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PRECIFLOW, MULTIFLOW, HIFLOW, MAXIFLOW and MEGAFLOW peristaltic pumps

were developed as the result of twenty years of laboratory experience and involved the systematic elimination of the imperfections found in other peristaltic pumps on the market. The result is a practical, precise and reliable peristaltic pump, which is the most compact in its class.

• Flow rates from 0.01 to 60000 ml/hr
• Large digital speed setting range
• Flow rate programming
• Extensive remote controls
• 5 years warranty*
• Greatly extended tubing life with decreased pulsation
• Low voltage plug-in power supply for maximum safety

The result is a practical, precise and reliable pump, which is the most compact in its class:

Peristaltic pumps LAMBDA PRECIFLOW, MULTIFLOW, HIFLOW, MAXIFLOW and MEGAFLOW
• Flow rates from 0.01 to 10000 ml/hour
• Digital speed setting from 0 to 999
• New motor technology
• Extensive remote controls
• Greatly extended tubing life and decreased pulsation
• Flow rate programming (up to 99 steps)
• By programming zero flow rates the pump can be switched on off without using a timer
• Very economic in use while using low cost tubing without stoppers
• Most compact pump of its class on the market
• Access to reaction kinetics by using the LAMBDA pump-flow INTEGRATOR
• Low voltage plug-in power supply for maximum safety
• RS-485 or RS-232 interface (optional)
• Pump control software PNet (optional)
The special mechanics of LAMBDA peristaltic pumps has been developed because no pump could be used for continuous fermentation lasting up to eight weeks.

The most frequent problems of traditional peristaltic pumps are:
• Aspiration of the tubing by the mechanics
• Rupture of the tubing and leaking of the solution
• Flow rate decrease over time
• When a continuous process is interrupted a lot of time and money are lost

During the development of the new LAMBDA peristaltic pump mechanics all aspects of existing peristaltic pumps have been analyzed and finally an efficient solution has been found.

What makes these new pumps so efficient?

• Rollers of small diameter apply a high strain onto the tubing and push the tubing in the direction of the sense of rotation. Therefore, the tubing has to be fitted with stoppers. We use rollers of very large diameter – this leads to the elimination of such strains and prevents tubing motion. A larger portion of tubing is compressed with better pressure distribution. The elasticity of the tubing is protected.
LAMBDA peristaltic pump head for reduced pulsation and long tubing life
• Instead of rollers we use special plastic ball bearings with glass beads. The gliding of such rollers requires only a minimal force and the corrosion resistance in the case of spill is excellent.

• A special off-centre lever using a spring of non-corrosive material applies the compression force on the tubing softly and gradually.
• The final pressure of the liquid is reduced by the spring to 0.1–0.2 MPa (according to the tubing used). The pressure does not increase even when the line is blocked.
• The pump head is large and has two centers of asymmetry, which reduces pulsation several times. The head is made of hard, chemically stabilized material
• The stepping motor or BLDC motor, driven by quartz-controlled electronics, assures a high precision of the flow rate. The ratio of speed control is 1:1000.
    [The peristaltic pump head and the rollers are of large diameter. The asymmetric head design and the spring-loaded off-center levers move the rollers gradually and softly, thus increasing tubing life and reducing pulsations.]
• Several possibilities of remote control.
• The unique flow integrator LAMBDA INTEGRATOR makes the LAMBDA peristaltic pumps excellent for the use in automatically controlled systems e.g. fermentation, bio cultures, chemical synthesis, fraction collection and many more.
• The laboratory space is very expensive, therefore we have made our peristaltic pumps as compact as possible (all have just 1 l of volume). They are several times smaller than other peristaltic pumps on the market and therefore so handy in use.

Benefits of great importance for your laboratory
• Since the lateral forces on the tubing have been eliminated, no stoppers are required. Even without any fixation the tubing will not move at all in and out of the head.
• Since the tubing compression is kept in the range of elasticity of the tubing the tubing life increases considerably and flow rates remain constant.
• Low cost tubing can be used with good results. The tubing economy is very important, e.g. the LAMBDA PRECIFLOW peristaltic pump will be paid back after consumption of about 80 m of tubing.

All LAMBDA peristaltic pumps have the same following characteristics:
• Digital speed control in the range 0:1000
• Analog remote control ON/OFF and full range speed control (0–10 V)
• RS 485 or RS 232 interface (optional)
• Very small dimensions: 10.5 (W) × 9.5 (H) × 10.5 (D) cm
• Very quiet operation
• Plug in switching power supply for mains 90–240 V/AC, 50–60 Hz, output 12 V/DC
• Long life even with low cost tubing without stoppers
• Safety conform to CE and IEC 1010/1

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