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- Cole Parmer WS-100-4 Stuart Water Still, 4 L/hr
Cole Parmer WS-100-4 Stuart Water Still, 4 L/hr
- £1,159.65 excl. VAT
- £1,391.58incl. VAT
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Print PageCole-Parmer WS-100-4 Stuart 4L/hr water still. Includes a support stand with two boiler straps, hose kit, gasket kit, and power cord with stripped ends. This basic economical water still is perfect for general laboratory and educational distillations. Borosilicate glass boiler and condenser provide the highest purity distillate. The unique condenser design ensures that the distilled water droplets remain in contact with the cooling coil for an extended period for maximum energy transfer and immediate cold distilled water.
Condenser with screw thread connections and plastic 3/8" ID hose barb fittings allow quick and safe tubing change without worrying about breaking the glassware. Easily descale without dismantling the glassware using the built-in acid addition funnel and wastewater drain. Long-life chromium-plated metal heater is protected by twin safety thermostats
Features:
- Two independent thermostats prevent overheating
- Features a sturdy metal stand for either wall or bench mounting
- Operate directly from tap water
- 220 VAC operation
*Effective May 2022, the Stuart Water Still Model number W4000 has now been rebranded Cole-Parmer under Model number of WS-100-4. All the same great features and specifications, just with a new and improved look.
| ASTM Water Grade | Type II |
| Capacity | 4L/hr |
| Min Inlet Pressure (PSI) | 3 |
| Min Inlet Pressure (bar) | 0.2 |
| Height (in) | 18.75 |
| Depth (in) | 18 |
| Width (in) | 6 |
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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