Overview
The Watson-Marlow 120U/DM3 and 120S/DM3 pumps comprise a 400DM3 three-channel pumphead powered by a 120 variable speed or automatic drive. The pumphead accepts 0.8mm wall, three-bridge manifold tubing in sizes from 0.13 to 2.79 mm internal diameter. The pump gives flow rates up to 36 ml/min.
120 pumps are compact, saving valuable space in cleanroom, LAF and biosafety cabinet installations.
120U/DM3: 0.1-100 rpm in 0.1 rpm increments. Manual remote control or automatic control via 4-20mA or 0-10V inputs. Speed scrolling, priming and keypad lock.
120S/DM3: Manual control, 1-100 rpm in 1 rpm increments. Speed scrolling, priming and keypad lock.
Flow rates 0.0001 to 36 ml/min at 2 bar (30 psi)
- Compact footprint requires minimal benchtop space
- Superior speed control up to 1,000:1, ±1% set speed accuracy, repeatable flow
- 400DM3 three-channel pumphead accepts three-bridge manifold tubing only
- Efficient and intuitive to use, requiring minimal key presses
- Smooth, wipedown case with no sharp edges to tear gloves and no bug traps. IP31 ingress protection
- Maintenance-free, brushless DC motor
- Three year warranty
Fermentation The 120 is the perfect pump for maximizing yield in fermentation and cell culture applications. Ultra-compact and stackable for multiple feeds such as pH control, antifoam, nutrient and buffer addition, the 120 offers the ideal combination of size and technology to optimise your process.
Single-use systems The new 120 pump is perfectly suited to single-use systems where no contamination can be accepted. Error-free tube change takes only seconds.
Process validation The biopharm process requires accurate and repeatable pumping which is easy to validate. With an exceptional 1,000:1 speed range, the 120 delivers the flexibility and purity so vital to drug trials. A keypad lock secures your pumping parameters for constant and repeatable performance.
Pumphead
400DM3 three-channel pumphead
The three-channel 400DM3 pumphead uses three-bridge manifold tubing. Ideal for ultra-low-flow metering. Available for 120S and 120U drives.
- Flow rates from 0.0001 to 36 ml/min per channel
- Precision-machined four roller aluminium rotor
- Smooth, precise flow
114DV flip-top four roller pumphead
The 114DV single-channel pumphead assures trouble-free continuous tube loading in seconds, high accuracy and repeatable flow. It accepts 1.6mm wall tubing in bores sizes 0.5mm to 4.8mm.
- Flow rates from 0.002 to 170 ml/min at 2bar (30psi)
- Single-channel pumphead with four rollers for smooth flow
- Recommended for continuous duty
- Models with occlusion settings for standard
102R single-channel two roller pumphead
The 102R single-channel pumphead with two-roller rotor is suitable for continuous silicone tubing. It accepts tubing in bore sizes 0.5mm to 4.8mm.
- Flow rates from 0.003 to 54 ml/min at 2bar (30psi)
- Single-channel two roller pumphead
- Sprung rotor to maximise tube life
400DM2 twin-channel pumphead
The twin-channel 400DM2 pumphead uses three-bridge manifold tubing. Ideal for ultra-low-flow metering. Available for 120S and 120U drives.
- Flow rates from 0.0001 to 36 ml/min per channel
- Precision-machined four roller aluminium rotor
- Smooth, precise flow
400D1 single-channel pumphead
The single-channel 400D1 pumphead accepts 1.6mm-wall tubing from 0.5mm to 4.0mm.
This metering pumphead is familiar to users replacing older 101 and 400 series pumps with the 120. Suitable for 120S and 120U drives.
- Flow rates from 0.001 to 120 ml/min
- Precision-machined four roller aluminium rotor
- Quick-release sprung tube clamps
- Smooth, precise flow
Drives
120U offers 0.1 to 100rpm manual remote control of the pump in 0.1rpm increments or automatic control in 0.1rpm increments via 4-20mA or 0-10V inputs.
120S offers 1-100rpm operation in 1rpm increments