Closures

Type “SU” - double closure

The “SU” type offers double protection during transportation. The closure is screwed into the dip tube in addition to the “S” closure.

  • Dip tube article number ending: “SU” (type “S” + “SU” fitted)
  • Tightening torque: closure type “S” generally 5-6 Nm, closure type “SU” 1-2 Nm
  • In case of questions about transport approvals for the different dip tubes and dip tube closures, please contact our technical sales department.
Product line
SizeMaterialItem-no.*
QC2
M2-Series
M42HDPE
G-SeriesM48HDPE

* The "S" closure has to be ordered separately.

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Type “S” - closed

The most widespread dip tube closure in the form of a 3/4” or 1” stopper. Dip tube article number ending: “S” A dust protection cap is supplied with QC2 dip tubes with “S” closure...
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Type “V” - ventilated

The ventilated version of type “S” with integrated PTFE non-woven fabric. Suitable for the transportation of hydrogen peroxide.

Versions for QC3, G-Series, M2-Series

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Type “T” - closed

The alternative to type “S” if a tamper proof closure needs to be attached

Versions for QC3, QC3, M2-Series

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Type “W” - ventilated

The ventilated version of type “T” with integrated PTFE non-woven fabric. Suitable for the transportation of hydrogen peroxide.

Versions for QC2, M2-Series

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Dip tube closure with pressure relief valve

Manual pressure relief valves allow a controlled compensation of the pressure inside the container.

  • Opens automatically in the event of negative pressure
  • Opens manually in the event of excess pressure
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Tamper proof closures

To make sure that the container is not opened or otherwise manipulated during transportation, dip tubes can be equipped with tamper proof closures.
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