The high-pressure pump CP 3000 is designed for accurate dosing of corrosive liquids that do not attack stainless steel 316 (AISI), polytetrafluorethylene (PTFE), polyetheretherketone (PEEK), high molecular weight polyethylene (HDPE), titanium nitride and synthetic sapphire or ruby. The pistons of the four parallel pumping heads (in two blocks) are actuated by rods supported by ball bearings tracing eccentric cams. Motion is transmitted to the pistons by means of flat steel profiles supported by small ball-bearing guides. The pump is driven by an asynchronous motor using a teeth belt (gear reduction 3 : 1). The rotor speed is controlled by a vector frequency converter. The full pistons stroke is kept in all regimes, as the flow rate is changed only due its frequency. The suction and delivery ball valves of the CP 3000 pumps are identical, single-stage, mounted in removable cartridges. The seats are made of sapphire monocrystals, the balls (3 mm diameter) are made of ruby. Pump pistons are made of 316 stainless steel, polished and covered with titanium nitride layer to improve their hardness. Pump sealing is made of two high density polyethylene conical rings which are pressed by PEEK made insert which allows together with secondary sealing the of back flow, to secure the pump when dissolved solids are contained in mobile phase. Liquid delivered by pump heads is collected in a manifold where pressure sensor is located. Standard version (CP 3000EP) is provided with keyboard and two lines alphanumeric display for a control of the flow rate, pressure limit. Flow correction factor can be set too. Extended version CP 3000EPG allows to set and to control three phases gradient using low pressure gradient valve set (option). EP and EPG types can utilize computer control via serial line (option). Simple version CP3000 has only the start-stop button, LED displays the flowrate and a knob to set it on the front panel. The combined power switch/over-current circuit breaker is mounted at the rear panel of both types.   The high-pressure pump CP 1500 has the same design as CP 3000 type, but only one block with two piston heads is employed. Standard version CP 1500EP is provided with display and keybord. CP 1500EPG with gradient master is available. Basic CP 1500 has only LED diplay to show flow rate and a knob to set it. All CP 1500 versions can be delivered also with 10 mm O.D. pistons (CP 1500R type) for half flow rate and higher presure. CP 1500M is delivered to be use as constant flow metering pump for different applications. It consist of mechanical block, gearbox and motor.   The pumps of the CP 200 series are two piston heads pumps for smaller, laboratory type preparative chromatographs, with pistons of 7 mm diameter and 7,5mm stroke. Ball valves are made of sapphire and ruby monocrystals. The liquid is incontact with stainless steel class 316(AISI), titanium nitride (TiN), polytetrafluoroethylene(PTFE), polyetheretherketone(PEEK), high molecular weight polyethylene (HDPE), synthetic sapphire and ruby. The rod system is similar to the CP 1500/3000 series. A DC motor with accurate optoelectronic control actuates the piston rods through a two-steps gearbox. The pump is equipped with flowrate calibrationl and an output pressure mea-suring device. It is controlled via double-line alphanumerical display and a keyboard. The installed pressure gauge enables a limit pressure to be set. In the version CP 200G gradient controller is installed to produce three phase low pressure gradient. The pump is mounted in a metal box; panels have an epoxide, chemically resistant coating. External control using seriál line RS 232 is available for all CP 200 types on special request.

Specification

CP200 1 -200 ml/min, 2100 psi	Pump, double-head, piston, step motor, flowrate 1 to 200 ml/min, maximum pressure 2100 PSI, pressure measurement, limit, processor, keyboard, 2 lines alphanumeric display, 3 phase low pressure gradient programmer (valves not included)
CP500 50 - 500 ml/min, 3500 psi	Pump double-head, piston, flow rate 50–500 ml/min, maximum pressure 3500 PSI, piston rods, saphire ball valves, stainless steel heads, motor regulation by frequency changer, flow rate LED display, external start stop control
CP700 700ml/min 3500 psi	Pump double-head, piston, flow rate 700 ml/min, maximum pressure 3500 PSI, piston rods, saphire ball valves, stainless steel heads, no regulation, without box
CP1500 130-1500ml/min, 2100 psi,	Pump double-head, piston, flow rate 130 – 1500 ml/min, maximum pressure 2100 PSI, piston rods, saphire ball valves, stainless steel heads, pressure measurement and limit, motor regulation by frequency changer, processor, keyboard, 2 lines alphanumeric display, 3 phase low pressure gradient programmer (valves not included)
CP3000 260-3000ml/min, 2100 psi,	Pump four heads, piston, pulsless, flow rate 260 – 3000 ml/min, maximum pressure 2100 PSI, piston rods, saphire ball valves, stainless steel heads, pressure measurement and limit, motor regulation by frequency changer, processor, keyboard, 2 lines alphanumeric display, 3 phase low pressure gradient programmer (valves not included)