Masterflex® L/S® Compact Variable-Speed Drives, Avantor®
Make low-flow pumping easy!
- Flow rate 1.8 to 220 ml/min with L/S tubing—flow rate depends on drive rpm, pump head, and tubing size
- Pump head accepts continuous lengths of tubing for clean flow paths
- Dual-channel model delivers synchronous flow from two separate channels; single-channel model delivers highest flow rate
- Automatic tubing retention makes tube loading quick and easy
- Separate single-turn speed control and forward/off/reverse switch—maintain speed setting when turning pump on or off
- Remote start/stop via contact closure on back of pump
These easy-to-use complete pumps offer a wide occlusion angle, which prevents fluid backflow up to the rated pressure of the tubing. Prime or flush tubing quickly by depressing the MAX button. Self-lubricating thermoplastic polyester rollers are low friction and long wearing for smooth operation and long life.
This compact, stackable pump features a durable steel housing with chip-resistant epoxy-based paint. Wide occlusion angle prevents fluid backflow up to the rated pressure of the tubing. MAX button runs motor at full speed to rapidly prime or flush tubing. Self-lubricating thermoplastic polyester (Ertalyte®TX) rollers are low friction and long wearing for smooth operation and long life.
Note:Dual-channel model must have same size tubing loaded in both channels to ensure tubing retention.
: Includes L/S® Miniflex® pump head and dual-voltage (115/230 VAC) benchtop power supply with IEC320/CEE22 socket. Pump is shipped with cord/plug assembly specific to country of destination. Tubing is not included.
- Maximum Flow Rate:220 ml/min
- Power:90 - 260 VAC; 50/60 Hz
- Description:L/S® Analog Compact Drive with Single-Channel Miniflex® Pump Head; 115/230 VAC
- Height:114 mm (4.5")
- Length:216 mm (8.5")
- Max. RPM:200 rpm
- Pump Head:77220-00 (L/S® MiniFlex® head)
- Width:133 mm (5.25")
- Housing material:Painted steel
- Plug type:DK
- Min. flow rate per channel:1.8 ml/min
- Open-head sensor:No
- Cloud connected:No
- Warranty:2 years
- No. of channels:1
- Remote I/O:Start/stop via contact closure
- Max. flow rate per channel:220 ml/min
- Reversible motor:Yes
- Control type:Analog
- Anti-drip:No
- Digital dispensing:No
- No. of rollers:3
- Cat. No.:MFLX77240-20-DK
- Accuracy:±5%
- Drive IP rating:IP 22
- Duty cycle:Continuous
- Pump series:L/S
- Voltage:90 - 260 VAC
- Model:77240-20
- Frequency:50/60 Hz
- Drive:Analog Miniflex
- Tubing sizes accepted:L/S® 13, 14, 16, 25
- Washdown capable:No
- Min. RPM:35 rpm
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Sinon, vous recevrez des recommandations génériques.



