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4/6 PVDF

4x6mm PVDF Dosing Tube

4x6mm PVDF dosing tube

4x6mm PVDF dosing tube is available in lengths up to a 100 metre long continuous coil.

4x6mm PVDF Dosing Tube

PolyVinyliDene Fluoride or PVDF dosing tube is available with an internal diameter of 4mm and an external diameter of 6mm for with our chemical dosing pumps across the following dosing pump series:-

  • HY-BL
  • AT1
  • AT2
  • AT3

PVDF offers excellent chemical resistance, second only to PTFE dosing tubing, and allows for a greater operational pressure.  PVDF is suitable for most dosing applications and as the PVDF material matches the head material of dosing pumps supplied for use with concentrated chemical reagents, you can have confidence in the chemical compatibility.

We strongly recommend checking the compatibility of your chemical reagent with the PVDF dosing tube, using our chemical compatibility checker.

4x6mm PVDF Dosing Tube Properties

Internal DiameterOutside DiameterTolerancesWeightBurst PressureTemp. RangeBend Diameter
4mm 6mm ±0.10 mm 28.0 g/m 110 Bar -40°C to + 140°C 100mm

Technical information for use as a guide only.  Pressure values given are based on the short term burst pressure at 20°C.  Any increase in temperature above 20°C will result in a decline in working pressure values.  We strongly recommend you check our chemical compatibility database and speak to your chemical supplier, to ensure that all materials are compatible with the chemical to be dosed.

4x6mm PVDF Dosing Tube Features & Benefits

4x6mm PVDF dosing tube is an excellent choice of material for use as a dosing tube.  The chemical properties of PVDF give a dosing tube that is very hard, measuring 78" on the Shore D scale. It's resistant to abrasion and it offers full UV protection making it an excellent medium for chemicals like sodium hypochlorite.

PVDF is highly resistant to even concentrated chemical reagents and is suitable for elevated pressures, making it ideal for use in chemical dosing.  We still recommend that PVDF tubing is used double confined / with a containment pipe and that you check that it's chemically compatible using our chemical resistance database.

4x6mm PVDF dosing tube is available in continuous lengths up to 100 metres long or cut to size.

4/6 PVDF Specifications

  • Specifications


    4x6mm PVDF Dosing Tube

    Model Number:- 4/6 PVDF

    Internal Diameter:- 4mm

    External Diameter:- 6mm

    Tolerance:- ±0.10mm

    Weight:- 28.0 Grams / Metre

    Burst Pressure (at 20°C):- 110 Bar

    Bend Diameter:- 110mm

    Minimum Temperature:- -20°C

    Maximum Temperature:- +140°C

  • Applications


    4 x 6mm PVDF is suitable for use with chemical dosing pumps that use 4 x 6mm dosing tube, including the following series of dosing pumps:-

    4x6mm PVDF tubing offers very good chemical resistance and suitable for use with elevated pressures. PVDF also is low in permeability making it ideal for the transfer of ultra-pure materials.

    The high pressure and very good chemical resistance properties make PVDF an excellent choice of dosing tube for use with dosing pumps

    We strongly recommend that you check that PVDF is compatible with your chemical reagent using our chemical compatibility database or with your chemical supplier and that all chemical dosing tube is protected from frost, direct sunlight and is installed inside a secondary pipe or hose to provide mechanical protection and containment.

    Our AT Series of dosing pumps are available with wetted parts in PVDF to ensure greater chemical compatibility. Pairing the dosing pump with a PVDF dosing tube ensures that all parts in contact with the chemical reagent are the same - ensuring commonality across the process.

  • Appearance


    4 x 6mm PVDF Dosing Tube is milky white in colour and almost totally opaque and the PVDF tubing is not stamped

    PVDF has a number of inherent properties that are attractive for use in the transfer of chemical reagents or ultra-pure materials. It offers:-

    • A low friction co-efficient
    • A smooth bore
    • UV Resistance
    • Highly scratch resistant
    • Very Hard (78 on the Shore D Scale)
    • Resists permeating the carried fluid

    4 x 6mm PVDF Dosing Tube is available in continuous lengths up to 100 metres in length or cut to specification. 


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