Cleaning dosing needles quickly and reliably

Correct results are only guaranteed with clean dosing needles

Be it in the field of haematology, clinical chemistry or immunology: Reliability and accuracy are a basic requirement. After each test, your analysis device must clean the dosing needles residue-free. In other words: The faster you clean your dosing needles, the more analyses can be done in an hour. At the same time, you are able to handle high sample throughputs in a short period of time in order to work efficiently.

Discover how you can clean your dosing needles equally economically, quickly and reliably!

Top 3 challenges when cleaning dosing needles

How are dosing needles cleaned?

After each dosing operation, dosing needles must be cleaned from the inside and the outside residue-free. An air cushion prevents both cleaning agent and medium from entering the syringe pump, preventing its contamination.

Step 1
The needle is dipped in a cleaning solution, which cleans it on the outside.

Step 2
The inside of the needle is cleaned by pumping cleaning agent through the needle.

Since Bürkert system components work so well together, you can speed up your cleaning processes.

Greater efficiency thanks to faster cleaning processes

The Bürkert solution ensures error-free and fast test results: Our valves are designed to enable high flow rates and to switch with exceptional precision. This allows you to speed up your cleaning process – while maintaining the same quality of cleaning. The result is efficiency at its best.

How can you profit from a high Kv value?

The Kv value is also referred to as the flow coefficient. It indicates the calculated quantity of liquid or gas that can flow through an open valve in a given period of time.

Saving costs: If the flow coefficient is high, less pressure drop is required to convey gases or liquids through the valve. This allows you to reduce or minimise pumps and compressors and to save costs.

Saving costs: If the flow coefficient is high, less pressure drop is required to convey gases or liquids through the valve. This allows you to reduce or minimise pumps and compressors and to save costs.

Our solutions ensure greater reliability

Cleaning dosing needles efficiently

We have optimised the Bürkert system components to enable faster cleaning and higher sample throughput. Calculate it yourself!

Let us assume that your analysis device manages 2,400 tests in an hour. This means that an individual cycle, including cleaning, takes 1.5 seconds. Because Bürkert valves have a higher flow coefficient, they rinse up to 20% faster – managing one cycle in just 1.2 seconds instead of 1.5, for example. Calculated over the space of an hour, you can perform an additional 600 tests and cleaning cycles with Bürkert valves. The result: Higher sample throughput and greater efficiency for you.

Conventional solution                           Bürkert system solution

Internal volume

sec. per cleaning cycle

tests per min.

tests per hour

600 more tests and cleaning cycles

Suitable products for your cleaning application

2/2 or 3/2-way Whisper Valve with media separation

Type 6724

• Highest chemical resistance
• Compact design with 8.9 mm installation width
• DN 0.8 mm (vacuum up to 5 bar) and 1.2 mm (vacuum up to 3 bar)
• Very fast, almost silent switching with < 20 dB (A) and very low power consumption
• High back-pressure tightness, excellent cleanability and 100% duty cycle

2/2 or 3/2-way rocker solenoid valve with separating diaphragm

Type 0127

• For the highest chemical resistance requirements
• Compact design with 16 mm width and a flow coefficient of up to 0.058
• Proven reliability since 1993
• Flexible design for customised solutions
• High back-pressure tightness, excellent cleanability and 100% duty cycle

Plunger valve 2/2 way direct-acting

Type 6011

• Direct-acting and compact small-format valve with diameter of up to DN 2.4
• Screwed coil system
• Simple and quick flange or manifold installation
• Quick coupling (push-in fitting) for plug-in hose connections