Stuart Scientific A4000D Aquatron Water Still, 4 l/hr, Double Distilled, 1.0 - 1.5 Conductivity, µ Scm-1

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Includes wall mounting bracket (for single distilled models only), reservoir water level sensor, hose kit, funnel, and power cord with stripped ends.


Output, lhr4, double
pH5.0 - 6.5
Conductivity, µ Scm-11.0 - 1.5
Resistivity, mOhm-cm0.7 - 1.0
Temperature, °:C25 - 35
Pyrogen content*Pyrogen free
Water supply2 lmin, 3-100psi, (20-700kPa)
Electrical supply220 or 240V, 50-60Hz, single phase
Max. power, kW6
Dimensions (wxdxh), mm550x410x410


  • £4115.22


  • Fully automatic operation
  • High purity pyrogen-free output
  • Low-temperature distillate
  • Operates from any raw water supply
  • Reservoir level control
  • Simple conversion to pre-treated feed
  • Supplied with wall mounting bracket
  • Safety features allow unattended operation
  • Simple to clean

A4000D Produces 4 liters/hour double distilled water for higher purity levels. The first stage distillation is carried out in a glassware set mounted at the front of the cabinet allowing easy access for descaling. The distilled water is fed to the second set of glassware mounted at the rear and distilled a second time. The rear glassware is fitted with a level sensor to ensure the heater is only activated when there is sufficient water in the boiler.

The unique condenser design ensures that the droplets of distilled water remain in contact with the cooling coil for the longest possible time ensuring maximum energy transfer. This produces cold distilled water ready for immediate use and pre-heats the boiler feed to increase efficiency.

All glass construction allows rapid descaling using strong mineral acids. A built-in "clean" function and integral acid addition funnel make the cleaning operation simple and safe with no need to dismantle any of the glassware. A large-bore ROTAFLO® stopcock with PTFE key is fitted for easy draining of chemicals after cleaning.

A flow sensing device will detect any reduction in the flow of cooling water to below the required level and will turn off the still before it can overheat. Sensing the flow of cooling water rather than its pressure is safer and allows the still to run normally on low-pressure supplies down to 3psi (20kPa). As a fail-safe device, there is an over-temperature thermostat mounted in the boiling chamber.

The Aquatron is very easy and safe to assemble and maintain. Both the acrylic safety screen and the cabinet lid are removable giving unrivaled access to the glassware components. Screwthreads are incorporated on all water connections so hoses can be fitted and removed easily and safely without the risk of breakage.

Every Aquatron® water still is supplied with a reservoir level control.

The control is a simple and effective system that can be fitted to virtually any type of reservoir vessel. It will turn the still off when the reservoir is full and restart it when the level in the reservoir drops as distilled water is removed for use making it fully automatic. water purification

Can operate standing on the laboratory bench or be wall mounted. Supplied with easy to fit wall mounting bracket.


    • SKU
    • Commodity Codes
  • Production Capacity l / h
  • Distillation type
    Double Distilled
  • Conductivity µ Scm-1
    1.0 - 1.5
  • Manufacturer
    Stuart Equipment (part of Cole-Parmer)
  • Country of Origin
    United Kingdom