D-21F Fixed-Flow Peristaltic Pump 6 Speeds 2-Roller Head

Laboratory peristaltic pump with fixed flow across six working ranges. Dispensed volume varies with the internal diameter of the tubing fitted — flow rate adjusted without additional electronics. Head with polycarbonate rotor and two rollers: straightforward design, easy to clean and maintain.

Key features

• Available flow rates: 0.3 / 0.8 / 3 / 12 / 17 / 23 ml/min (tubing-dependent)
• Pump head: Polycarbonate rotor, 2 rollers
• Timer: Integrated cyclic timer
• Remote control: Built-in output
• Switch: Main switch on unit body
• Supply: 230V 50/60Hz

Installation and maintenance

Tubing removes from the head tool-free — no clips, no screws. Changeover in seconds for sterilisation or wear replacement. Supplied with tubing and footswitch connector. Footswitch not included; ordered separately.

Timer-free version of the D-21FT series. If the timer is not required, this is the unit to specify.

Technical specifications

• Dimensions: 165 x 195 x 95 mm (W x D x H)
• Weight: 1.8 kg
• Voltage: 230V 50/60Hz
• Head material: Polycarbonate
• Number of rollers: 2

Typical applications

Repetitive reagent dosing, culture media transfer, chromatography column feeding and any process requiring constant flow without liquid contact with the pump mechanism. The peristaltic principle ensures fluid contacts only the inner tubing wall.