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.

Request product cost

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
Specifications	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