diaphragm-pump-maximum-operating-temperature-82-degree-celsius.png

Maximum operating temperature: 82 °C

Are you looking for an air-operated double diaphragm pump? In this category you will find a large selection of Versamatic diaphragm pumps with a maximum operating temperature of 82 °C.

If you are not sure about certain filter features, you can also skip them and select the next feature. If all else fails and you don't know what to do, you can also contact our experts.

Select characteristics

235 Items
SKU:
E8PP5BPP9
HAN:
E8PP5BPP9
Item weight:
1,40 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 3/8 Inch
  • Flow rate: 26 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 2,5 mm
SKU:
E8PP6XPP9
HAN:
E8PP6XPP9
Item weight:
1,40 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 3/8 Inch
  • Flow rate: 26 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 2,5 mm
SKU:
E6PP5B550A
HAN:
E6PP5B550A
Item weight:
1,50 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/4 Inch
  • Flow rate: 19 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 1,0 mm
SKU:
E6PP5B550A-E4
HAN:
E6PP5B550A-E4
Item weight:
1,50 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/4 Inch
  • Flow rate: 19 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 1,0 mm
SKU:
E6PP6X550A
HAN:
E6PP6X550A
Item weight:
1,50 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/4 Inch
  • Flow rate: 19 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,0 mm
SKU:
E6PP6X650A
HAN:
E6PP6X650A
Item weight:
1,50 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/4 Inch
  • Flow rate: 19 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,0 mm
SKU:
E6PP6X650A-E0
HAN:
E6PP6X650A-E0
Item weight:
1,50 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/4 Inch
  • Flow rate: 19 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,0 mm
SKU:
E6KP5B550A
HAN:
E6KP5B550A
Item weight:
1,80 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/4 Inch
  • Flow rate: 19 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: PVDF
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 1,0 mm
SKU:
E6KP6X550A
HAN:
E6KP6X550A
Item weight:
1,80 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/4 Inch
  • Flow rate: 19 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: PVDF
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,0 mm
SKU:
E6KP6X650A
HAN:
E6KP6X650A
Item weight:
1,80 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/4 Inch
  • Flow rate: 19 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: PVDF
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,0 mm
SKU:
E8KP5BKK9
HAN:
E8KP5BKK9
Item weight:
2,00 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 3/8 Inch
  • Flow rate: 26 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: PVDF
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 2,5 mm
SKU:
E8KP6XKK9
HAN:
E8KP6XKK9
Item weight:
2,00 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 3/8 Inch
  • Flow rate: 26 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: PVDF
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 2,5 mm
SKU:
E5AP1R229C
HAN:
E5AP1R229C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: Neoprene® - CR
  • Solids size: max. 1,6 mm
SKU:
E5AP1R559C
HAN:
E5AP1R559C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: Neoprene® - CR
  • Solids size: max. 1,6 mm
SKU:
E5AP2R229C
HAN:
E5AP2R229C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: BunaN® - NBR - Nitrile
  • Solids size: max. 1,6 mm
SKU:
E5AP2R529C
HAN:
E5AP2R529C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: BunaN® - NBR - Nitrile
  • Solids size: max. 1,6 mm
SKU:
E5AP3R339C
HAN:
E5AP3R339C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: FKM - Viton®
  • Solids size: max. 1,6 mm
SKU:
E5AP4R559C
HAN:
E5AP4R559C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: EPDM - Nordel™
  • Solids size: max. 1,6 mm
SKU:
E5AP5F559C
HAN:
E5AP5F559C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 1,6 mm
SKU:
E5AP5T559C
HAN:
E5AP5T559C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 1,6 mm
SKU:
E5AP6X559C
HAN:
E5AP6X559C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,6 mm
SKU:
E5AP6X569C
HAN:
E5AP6X569C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,6 mm
SKU:
E5AP6X669C
HAN:
E5AP6X669C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,6 mm
SKU:
E5AP6X739C
HAN:
E5AP6X739C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,6 mm
SKU:
E5AP6XSS9C
HAN:
E5AP6XSS9C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,6 mm
SKU:
E5AP7X759C
HAN:
E5AP7X759C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: Hytrel® - TPC
  • Solids size: max. 1,6 mm
SKU:
E5PP1R259D
HAN:
E5PP1R259D
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Neoprene® - CR
  • Solids size: max. 1,6 mm
SKU:
E5PP2R259D
HAN:
E5PP2R259D
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: BunaN® - NBR - Nitrile
  • Solids size: max. 1,6 mm
SKU:
E5PP2R259D-DRUM
HAN:
E5PP2R259D-DRUM
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: BunaN® - NBR - Nitrile
  • Solids size: max. 1,6 mm
SKU:
E5PP2R559D
HAN:
E5PP2R559D
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: BunaN® - NBR - Nitrile
  • Solids size: max. 1,6 mm
SKU:
E5PP3R359D
HAN:
E5PP3R359D
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: FKM - Viton®
  • Solids size: max. 1,6 mm
SKU:
E5PP3R359D-DRUM
HAN:
E5PP3R359D-DRUM
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: FKM - Viton®
  • Solids size: max. 1,6 mm
SKU:
E5PP3R559D
HAN:
E5PP3R559D
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: FKM - Viton®
  • Solids size: max. 1,6 mm
SKU:
E5PP4R559D
HAN:
E5PP4R559D
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: EPDM - Nordel™
  • Solids size: max. 1,6 mm
SKU:
E5PP5F559D
HAN:
E5PP5F559D
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 38 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 1,6 mm
SKU:
E5PP5T559D
HAN:
E5PP5T559D
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 38 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 1,6 mm
SKU:
E5PP5T559D-DRUM
HAN:
E5PP5T559D-DRUM
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 38 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 1,6 mm
SKU:
E5PP5TS59D
HAN:
E5PP5TS59D
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 38 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 1,6 mm
SKU:
E5PP6X559D
HAN:
E5PP6X559D
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,6 mm
SKU:
E5PP6X659D
HAN:
E5PP6X659D
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,6 mm
SKU:
E5PP6X659D-DRUM
HAN:
E5PP6X659D-DRUM
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,6 mm
SKU:
E5PP6XS59D
HAN:
E5PP6XS59D
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,6 mm
SKU:
E5PP7X759D
HAN:
E5PP7X759D
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Hytrel® - TPC
  • Solids size: max. 1,6 mm
SKU:
E7AP1R229C
HAN:
E7AP1R229C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 3/4 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: Neoprene® - CR
  • Solids size: max. 1,6 mm
SKU:
E7AP2R229C
HAN:
E7AP2R229C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 3/4 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: BunaN® - NBR - Nitrile
  • Solids size: max. 1,6 mm
SKU:
E7AP5T559C
HAN:
E7AP5T559C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 3/4 Inch
  • Flow rate: 32 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 1,6 mm
SKU:
E7AP6X669C
HAN:
E7AP6X669C
Item weight:
3,90 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 3/4 Inch
  • Flow rate: 45 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Aluminum
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,6 mm
SKU:
E5KP2R259D
HAN:
E5KP2R259D
Item weight:
5,40 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: PVDF
  • Diaphragm material: BunaN® - NBR - Nitrile
  • Solids size: max. 1,6 mm
SKU:
E5KP3R359D
HAN:
E5KP3R359D
Item weight:
5,40 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: PVDF
  • Diaphragm material: FKM - Viton®
  • Solids size: max. 1,6 mm
SKU:
E5KP5F559D
HAN:
E5KP5F559D
Item weight:
5,40 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 38 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: PVDF
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 1,6 mm
SKU:
E5KP5T559D
HAN:
E5KP5T559D
Item weight:
5,40 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 38 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: PVDF
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 1,6 mm
SKU:
E5KP6X559D
HAN:
E5KP6X559D
Item weight:
5,40 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: PVDF
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,6 mm
SKU:
E5KP6X659D
HAN:
E5KP6X659D
Item weight:
5,40 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: PVDF
  • Diaphragm material: Santoprene® - TPE
  • Solids size: max. 1,6 mm
SKU:
E5KP7X759D
HAN:
E5KP7X759D
Item weight:
5,40 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1/2 Inch
  • Flow rate: 42 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: PVDF
  • Diaphragm material: Hytrel® - TPC
  • Solids size: max. 1,6 mm
SKU:
E1PP1R129C
HAN:
E1PP1R129C
Item weight:
7,70 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1 Inch
  • Flow rate: 163 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Neoprene® - CR
  • Solids size: max. 3,2 mm
SKU:
E1PP2R229C
HAN:
E1PP2R229C
Item weight:
7,70 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1 Inch
  • Flow rate: 163 Litres per minute
  • Delivery pressure: max. 7,0 bar
  • Housing material: Polypropylene
  • Diaphragm material: Nitrile - Buna Rugged
  • Solids size: 3,1 mm
SKU:
E1PP3R339C
HAN:
E1PP3R339C
Item weight:
7,70 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1 Inch
  • Flow rate: 163 Litres per minute
  • Delivery pressure: max. 7,0 bar
  • Housing material: Polypropylene
  • Diaphragm material: FKM - Viton Rugged
  • Solids size: 3,1 mm
SKU:
E1PP4R449C
HAN:
E1PP4R449C
Item weight:
7,70 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1 Inch
  • Flow rate: 163 Litres per minute
  • Delivery pressure: max. 7,0 bar
  • Housing material: Polypropylene
  • Diaphragm material: EPDM - Nordel Rugged
  • Solids size: 3,1 mm
SKU:
E1PP5F5T9C
HAN:
E1PP5F5T9C
Item weight:
7,70 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1 Inch
  • Flow rate: 163 litres per minute
  • Delivery pressure: 6,9 bar
  • Housing material: Polypropylene
  • Diaphragm material: Teflon® - PTFE
  • Solids size: max. 3,2 mm
SKU:
E1PP5T5T9C
HAN:
E1PP5T5T9C
Item weight:
7,70 kg
  • Self-priming air-operated diaphragm pump (dry)
  • Connection size: 1 Inch
  • Flow rate: 163 Litres per minute
  • Delivery pressure: max. 7,0 bar
  • Housing material: Polypropylene
  • Diaphragm material: PTFE (2-Pc)
  • Solids size: 3,1 mm