KNAUERDOSING PUMPS

Browse our range of high pressure dosing pumps for precise dosing for laboratory and production applications.

High-Quality Dosing Pumps to Suit Your Applications

KNAUER dosing pumps are highly accurate two-piston pumps for applications in the chemical and pharmaceutical industries as well as in research and method development. They pump and dose aqueous and organic liquids, aggressive media, or liquid gases. The metering pumps impress with their high chemical resistance, excellent flow rate precision and low pulsation of the pumped medium in a wide range of applications.

Flow rates from 0.01 ml/min to 1000 ml/min
High pressure ranges up to 650 bar
Wide temperature ranges from -10 °C to 120 °C
Viscous liquids up to 1000 mPa s
Special features on request

KNAUER dosing pumps are integrated easily in your dosing application due to an independent control via display or touchscreen. To learn more about our available inline dosing systems, get in touch today using the link below. A member of our team will be more than happy to help guide you towards the ideal instrument.

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Available Dosing Pumps

BlueShadow Pump 40P

The BlueShadow Pump 40P was designed to provide exceptionally precise and reliable solvent delivery for a wide range of dosing applications. Exchangeable pump heads with maximum flow rates of 10 and 50 ml/min cover a wide range of high-pressure dosing tasks. Practically pulse-free flow is achieved by our enhanced smart drive control which actively prevents pressure ripple instead of just dampening it. The improved design features a built-in inline filter and low dead volume fluidic path. Change your metering rate with the wipeable membrane keyboard or use the remote control from your process control system. Pump heads for high-temperature applications enable solvent delivery at up to 120°C.

Minimize temperature gradients by adding a pump head heater and insulation sleeve.

BlueShadow Pump 80P

The BlueShadow Pump 80P delivers stable and precise solvent flow for your dosing application. Available in stainless steel or biocompatible titanium versions, the pump heads enable a wide range of applications. The integrated automatic recognition of the pump head with RFID technology allows the fast adaption of the pump. Change from low-flow organic solvent delivery to high-flow biocompatible buffer metering with minimum downtime.

By adding one or more additional pumps, binary, ternary or even quaternary high pressure mixing gradient systems can be easily configured. The pump can also be equipped with a binary or ternary gradient valve block to configure cost-effective low-pressure gradient mixing systems. Exchangeable pump heads for flow rates up to 1 000 ml/min and pressures up to 40 MPa make it possible to easily adapt the pump to changing performance requirements and allow simple maintenance.

AZURA® Pump P 2.1S

AZURA® Pump P 2.1S was developed for high-pressure dosing applications of up to 400 bar and for flow rates of up to 50 ml/min. Whenever a compact and the easy-to-integrate pump is required, this pump is a perfect choice. The exchangeable pump heads are compatible with a wide range of chemicals and the versatile control options allow easy remote and standalone operation. For aggressive liquids, a Hastelloy® C version is available.

AZURA® Pump P 4.1S

AZURA® Pump P 4.1S was developed for high-pressure dosing applications of up to 400 bar and for flow rates of up to 50 ml/min. Whenever a compact and the easy-to-integrate pump is required, this pump is a perfect choice. The pump contains a manual purge valve with a built-in pressure sensor. The pump automatically stops the flow when minimum or maximum pressure limits are reached. The exchangeable pump heads are compatible with a wide range of chemicals and the versatile control options allow easy remote and standalone operation.

What Our Customers Say

If you are still unsure, why not take a look at what some of our previous customers have said about purchasing their instruments from Verulam Scientific? Use the link below to view our client testimonials.

TESTIMONIALS

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If you would like further information on the Knauer Dosing Pumps, please fill in the form below and a member of the team will be in touch.

FAQs

How Do Knauer Dosing Pumps Ensure Precision and Accuracy?

Once assembled, Knauer dosing pumps are calibrated to maintain accurate fluid delivery. This calibration data is then stored on the pump head’s RFID chip to ensure optimal accuracy is maintained even when changing the pump head to carry out a different dosing task.

How Do I Maintain a Knauer Dosing Pump?

Some of our top tips for maintaining a dosing pump are as follows:

After each operation, the pump and all its components should be flushed after each operation.
You should also flush the pump to ensure the tubing is clean before changing solvent. This will also remove air bubbles in the tubing and capillary.
If buffers have been used, the pump should be flushed with water.
If aggressive solvents have been used, flush the pump with isopropanol.
Check valves can be cleaned by sonicating with isopropanol for 10 minutes.

Can Knauer Dosing Pumps Be Integrated Into Automated Systems?

The built-in PID controller of the flowmeter sends an analog control signal to the Knauer dosing pump when a Mass Flow Controller is combined with it. This combination of dosing pump and flowmeter allows automated filling limits and batch dosing.

What Types of Liquids Can Be Handled With a Knauer Dosing Pump?

Knauer dosing pumps are incredibly versatile, making them suitable for a wide range of liquid handling applications, including:

Solvents

Viscous oils

Aggressive substances

Radioactive liquids

If you are unsure of whether a Knauer dosing pump is suitable for your application, don’t hesitate to contact us to find out more.