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Directive 94/9/EC, commonly known as the ATEX directive, carries obligations to the person who places equipment on the market in EU territory for use in potentially explosive environments. All of Watson-Marlow's ATEX pumps have been rated as Group II, Category 2 equipment, intended for use in gas-based environments only.
ATEX pumps are available in 520, 620 and 720 ranges.
501DF/RLA | 501DF/RL2A |
- Fixed speed: 62 rpm,
223 rpm or 281 rpm
- 501RLA pumphead: pressures to 2 bar, 1.6mm wall continuous tubing in
seven bore sizes
- ATEX II 2G (Zone 1) 0.18kW 3-phase 50Hz industrial drive
- Flow rates from 0.5 ml/min
to 2910 ml/min
- IP55 protection, 24-hour
duty rated
- Two-year full warranty
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- As 501DF/RLA
- 501RL2A pumphead: for higher pressures using STA-PURE or CHEM-SURE, 2.4mm wall continuous tubing in seven bore sizes
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501DV/RLA | |
- Variable speed ball drive variator: 7 rpm – 250 rpm
- ATEX II 2G (Zone 1) 0.25kW 6-pole 230/400V 3-phase 50Hz TEFC electric motor
- 501RLA pumphead: pressures to 2 bar, 1.6mm wall continuous tubing in seven bore sizes (to 1 bar in 6.4mm and 8.0mm bores)
- Flow rates from 2.6 ml/min to 2800 ml/min
- IP55 protection, 24-hour-duty rated
- Two-year full warranty
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621DV/RA | 621DV/REA |
- Fixed speed: 77 rpm or 251 rpm
- ATEX II 2G 0.37kW 3-phase 50Hz industrial motor/gearbox
- Flow rates from 0.1 litre/min to 18.1 litre/min
- Pressures to 2 bar
- 621DF/RA twin-roller pumps for continuous tubing
- 621DF/REA twin-roller pumps for LoadSure elements
- For pressures to 4 bar, use a 621REA pumphead with a Marprene, Bioprene or STA-PURE element, or a 620RA pumphead with STA-PURE tubing
- IP55 protection, 24-hour duty-rated
- Two-year warranty
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- Variable speed ball drive variator: 7 rpm – 250 rpm
- ATEX II 2G (Zone 1) 0.25kW 6-pole 230/400V 3-phase 50Hz TEFC electric motor
- Pressures to 2 bar, 3.2mm wall continuous tubing in four bore sizes
- Flow rates from 2.6 litre/min to 18 litre/min
- IP55 protection, 24-hour-duty rated
- Two-year full warranty
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621DF/RA | |
- As 621DV/RA
- Pressures to 2 bar, LoadSure tubing elements in four bore sizes
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701DFB/RA | 701DFB/REA |
- Fixed speed: 112 rpm or 360 rpm
- Three-phase ATEX II 2G (Zone 1) motor
- Continuous tubing in five sizes and eight materials
- Flow rates to 2,000 litre/hour
- 24-hour-duty rated
- Two-year warranty
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- As 701DFB/RA
- Tubing elements in four sizes and two materials
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701DFB/RXA and REXA | |
- As 701DFB/RA
- Extension pumpheads for 701DFB drive
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