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Pumps overview

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Pumps overview
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Seals for pumps

The ECOM company offers wide range of pumps suitable for analytical, preparative HPLC and FLASH chromatography applications.

Theta and Iota series are suitable to be built into compact chromatography systems. It is possible to produce any other unit as built-in version after agreement.

All units may be supplied as basic OEM versions. It is possible to change design of these versions to customer needs.

All pumps can be controlled via RS232. Easily can be controlled from PC by our SW ECOMAC. Clarity chromatography station supports all of our pumps.

 

STAND-ALONE UNITS IN CASE POWERED BY 90-264 V AC

Name F [ml/min] Max.press
[MPa / PSI]
D Pumping system Note
Series 2000 HPLC pump, isocratic / gradient with Gradient Box, Ethernet (LAN)
  ECP2010 0.01-10.00 40 / 5800 1/8" 2x serial Analytical; Gradient Box ECB2004
  ECP2050 0.1-50 30 / 4351 3/8" 2x parallel Preparative; Gradient Box ECB2005
  ECP2100 1-100 30 / 4351 3/8" 2x parallel Preparative; Gradient Box ECB2005
  ECP2300 1-300 15 / 2176 3/8" 2x parallel Preparative; Gradient Box ECB2005
Kappa series isocratic, single piston, pulsating, 40 MPa up to 2 ml/min, 2-10 ml/min 20 MPa
  Kappa 10 0.01-10 40 (20)/ 5800 (2900) 1/8" 1x pulsating Without pressure sensor
  Kappa 10PP 0.01-10 40 (20)/ 5800 (2900) 1/8" 1x pulsating With pressure sensor

BUILT-IN UNITS IN CHASSIS POWERED BY 24 - 36 V DC

Name F [ml/min] Max.press
[MPa / PSI]
D Pumping system Note
Theta series isocratic, built-in, without pressure sensor
  Theta 50 0.1-50 30 / 4351 3/8" 2x parallel Preparative
  Theta 100 1-100 15 / 2176 3/8" 2x parallel Preparative
  Theta 300 1-300 7.5 / 1015 3/8" 2x parallel Preparative
Iota series isocratic, built-in, with pressure sensor
  Iota 50 0.1-50 30 / 4351 3/8" 2x parallel Preparative
  Iota 100 1-100 15 / 2176 3/8" 2x parallel Preparative
  Iota 300 1-300 7.5 / 1015 3/8" 2x parallel Preparative

F - range of possible flow-rates

D - pistons diameter

Seals

All pumps are supplied with GFP seals as default. Pumps can be equipped with UHMW-PE seals on customer demand.

UHMW-PE seal (yellow)

This material is based on ultra-high molecular weight polyethylene, and is compounded with other proprietary polymers to provide better lubricity and solvent resistance than pure UHMW-PE. This material is a self-lubricating compound that exhibits excellent wear characteristics, low coefficient of friction, and good resistance to cold-flow (extrusion). It is often used for "dry" bearings and seals, where lubrication by oil or other fluids is not permitted. It is resistant to most HPLC solvents except for methylene chloride and Toluene. UHMW-PE seals should only be used intermittently when using these solvents in 100 % concentration.

GFP seal (black) Graphite Fiber-Reinforced Polytetravluorethylene

This material is Teflon (PTFE) with filler added to it for the purpose of increasing resistance to cold flow and improving wear characteristics. It is absolutely inert to any hplc solvent, but does not have the high resistance to wear and cold-flow that the UHMWPE compounds have. It is more flexible that UHMW-PE, and therefore will conform better to pistons that are not aligned well, or which are worn flat. The color of our formulation is black. There are dozens of Teflon compounds, many of which are black, but they are not the all same. Some offer an extremely low coefficient of friction but wear rapidly, while others last longer but can rapidly wear the sapphire piston (such as ceramic filled Teflon). The selection of the Teflon compound that we use is based on thousands of hours of testing of compounds from several different suppliers, and we are confident that it offers the best performance.


 
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