODD-E2SJ5T5S0C-FP-ATEX
HAN:: E2SJ5T5S0C-FP-ATEX
Item weight:: 65,80 kg

Self-priming air-operated diaphragm pump (dry)
Connection size: 2 Inch
Flow rate: 700 Litres per minute
Delivery pressure: max. 8,6 bar
With explosion protection (ATEX)
With FDA compliance
Housing material: Stainless Steel
Diaphragm material: PTFE (2-Pc)
Solids size: 7,6 mm

Air-operated diaphragm pump | 2 Inch | E2SJ5T5S0C-FP-ATEX

9.990,05 € *

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Procurement time: 2 weeks
Delivery time: 5 - 10 Workdays (Abroad deviating)

Air-operated diaphragm pump | 2 Inch | E2SS5F550C-SP-ATEX

Air-operated diaphragm pump | 2 Inch | E2SS5F550C-SP-ATEX

SKU:: AODD-E2SS5F550C-SP-ATEX
HAN:: E2SS5F550C-SP-ATEX
Item weight:: 74,80 kg

Self-priming air-operated diaphragm pump (dry)
Connection size: 2 Inch
Flow rate: 549 Litres per minute
Delivery pressure: 8,6 bar
With explosion protection (ATEX)
Housing material: Stainless Steel
Diaphragm material: PTFE
Solids size: 6,4 mmFurther technical data
Compatible repair kits or spare parts

Air-operated diaphragm pump | 2 Inch | E2SS5F550C-SP-ATEX

21.663,95 € *

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Procurement time: 2 weeks
Delivery time: 5 - 10 Workdays (Abroad deviating)

Air-operated diaphragm pump | 2 Inch | E2SS5F559C-ATEX

Air-operated diaphragm pump | 2 Inch | E2SS5F559C-ATEX

SKU:: AODD-E2SS5F559C-ATEX
HAN:: E2SS5F559C-ATEX
Item weight:: 65,80 kg

Self-priming air-operated diaphragm pump (dry)
Connection size: 2 Inch
Flow rate: 595 Litres per minute
Delivery pressure: 8,6 bar
With explosion protection (ATEX)
Housing material: Stainless Steel
Diaphragm material: PTFE
Solids size: 6,0 mmFurther technical data
Compatible repair kits or spare parts

Air-operated diaphragm pump | 2 Inch | E2SS5F559C-ATEX

13.060,25 € *

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Procurement time: 2 weeks
Delivery time: 5 - 10 Workdays (Abroad deviating)

Air-operated diaphragm pump | 2 Inch | E2SS5F559C-HD-ATEX

Air-operated diaphragm pump | 2 Inch | E2SS5F559C-HD-ATEX

SKU:: AODD-E2SS5F559C-HD-ATEX
HAN:: E2SS5F559C-HD-ATEX
Item weight:: 65,80 kg

Self-priming air-operated diaphragm pump (dry)
Connection size: 2 Inch
Flow rate: 595 Litres per minute
Delivery pressure: 8,6 bar
With explosion protection (ATEX)
Housing material: Stainless Steel
Diaphragm material: PTFE
Solids size: 6,0 mmFurther technical data
Compatible repair kits or spare parts

Air-operated diaphragm pump | 2 Inch | E2SS5F559C-HD-ATEX

13.060,25 € *

Go to item

Procurement time: 2 weeks
Delivery time: 5 - 10 Workdays (Abroad deviating)

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