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Products
The RAT 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.
| 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 | 15 / 2176 | 3/8" | 2x parallel | Preparative; Gradient Box ECB2005 |
| ECP2300 | 1-300 | 7.5 / 1015 | 3/8" | 2x parallel | Preparative; Gradient Box ECB2005 |
| Kappa series | isocratic, single piston, pulsating, 40 MPa up to 2 ml/min., column washing | ||||
| Kappa 10 | 0.01-10 | 40 / 5800 | 1/8" | 1x pulsating | from 2ml/min 20MPa / 2900PSI |
| Kappa 10PP | 0.01-10 | 40 / 5800 | 1/8" | 1x pulsating | pressure sensor, from 2ml/min 20MPa / 2900PSI |
| 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
All pumps are supplied with GFP seals as default. Pumps can be equipped with UHMW-PE seals on customer demand.
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.
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.
