
Hydro Press
page 6 of 12
7Operating the device
Place the stainless steel press basket (7) centered onto the base frame. Subsequently,
insert the filter cloth/press bag (not shown) into the press basket; at the bottom of the
basket, fold the bag outside in. At the top, the bag is folded to the outside; this makes
filling of the fruit pulp easier. Place a container underneath the drain. The press can now
be filled with the fruit pulp. It is not necessary to fill the bag completely; pressing is
much easier to complete with less fruit pulp. Fold down the bag over the fruit pulp, and
place the lid (8) on top. Place the washer over the spindle and install clamping nut (9). On
the Hydropress VA (stainless) turn the nut with the handle until it is fixed slightely and
then press down handle to press down the lid (see also sketch in the next chapter). The
spray protection cap (not shown) must be pulled over the press basket and connect the
Hydro Press to the main power supply, using the GEKA quick disconnect (4).
Subsequently, open the water supply line.
The incoming water (max. 3 bar) applies pressure to the slurry. Press the top of the
breather valve (11) until the air has been completely removed from the diaphragm. The
juice flows through the press basket (7) into the chute of the SPEIDEL Hydro Press (10)
- see diagram below. Once the water pressure has reached 3 bar, the relief valve opens
automatically and the water discharges below. The water pressure can be read off the
pressure gauge (5) and regulated by using the water tap. To do this, the tap is closed
when the normal pressure is exceeded. Once the pressure has dropped, the tap can be
slightly opened again. The pressure gauge is a simple way of how to monitor the working
condition of your Hydro Press. A regulating valve (pressure reducing valve) is
advantageous and is most probably already installed in the line and preset to 3 bar.
Now, the water tap can be closed again. Please wait until the juice has completely
drained. Open the water drain (3) in order to drain the rubber diaphragm (6). Press the
breather valve again in order to fill the diaphragm with air. The draining water may be
collected in a container and recycled later for cleaning the fruit or watering the garden.
Once the water has stopped draining, the Hydro Press is depressurized and the clamping
nut (9) can be loosened. Remove the washer and the lid (8). After all juices have been
extracted, the spray protection cap must be removed, the bag pulled out, and the pomace
removed (Hydro Press 20, 40, 90L). In case of the Hydro Press 180L, after the work is