Which pumps fit you right?

2 Dosing liquids on demand





Pumps are used for a wide range of tasks in the food, chemical, and pharmaceutical industries.

These can include the conveying and dosing of liquid chromatography (HPLC) and pumps have always aqueous and organic liquids, highly viscous liquids, been a core competence of the company.

aggressive media, or liquid gases. Dosing at high or low temperatures (below 0 °C to over 100 °C) and at Low pulsation and high pressures of up to 400 bar are high pressures over 100 bar is also a common task.

a must in HPLC and are also ideal for high precision metering and liquid supply applications. KNAUER is Meeting this range of requests requires very adaptable highly adept at developing customized solutions, pumps. KNAUER develops analytical instrumentation thanks to decades of experience with our since 1962. The German based family business is OEM business partners.

highly experienced in the fi eld of high-performance Dosing pump features



2 Maximum back pressure up to 400 bar 2 Pump head components are available in a range of 2 Flow rate range: 0.01 – 1000 ml/min materials, even for aggressive media 2 Maximum viscosity up to 1000 mPa·s 2 Very low pulsation



2 Liquid temperature range: -10 – 120 °C

2 Flexible control (Ethernet, RS-232, analog signals) 2 Easily exchangeable pump heads 2 LabVIEW 2011 driver support (customizable and service-friendly) Other pump models or application tasks are available upon request. Please contact: dosing@knauer.net Technical data are subject to change without notice.

Front and back cover photo: © lickshots - Fotolia.com





Content

Find the most suitable pump High pressure dosing

02

Dosing liquids easily up to 400 bar High accuracy dosing

04

Combining pumps with mass fl ow controllers Dosing of aggressive liquids 06

Tackling dosing challenges with the right pump Low temperature & liquid gas dosing 08

Metering liquids below 0 °C and liquid gas High temperature dosing

10

Handling temperatures up to 120 °C without running hot Dosing highly viscous liquids 12

Getting exquisite results with viscous media 1



kphoto.com|Zsolt Biczó

Photo: © istoc

High pressure dosing

Dosing liquids easily up to 400 bar 2





KNAUER pumps are designed for feeding liquids under Pump requirements

high pressure. A selection of pump heads is available for customized chemical compatibility with a wide 2 High fl ow rate accuracy

range of liquids. Different fl ow rate ranges and an 2 Low pulsation

optimized pump design enable excellent performance 2 Compatibility with materials and high fl exibility for demanding low, medium, 2 High reproducibility

and high pressure dosing tasks. Pump heads can be exchanged quickly to adapt easily to changing applications.

Pump features



2 Easy to exchange pump heads available in sizes of 10 ml/min or 50 ml/min

500

10 ml pump head



2 High pressure capability up to 400 bar 50 ml pump head



2 Excellent fl ow rate accuracy and precision 400



2 Powerful and precise drive with low pulsation 300

e (bar)



2 Flexible control – possible through a 200

touch pad, via RS-232, Ethernet and Pressur 100

analog interface

0



2 Compact dimensions – it fi ts almost anywhere 2 Economical solution for simple dosing applications 0 10

20 30 40 50 60

Flow rate (ml/min)

Application examples

Capacity range for simple dosing applications 2 Metering of water



2 Metering of methanol



2 Metering of aromatic hydrocarbons (e.g. benzene or xylene)

Operating parameters

Max. delivery pressure

40 MPa (400 bar, 5800 psi) Flow rate range

0.01 – 50 ml/min

Max. viscosity

100 mPa·s

Liquid temperature range

20 – 60 °C (68 – 140 °F)

3



media.net|Ignacio Gonzalez Prado Photo: ©panther

High accuracy dosing

Combining pumps with mass fl ow controllers 4





Demanding metering applications for liquids with Pump requirements

different viscosities or precise batch dosing tasks can be achieved by combining KNAUER pumps with mass 2 Low pulsation

fl ow controllers. Since KNAUER pumps support a wide 2 High fl ow rate accuracy

variety of communication interfaces, their pumps can 2 Large dynamic range

be easily integrated into pilot plants or process environments. KNAUER pumps can also be combined with mass fl ow controllers to enable batch dosing or metering tasks.

The online measurement of the density and the direct feedback of the actual mass fl ow guarantee feeding of the highest accuracy. Mass fl ow coupling enable precise dosing of liquids independent of their properties.

Pump features



2 Compact solution for highly accurate batch dosing applications



2 Dosing accuracy is independent of liquid properties e.g. viscosity



2 Features batch control and alarm function 2 Mass and volume dosage possible Application examples



2 Metering of diisocyanates



2 Metering of 1,4-butanediol 2 Metering of hexylene glycol Mass fl ow controllers can – easily combined with KNAUER dosing pumps Operating parameters

Max. delivery pressure

40 MPa (400 bar, 5800 psi) Flow rate range

0.01 – 1000 ml/min

Max. viscosity

100 mPa·s

Liquid temperature range

20 – 60 °C (68 – 140 °F)

5



ian Maudsley

kphoto.com|Br

Photo: © istoc

Dosing of aggressive liquids Tackling dosing challenges with the right pump 6





Strong acids and bases are often required for different Pump requirements

liquid applications. KNAUER offers pumps with a choice of different pump head materials which can be 2 Chemical compatibility of wetted parts used for demanding dosing tasks. Furthermore the 2 High delivery pressure

pump design allows an easy replacement of parts 2 Easy maintainability

which come in contact with aggressive and corrosive chemicals.

This makes the KNAUER pumps ideal for metering aggressive liquids.

Pump features



2 Different pump head materials for extended chemical compatibility, including stainless steel, ceramic, and Hastelloy C



2 Optimized materials for aggressive liquids 2 Suitable for a large variety of aggressive media 2 Easy pump head maintenance to reduce downtime 2 High dosing accuracy even with fl uctuating pressure conditions



2 Large variety of accessories allows the easy integration of these pumps into dosing environment Application examples



2 Metering of ammonia/amines 2 Metering of inorganic acids (H2SO4, HNO3, and HCl)

Pump heads with optimized materials for different application tasks Operating parameters

Max. delivery pressure

40 MPa (400 bar, 5800 psi) Flow rate range

0.01 – 50 ml/min

Max. viscosity

100 mPa·s

Liquid temperature range

20 – 60 °C (68 – 140 °F)

7



Photo: ©panthermedia.net|Ramona Heim Low temperature &

liquid gas dosing

Metering liquids below 0 °C and liquid gas 8





KNAUER pumps cover a wide range of different Pump requirements

demands. Chemical compatibility and working temperatures are just two possible requirements.



2 Suitability for low liquid temperatures Pumping liquids at low temperatures may be required 2 Pump head with cooling option in fl ow chemistry or in various applications involving 2 High delivery pressure

liquefi ed gases. The wetted parts of the KNAUER

pumps are capable of working under these conditions.

With an optional pump head cooling device these pumps are perfect for dosing or feeding of liquefi ed gases or cooled liquids.

Pump features



2 Capability to meter pre-cooled liquids (down to -10 °C)



2 Pump head can be thermostated with optional pump head cooling device



2 Optimized pump head for low temperature applications



2 Suitable for liquid gases e.g. NH3 or CO2



2 Flexible fl uid connections 2 Easy integration into process control systems via analog and digital signals 2 Optimized high pressure inlet bushings for feeding of liquid gases

Application examples



2 Metering of liquid gas

AZURA pump P 4.1S



2 Metering of liquid CO2



2 Metering of liquid NH3

Operating parameters

Max. delivery pressure

40 MPa (400 bar, 5800 psi) Flow rate range

0.01 – 1000 ml/min

Max. viscosity

100 mPa·s

Liquid temperature range

-10 – 20 °C (14 – 68 °F)

9



media.net|Grondin Julien

Photo: ©panther

High temperature dosing

Handling temperatures up to 120 °C without running hot 10





Sometimes the supply of media or starting materials Pump requirements

for a chemical reaction needs to be heated to properly meet the conditions of the process. This is where 2 Pump head with heating option standard high pressure pumps can reach their limits.



2 Suitability for high liquid temperatures KNAUER dosing pumps withstand moderate liquid 2 High fl ow rate accuracy

temperatures and can be equipped with thermally decoupled pump heads even for elevated temperatures.

It is also possible to equip the pump with a pump head heating device for temperature sensitive applications.

Pump features



2 Designed for operating temperatures up to 120 °C



2 Optimized pump head for high temperature applications



2 Pump head heating device is an optional upgrade and is fast and easy to install 2 High pressure inlet bushing allows handling of pre-heated liquids

Application examples



2 Metering of polyethylene glycol 2 Metering of heavy fuel oils Thermally decoupled pump head for high operating temperatures Operating parameters

Max. delivery pressure

40 MPa (400 bar, 5800 psi) Flow rate range

0.01 – 10 ml/min

Handling temperatures up to 120 °C without running hot Max. viscosity

100 mPa·s

Liquid temperature range

60 – 120 °C (140 – 248 °F)

11



otolia.com

© Manipulateur - F

Dosing highly viscous liquids Getting exquisite results with viscous media 12





One important property of liquids is their viscosity and Pump requirements

many pumps will struggle with highly viscous media.

When bottling honey, it is typically heated moderately 2 High delivery pressure to reduce its viscosity, a principle applicable also to many 2 Reliable and easy to maintain other highly viscous liquids. If an increase of the liquid 2 Handling of high viscosity fl uids temperature is not suitable, pumps with a high engine performance will be required. KNAUER pumps with their powerful motor drives are adequate for these demanding conditions.

Pump features



2 Engineered for durability and built with high quality components and materials



2 High engine performance for highly viscous media 2 Capability to meter liquids with viscosities up to 1000 mPa·s



2 Constant fl ow and pressure operation mode 2 Wide fl ow rate range and large dynamic range 2 Additional pump head heating device can be used to reduce the viscosity of the liquid 2 Flexible control due to a range of supported interfaces (RS-232, Ethernet and analog) Application examples



2 Metering of polymers



2 Metering of polyols and isocyanates AZURA pump P 2.1L

Operating parameters

Max. delivery pressure

40 MPa (400 bar, 5800 psi) Flow rate range

0.1 – 1000 ml/min

Max. viscosity

1000 mPa·s

Liquid temperature range

20 – 60 °C (68 – 140 °F)

13





www.knauer.net/dosing

HPLC · SMB · Osmometry

KNAUER

Phone: +49 30 809727-0

Wissenschaftliche Geräte GmbH

Telefax: +49 30 8015010

Hegauer Weg 38

E-Mail: info@knauer.net

14163 Berlin, Germany

Internet: www.knauer.net

© KNAUER 2013 V7860US/2.0/04.13/4t