Firma:                   GFL

Modell:                Bi-Destillation

Kommentar:        Dokumente engl.

Water Stills for double distillation

GFL Double Distillers 2102, 2104 and 2108 produce ultra-pure, bacteria and pyrogen free distillat with a very low conductivity (approx 1.6 µS/cm at 20°C). The distillate is in conformity with DAB regulations and the regulations of international pharmacopoeia.

1           Main switch

2           Pilot lamp "Operation mono stage"

3           Pilot lamp "Low water mono stage"

4           Pilot lamp "Clean"

5           Pilot lamp "Operation bi stage"

6           Pilot lamp "Low water bi stage"

Functional description

Double Distillers

GFL Double Distillers are fully automatic.

After switching the unit on via the main switch, the green pilot lamp in the main switch will glow. The built-in solenoid valve is opened. Water flows through the cooling coil of the bi stage glass condenser of the bi stage and the cooling coil of the mono stage condenser and fills the boiler of the mono stage with tap water, regulated by a mechanical water level regulator. The water level regulator controls the water level in the boiler. Water that will not be used for vaporization flows off through the cooling water outlet.

The water level in the boilers is controlled by float switches that cause the heating elements to be switched on and that protect the unit against running dry.

Additionally, the heating elements in both distillation stages are protected against over temperature by thermostatic low water cut-offs.

When the heating elements of the mono stage boiler are below water level, they are switched on and bring the water to the boil.

Steam will rise up and condense on the cooling coil of the mono stage condenser. Mono distillate can be withdrawn from the glass tap at the front of the unit.

If the glass valve for withdrawal of mono distillate is closed, the distilled water from the mono stage will be led to the boiler of the second stage.

When the heating elements of the bi stage boiler are below water level, the heating elements are switched on. The mono distillate in the bi stage boiler is brought to the boil. The steam will condense in the glass condenser of the bi stage and then flows off as bi distillate through the outlet tube with dust guard shield that is screwed to the condenser. The maximum water level in the bi stage boiler is limited by an overflow to the cooling water outlet.

Operation mode of the heating elements in both stages is indicated by yellow pilot lamps.

When the double distiller is operated for the first time, the procedure until production of bi­distillate will take approx 2 hours.

Double distillers with separate water supply

(Accessory, should only be built into the unit in our works in Burgwedel)

The accessory "separate water supply" serves to feed the mono stage boiler with softened or desalinated water and the cooling coils with phosphatized or normal tap water.

Industrial water is fed to the boiler through a solenoid valve with approx 0.5 litres per minute. \/Vater that is not required flows off through the "outlet separate water supply". The condensers are fed with cooling water through a second solenoid valve. The cooling water flows off through the cooling water outlet.

Owing to the separation of industrial and cooling water, the water fed to the boiler is not preheated, the efficiency of the still is therefore reduced by approx 10-15%.

Degassing

Carbon dioxide is released through the two exhaust tubes an the top of the unit.

Technical Data

Exterior dimensions (W x D x H)         Model 2102-         500 x 260 x 470mm

                                                              Model 2104-         550 x 280 x 570mm

                                                              Model 2108-         700 x 390 x 700mm

Distillation capacity                               Model 2102-         2 l/h mono or bi distillate

                                                              Model 2104-         4 l/h mono or bi distillate

                                                              Model 2108-         8 l/h mono or bi distillate

Distillate quality                                                                  in conformity with DAB, bacteria and pyrogen free, low gas content.

              Conductivity                                                         approx 2.1 µS / cm at 20°C

                                                                                          (mono distillate)

                                                                                          approx 1.6 pS / cm at 20°C

                                                                                          (bi distillate)

Cooling water required                          Model 2102-         approx 72 l/h

                                                              Model 2104-         approx 120 l/h

                                                              Model 2108-         approx 198 l/h

Watet pressure min / max                                                 > 3.5 bar / 7 bar

Electrical connection                             Model 2102-         230V +/-10%, 50 .... 60Hz, 3.5k\N

Mains connection                                                               mains connection cable w/o plug

                                                              Model 2104-         220V / 3 / PE or 400V / 3 / N / PE

Caution! Any deviation of the                                             +/-10%, 50 .... 60Hz, 6,5kVV

mains power, even within the                                            Mains connection cable w/o plug above stated limits, has effects on                                              Model 2108-         220V / 3 / PE or 400V / 3 / N / PE

the quantity of distilled water                                             +/-10%, 50 .... 60Hz, 11,5kW

produced.                                                                           Mains connection cable w/o plug

Protection type / protection class                                      I / IP20

Surrounding conditions                                                      Only inside buildings

                                                                                                                        (not in explosion endangered surroundings)

              Height                                                                  up to 2000m MSL

              Ambient temperature                                           +10 °C to +40 °C

              Humidity                                                               max 80% rel humidity, max 31 °C,

                                                                                          decreasing to 40% rel humidity

                                                                                          at 40 °C.

Weight                                                   Model 2102-         18.0kg / 38.0kg

(net / with water filling)                           Model 2104-         23.0kg / 45.0kg

                                                              Model 2108-         39.0kg / 64.0kg