Calibration pots (Calipot)

Prochem Calipots are used to confirm correct dosing rates from system dosing pumps.

The Calipot is normally filled to a set level. The dosing pumps are then fed from it for a pre-set period – usually one minute or more. Next, the pumping rate is then checked against the time-calculated flow rate.

Calipots are normally a permanent part of the installation and should have isolating valves so that they can be used in and out of circuit to suit operational needs.

All standard Calipots are designed for atmospheric pressure operation but pressurised units can be supplied to order. PVC units utilise a transparent PVC tube and solid PVC base and top. Metal units use a rugged precision borosilicate glass measuring cylinder clamped between the base and top. Acrylic tube is also available in some sizes. In all cases the scale is mounted directly on the measuring cylinder.

Two types are available – base mounted and backboard mounted. For glass tubed units protective 316L metal cage shrouds are available as an option for rough or toxic duty applications. Note base mounted are only supplied for the larger sizes.


PVC / Glass / Polypropylene / PVDF / PTFE / 316L
Titanium and other exotic metals to suit most liquids


Click here to specify your Calibration Pot

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Information required for quotation

  • Size of Calipot required or pump delivery rate
  • Details of the liquid handled by the system or any preferred construction materials
  • Details of any preferred connection size or type