Pneumatic high-pressure pump

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Article No.: A50781
Articlename: Smartline Pneumatic Pump 1950

Pneumatic high-pressure pump

with 1000 ml pump head (stainless steel) for max. 50 bar

The Smartline Pneumatic Pump 1950, powered by compressed air, has been designed for solvent delivery in process chemistry, column packing or preparative chromatography. Application areas:

  • packing of HPLC columns at pressures up to 160 bar
  • delivery of supercritical fluids such as CO2 (with mounted pump head cooling device)
  • metering against constant pressure

The delivery flow rate depends on the compressed air supply and the back pressure of the column or system. Maximum delivery flow rate can be reached at minimum liquid pressure (below 1 bar). The minimum liquid flow rate (approx. 5 ml/min) is achieved at highest back pressure. The Smartline Pneumatic Pump 1950 (A50781) has a 1000 ml stainless steel pump head and can be operated at maximal 160 bar back pressure for solvent delivery.

Technical Data

Solvent delivery

Pump type pneumatic pump with 1000 ml pump head
Delivery system powered by pressurized air
Piston seal washing available
Pump head 1000 ml
Pump head materials Stainless Steel
Max. flow rate 2000 ml/min at minimum back pressure
Maximum delivery pressure 50 bar (5 MPa)
Maximum allowed air pressure 7
Pneumatic transformation ratio 1:23
Required compressed air pressure minimum 1 bar, maximum* 7 bar
Wetted materials stainless steel 1.4404, stainless steel 1.4401, graphite fiber reinforced PTFE, FPM, PEEK, POM/PTFE, aluminum oxide (Al²O³)

Technical parameters

Ambient conditions temperature range: 4–40 °C; 39.2–104 °F air humidity: below 90 % humidity (non condensing)


Dimensions 220 x 185 x 340 mm (W x H x D)
Weight 10.2 kg

Degasser module

Note * Using the 100 ml pump head, the external air pressure should not exceed 4.2 bar in order not to damage the pump head or pump mechanics.

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 for 59 years.
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In addition, we have extended documentation about all our products, including CE Declarations of Conformity.
See all CE Declarations of conformity

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