GFL Water Stills produce ultra pure, bacteria free and pyrogen free distillate with very low conductivity. The distillate quality complies with DAB regulations and with international pharmacopeia requirements. Energy is saved through distillation of the heated cooling water. The distillate is needed e.g. for the preparation of bacteriological and medical samples and for HPLC.
Four product ranges are available, with 14 models of user-friendly and easy-to-service units.

Water stills for single distillation without and with storage tank:
Models 2001/2 and 2001/4, bench units, and models 2002 to 2012, suitable for both bench and wall mounting. Conductivity of the distillate approx. 2.3 µs/cm at 20°C.

Water stills for double distillation:
Models 2102 to 2108 (fully automatic), suitable for both bench and wall mounting. Conductivity of mono distillate approx. 2.2 µs/cm at 20°C; conductivity of bi-distillate approx. 1.6 µs/cm at 20°C

Glass water stills for single and double distillation:
Models 2202 to 2304 (fully automatic), suitable for both bench and wall mounting. Models 2202 to 2208 (single): Conductivity of the distillate. 2.2 µs/cm at 20°C. Models 2302 and 2304 (double): Conductivity of the distillate approx. 1.6 µs/cm at 20°C.

Water stills for single distillation without storage tank, models 2001/2 and 2001/4

• Evaporator, condenser (cooler) with baffle and heating element made of stainless steel
• Thermostatic low water cut-off
• Thermometer to display the temperature of the cooling water
• Distillate withdrawal through drain tube on the front of the unit
• Cooling water inlet and outlet on the right-hand side of the unit*
• Water connection: cooling water inlet ½ inch (inner Ø 12.7 mm)
• Cooling water outlet ½ inch (inner Ø 12.7 mm)
• Degassing of carbon dioxide through vent in the condenser
• Housing electrostatically powder coated with epoxy resin

Water stills for single distillation with storage tank, Models 2002, 2004, 2008 and 2012

• Evaporator, condenser (cooling coil), heating element and storage tank made of stainless steel
• Storage tank for distillate accepts double the hourly capacity of the unit
• Water supply through an integrated solenoid valve with connection for pressure hose ½ inch* (inner Ø 12.7 mm), water pressure required: > 3 bar to max. 7 bar
• Thermostatic low water cut-off
• Cooling water outlet with hose connection ¾ inch* (inner Ø 19 mm)
• Distillate withdrawal at the front
• An electronic level switch switches the still off when the storage tank is full and restarts it automatically when distillate is withdrawn
• Automatic cleaning indicator
• Drainage of the evaporator through drain cook on the right-hand side of the unit
• Degassing of carbon dioxide through gas exhaust tube in the upper part
• Double-walled housing. Housing is made of electrolytically galvanized sheet steel, electrostatically powder coated with expoxy resin

Water stills for double distillation, Models 2102, 2104 and 2108

• Evaporator, condensers (coolers): 1st stage and heating element made of stainless steel. Condenser 2nd stage including baffle made of Duran®/borosilicate glass 3.3
• Water supply through an integrated solenoid valve with connection for pressure hose ½ inch* (inner Ø 12.7 mm), water pressure required: > 3 bar to max. 7 bar
• Cooling water outlet with hose connection ¾ inch (inner Ø 19 mm)
• Distillate withdrawal: stop valve made of borosilicate glass 3.3 with PTFE plunger for single distillate, outlet with dust shield made of borosilicate glass 3.3 for double distillate
• Low water cut-off: 1. float switch, 2. thermostatic safety switch
• Electronic impurity detector
• Degassing of carbon dioxide through outlet tubes on the condensers
• Two-part housing made of electrolytically galvanized sheet steel, electrostatically powder coated with expoxy resin; upper part easily removable through quick-release catches

Glass water stills for single distillation, Models 2202, 2204 and 2208
Glass water stills for double distillation, Models 2302 and 2304

• Extremely low level of metal ions in the disillate
• Visible distillation process through easily removable, unbreakable front screen that does not steam up
• Evaporators, condensers and overflows made of Duran®/borosilicate glass 3.3. Condensers with dribble guard
• Water supply through an integrated solenoid valve with connection for pressure hose ½ inch* (inner Ø 12.7 mm), water pressure required: > 3 bar to max. 7 bar
• Cooling water outlet with hose connection ½ inch* (inner Ø 12.7 mm)
• Heating elements with quartz sheathing
• Sterilisation of the condensers by steam
• Electronic level control during the whole distilling process
• Water level control in the condenser with automatic power cut-off in case of water shortage
• Electronic impurity detector induces automatic water change to rinse and clean the condenser
• Degassing of carbon dioxide through gas exhaust tubes on the condenser
• Distillate withdrawal through hose connection at the right-hand side
• Housing made of electrolytically galvanized sheet steel, electrostatically powder coated with expoxy resin

*Tubes for water inlet and outlet can be supplied as accessories.

1) Other voltages available on request.

For all GFL water stills. Eliminates chlorine particles in the tap water added by the local water works. Complete with connection for pressure hose ½ inch* (inner Ø 12.7 mm), including first filling. The fillung should be exchanged every six month.
*Hoses for water in-and outlet are not included.

For all GFL water stills. Prevents scale formation in the condenser by phosphatising the tap water. Can be used from 4-15 °dH (German hardness). Complete with connections for pressure hose ½ inch* (inner Ø 12.7 mm), including first filling. The filling should be replaced according to the consumption.
*Hoses for water in-and outlet are not included.

For all GFL water stills. For pre-cleaning the tap water, and to protect the unit from premature contamination. Food safe according to FDA regulations. Complete with connections for pressure hose ½ inch* (inner Ø 12.7 mm), including filter candle. The candle should be replaced every six months.
*Hoses for water in-and outlet are not included.

to feed the evaporator with softened or desalinated water (pressure > 1 bar) and the cooling coil (pressure > 3 bar) with phosphate-treated or normal tap water.
2901: When the storage tank is full, the pre-treated water is not switched off automatically.
2903: The unit automatically controls the supply of cooling and pre-treated water.
Efficiency of the still is reduced by approx. 10 – 15 %.

to feed the evaporator with softened or desalinated water (pressure > 1 bar) and the cooling coil (pressure > 3 bar) with phosphate-treated or normal tap water.
2902: The unit automatically controls the supply of cooling and pre-treated water.
2909: The solenoid valve switches the pretreated water off when the storage tank is full.
Efficiency of the still is reduced by approx. 10 – 15 %.

to switch off power and water when the external storage tank is full (not included in the standard scope of supply).

To maintain sterility of the distillate.

For water stills 2001/2 and 2001/4: Type 2940, consisting of hoses for waterinlet and outlet (1.5 m) and hose clips
For water stills 2002 to 2012, 2102 to 2108: Type 2941, consisting of hoses for waterinlet and outlet (1.5 m) and hose clips
For water stills 2202 to 2208: Type 2943, consisting of hoses for water inlet and outlet (1.5 / 1.0 m), distillate withdrawal (0.5 m) and hose clips
For water stills 2302 to 2304: Type 2944, consisting of hoses for water inlet and outlet (1.5 / 1.0 m), distillate withdrawal (0.5 m) and hose clips

For water stills 2002, 2004 to 2012: Type 2946, consisting of hoses for waterinlet and outlet (1.5 m) and hose clips, in connection with Separate Water Supply 2901 or 2909
For water stills 2102 to 2108: Type 2947, consisting of hoses for waterinlet and outlet (1.5 m) and hose clips, in connection with Separate Water Supply 2903
For water stills 2202 to 2208: Type 2948, consisting of hoses for waterinlet and outlet (1.5 / 1.0 m), distillate withdrawal (0.5 m) and hose clips, in connection with Separate Water Supply 2902
For water stills 2302 and 2304: Type 2949, consisting of hoses for waterinlet and outlet (1.5 / 1.0 m), distillate withdrawal (0.5 m) and hose clips, in connection with Separate Water Supply 2902