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- Cole Parmer WS-200-4 Stuart Water Still 4L/hr
Cole Parmer WS-200-4 Stuart Water Still 4L/hr
- £1,883.95 excl. VAT
- £2,260.74incl. VAT
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Print PageCole-Parmer WS-200-4 Stuart water still for 4L/hr single distilled water. This all-glass water still with silica-sheathed heaters and high-efficiency condenser ensures top distillate purity at an economical price. A reservoir level control feature automatically turns off the heater when the reservoir is full preventing any overflow. Two independent safety thermostats, mounted in the condenser and boiler, prevent overheating in the event the water supply is interrupted.
Easily and safely change the hoses without the risk of breaking any glassware using the screw thread connections. Built-in acid addition funnel and drain stopcock allow for easy descaling without dismantling the glassware. Use the still on a benchtop or wall mount using the two predrilled screw holes in the stand.
Features:
- Two independent safety thermostats prevent overheating
- Heating element shuts down when reservoir is full
Includes:
- Reservoir level control
- Predrilled support stand
- Hose kit
- Power cord with stripped ends
*Effective May 2022, the Stuart Water Still Model number D4000 has now been rebranded Cole-Parmer under Model number of WS-200-4. All the same great features and specifications, just with a new and improved look.
| Capacity | 4L/hr |
| Min Inlet Pressure (PSI) | 3 |
| Max Operating Pressure (PSI) | 100 |
| Min Inlet Pressure (bar) | 0.2 |
| Max Operating Pressure (bar) | 6.9 |
| Power (VAC) | 240 |
| Height (cm) | 41 |
| Depth (cm) | 16 |
| Width (cm) | 54 |
BioCote Benefits
What is BioCote?
BioCote anti-microbial coating additive is present on all Stuart brand equipment and offers anti-microbial action to help prevent cross-contamination.
This unique additive is applied during the manufacturing process and contains trace levels of active silver ions which provide an effective anti-microbial action, active against many strains of common bacteria and fungi, including Aspergillus niger, E.coli and Listeria mono.
This coating remains active for the entire product lifespan and can actually help in prolonging the life of products, where a build up of microbes may cause premature material degradation.
BioCote works by inhibiting bacteria in a number of ways including protein damage, cell membrane damage, oxidative damage and DNA interference. Ultimately, the bacteria are prevented from replicating. Without this, bacteria have been shown to die naturally within around 8 hours. BioCote works in a way different to antibiotics so it is currently effective against antibiotic resistant strains.
More recently, BioCote technology was proven effective against particular virus strains, with a reduction of 90% in 2 hours against feline coronavirus, strain Munich. Read more here.
Comparison of Stuart Water Stills;
| A4000 | A8000 | A4000D | D4000 | W4000 | |
|---|---|---|---|---|---|
| Output (L/hr) | 4, single | 8, single | 4, double | 4, single | 4, single |
| pH | 5.0-6.5 | 5.0-6.5 | 5.0-6.5 | 5.0-6.5 | 5.0-6.5 |
| Conductivity (uS / cm) | 1.0-2.0 | 1.0-2.0 | 1.0-1.5 | 1.0-2.0 | 3.0-4.0 |
| Resistivity (MΩ-cm) | 0.5-1.0 | 0.5-1.0 | 0.7-1.0 | 0.5-1.0 | 0.25-0.3 |
| Temperature (°C) | 25-35 | 25-35 | 25-35 | 25-35 | 25-35 |
| Pyrogen Content* | Pyrogen-free | Pyrogen-free | Pyrogen-free | Pyrogen-free | Pyrogen-free |
| Required Water Supply (L/min) | 1 | 2 | 2 | 1 | 1 |
| Required Water Pressure | 3-100psi | 3-100psi | 3-100psi | 3-100psi | 3-100psi |
| Maximum Power | 3 | 6 | 6 | 3 | 3 |
| Dimensions (w x d x h) mm | 550 x 240 x 410 | 550 x 240 x 410 | 550 x 410 x 410 | 540 x 160 x 410 | 500 x 150 x 450 |
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