Compact pump without pressure sensor, with 50 ml/min stainless steel pump head

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Article No.: APG90FA
Articlename: AZURA P 2.1S

Compact pump without pressure sensor, with 50 ml/min stainless steel pump head

For HPLC and dosing applications

With its small footprint, the compact dual piston pump AZURA P2.1S can be used for a wide range of laboratory tasks. A pressure rating of up to 400 bar and chemical resistance to a wide range of eluents make it the perfect choice for LC and dosing applications. Pump heads with maximum flow rates of 10 and 50 ml/min are available.


Moreover, its exchangeable pump head allows adaptation of the pump for delivery of aggressive media and bioinert applications. The pump head can be heated or cooled with optional accessories.

Technical Data

General information

Max. flow rate 50 ml/min
Flow rate range 0.01−50 ml/min
Flow rate increment 0.01
Pressure range
Maximum delivery pressure [psi] 2180 psi
Maximum delivery pressure [MPa] 15 MPa
Maximum delivery pressure [bar] 150 bar
Pump head materials Stainless Steel
Maximum viscosity 100 cp
Liquid temperature range 4−60 °C (39.2−140 °F)
Gradient Isocratic
Leak management No
Wetted materials aluminum oxide (Al2O3), FEP, FKM, GFP (graphite fiber reinforced PTFE), PEEK, ruby, sapphire, stainless steel, Tefzel® (ETFC), Zirconium oxide
Pump features Piston seal wash, Standalone control and programming, Wetted parts fully exchangeable by user

Detailed information

Best working conditions 1.0−40.0 ml/min
Continuous working conditions 3−25 ml/min
Flow rate accuracy ± 5 %
Flow rate accuracy conditions measured at 5-50% of flow range using ethanol/water 10:90
Flow rate precision < 0.5% RSD
Flow rate precision conditions measured at 1 / 5 ml/min using ethanol/water 10:90
Pump type Ultra-compact high pressure pump
Pulsation compensation No
Active piston seal wash No
Piston seal washing Yes
System protection Imin and Imax adjustable
Pump Outlet thread Female UNF 10-32 (coned)
Pump head inlet (standard) 1/4"-28 UNF (flat bottom)
Pump head outlet (standard) 10−32 UNF (coned)


Interfaces display
Control RS-232; analog; button on device
Analog inputs 0−10V


Power supply 100−240 V; 50−60 Hz
Dimensions 121 x 129 x 220 mm
Weight 2.3 kg
Leak sensor No
Ambient conditions temperature range: 10–40 °C; 50–104 °F
air humidity: below 90 % humidity (non condensing)

Documents and more information

Certified Quality 

KNAUER is known for the quality of its products and has been certified several times. We produce high-tech laboratory instruments for research, routine analysis and production.
See all Quality certificates

In addition, we have extended documentation about all our products, including CE Declarations of Conformity.
See all CE Declarations of conformity

Innovation and quality - since 1962. Made in Germany.

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Technical data or prices are subject to change without notice. Prices may vary by country and do not include taxes, customs duties or delivery. All trademarks are the property of their respective owners.Our general terms and conditions apply: www.knauer.net/terms

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