Novosibirsk, Akademgorodok
Musy Dzhalilya, 23
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Equipment for research of core,
reservoir fluids and fracturing materials
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LN series laboratory plunger pumps

Laboratory plunger pumps of the LN series are designed to create a continuous fluid flow without pressure pulsations. The plunger pump operation principle based on fluid displacement from the cylinder cavity due to rod (plunger) movement from its lowest position to its highest.

The pump consists of two independent pressure cylinders, equipped with automatic valves for smooth switching from one cylinder to another. The pump parts in contact with the liquid are made of corrosion-resistant materials (stainless steel, titanium). Pumps can be designed heat-resistant for operating at temperatures up to 150 ° C.

The pump is controlled by a touch screen located on the front panel. The pump controller can be connected to PC by provided software. The pump software allows user to work both in twin and in separate cylinder operating modes: each pump cylinder can operate in its own independent mode.

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Basic modes of the pump operation
  • Constant pressure automatic maintenance
  • Constant flow automatic maintenance with pumped volume accurate calculation
  • Exact liquids dosage
  • Automatic backpressure mode: maintaining pressure by fluid withdrawal
  • Programmable cycles with gradual change of given parameter: pressure / flow rate change by a set value in a definite time
  • Manual device control
Pump models technical specifications
Specifications Model
LN-100 LN-400 LN-700 LN-400-200 LN-700-100 LN-1400-50 LN-400-1000
Versions Double plunger Double plunger Double plunger Single / Double plunger Single / Double plunger Single / Double plunger Single plunger
Max. pressure, MPa 10 40 70 40 70 140 40
Min. flow rate,  ml / min 0,001 0,0001 0,0001 0,001 0,001 0,001 0,1
Max. flow rate,  ml / min 100 25 15 50 25 15 500
Volume supply resolution, nl 32 8,2 5,2 44,8 23,2 8,2 100
Cylinder volume, ml 100 30 20 200 100 50 1050
Flow rate accuracy,  % of the current value 0,5 0,5 0,5 0,5 0,5 0,5 0,5
Pressure maintenance accuracy, % of VPI 0,5 0,5 0,5 0,5 0,5 0,5 0,5