PUMPS

Pumps LCP 4000

Well-tried LCP 4000 series of double-acting pulseless pumps include:

• LCP 4000.11: Analytical pump with flow-rates ranging from 0.01 to 9.9 ml/min. (max.pressure 35 MPa)
• LCP 4000.2  : Preparative pump with flow-rates ranging from 1 to 99 ml/min (max.pressure15 MPa)
• LCP 4000.3  : Pump for gel permeation chromatography  with flow-rates ranging from 0,1 to 9,9 ml/min (max.pressure 35 MPa)
• LCP 4000.4  : Non-metal (PEEK) modification of analytical pump with flow-rates ranging from  0,01 to 9,9 ml/min (max. pressure20 MPa)

LCP 4000.11 Analytical Pump
 

LCP 4000.11 is a double-acting pulseless pump with flow-rates ranging from 0.01 to 9.9 ml/min.  Instantaneous pressure is displayed at a numerical display. A maximum operation pressure of 35 MPa.  The pump is equipped with electronic fuses which stop the flow when preset either maximum or minimum operating pressure limits are exceeded.

When necessary it is possible to use back rinse of pistons (e.g. after using buffered mobile phases). Sapphire valves in a PEEK housing facilitate cleaning.

LCP 4000.1 - Specification:

Ordering No. 0026

LCP 4000.2 Preparative Pump

is a more powerful modification of a LCP 4000.11 pump for preparative applications; flow-rate range is extended to 1 - 99 ml/min, a maximum operating pressure of 15 MPa.

LCP 4000.2 - Specification:

Ordering No. 0030

LCP 4000.4 Analytical Pump, non-metal

is designed for analyses where non-metal environment is required. It is a non-metal modification of a LCP 4000.11 pump. The materials used are PTFE, VESPEL and PEEK. A maximum pressure is limited to 20 MPa.

LCP 4000.4 - Specification:

Ordering No. 0040

GP 5 Gradient Programmer
 

Gradient Programmer GP 5 in combination with a LCP 4000.11 analytical pump and its analytical modifications, is designed to form a low pressure gradient (up to ternary) prior to solvents enter a pump. The Gradient Programmer may be controlled either automatically by means of a preset programme or manually from the keyboard.  The individual programmes may be stored in a memory and the start initiated either from keyboard or with a switch on an injection valve.

GP 5 - Specification:

Ordering No. 5001a

Pumps LCP 4100

A new pumps resulting from well-tried LCP 4000 series of double-acting pulseless pumps with a flow rate 0.01 - 10 ml/min and pressure limit of 35 MPa. Pumps are built-in a new case and they are controled by proccesor.

LCP 4100 series of double-acting pulseless pumps include:

• Gradient pump LCP 4100.2
• Isocratic pump LCP 4100.1
• Gradient non-metal pump  LCP 4100.2

LCP 4100.2 Gradient Pump
 

LCP 4100.2 is a processor type double-acting pulseless pump making possible to form up to ternary low pressure gradients of mobile phases while maintaining the flow-rate constant.  The programmes controlling the changes in gradient composition during analysis may be stored in a memory.

While in an isocratic mode, it is possible to change flow-rate in steps during an analysis using a programme from 0.01 to 9.99 ml/min. A maximum operating pressure is 35 MPa. The start may be initiated either from keyboard or with a switch on an injection valve.

LCP 4100.2 - Specification:

Ordering No. 0070

LCP 4100.1 Isocratic Pump

is a version of a LCP 4100.2 pump without a gradient feature. It can be operated both at constant flow-rate and pressure. It is possible to change flow-rate (or pressure) in steps during an analysis by a programme. The individual programmes may be stored in a memory. The pump may be up-dated to a LCP 4100.2 gradient pump.

LCP 4100.1 - Specification:

Ordering No. 0060

LCP 4100.3 Gradient Pump
 

LCP 4100.3 is a non-metal version of a proccesor type double-acting pulseless pump model LCP 4100.2, enabling to from up to ternary low pressure gradient of mobile phases while keeping the flow rate constant.  Programmes controlling the changes in gradient composition during an analysis may be stored in the memory.

When in the isocratics modes it is possible to change flow-rate in the steps during the analysis 0.01 - 9.99 ml/min. A maximum operating pressure is 20 MPa. The start may be initiated either from the keypad or using a switch located on an injection valve.

LCP 4100.3 - Specification:

Ordering No. 0071

Pumps LCP 4020

New series of double-acting pulseless pumps built-in a new case.

LCP 4020.1 Analytical Pump
 

Analytical Pump LCP 4020.1 is a new pump resulting from well-tried LCP 4000 series of double-acting pulseless pumps with a flow rate 0.01 - 10 ml/min and pressure limit of 35 MPa.

The pump is built-in a new case with a number of new features as follows :

• Control is performed by means of a membrane keypad
• Pressure range selector and pressure protection of 1:10 (for gel permeation chromatography)
• Continuos flow-rate setting (using a rotational potentiometer )

(LCP 4020.11 is a non-metal version of this pump)

Moreover all, units are equipped with the following:

• Indicator of the current pressure
• Electronic safeguard of a maximum operating pressure
• Piston seals and ball valves provided by well-known companies
• Back-flushing of pistons
• Electronic pulse compensation
• External flow-rate control (by voltage)

LCP 4020.1 - Specification:

Ordering No. 0045

LCP 4020.3 - Analytical Pump
 

Analytical Pump LCP 4020.2 is a new type of pump with a new concept of pumping block with main and auxiliary pump cylinders connected in series. Further, when compared with the previous types, it also has a smaller diameter of the saphire piston (1/8") and seals from Bal-Seal company.

LCP 4020.3 0.01 - 10 ml/ min, pressure 35 MPa. Ordering No. 0053

The pump is built in a new case with a number of new features as follows:

• Control is performed by means of a membrane pumps
• Pressure range selector and pressure protection of 1:10 (for gel permeation chromatography)
• Continuos flow-rate setting (using rotational potentiometer)

(LCP 4020.31is a non-metal version of this pump)

Moreover, all units are equipped with the following:

• Indicator of current pressure
• Electronic safeguard of maximum operating pressure
• Piston seals and ball valves provided by well-known companies
• Back-flushing of pistons
• Electronic pulse compensation

LCP 4020.3 - Specification:

Pulse damper THESSALONIKI
 

Pulse damper Thesaloniki enables dramatic reduction of residual pulsation caused by pulse pump.   Low internal volume - max 1,2 ml  High pressure resistance up to 35 MPa  A non-metal version (PTFE and PPS)

Single piston pump  -  flow 1 ml/min (ethanol)  without pulse dumper:

Single piston pump  -  flow 1 ml/min (ethanol)  with pulse dumper: