9
The lid is made of stainless steel. The agitator is ended with an ISO metric screw thread (M14), which allows it to be screwed
into the coupling (3). This connection is secured with a lock nut. The coupling has a hole on the upper side of the lid to which the
agitator drive can be connected. The hole also has an M14 thread. A bolt with a nut may be inserted therein. The lid of the
vacuum chamber with the stirrer mechanism is additionally equipped with two polycarbonate windows (2), which enable the
observation of the degassing process. They are protected for transport with a protective foil.
The chamber adapted to the installation of the stirrer mechanism (Photo 13) has a metal lid (1) and additional elements.
Those are:
Photo 13: Vacuum chamber with stirrer mechanism.
The legs (3) and the castors (4) allow free movement of the chamber and allow to place a container under the tank. The
clamps (2) are used to close the chamber. The drain valve (5) allows the chamber to be drained.
The lid should be mounted centrally in the middle of the chamber (Photo 14). The lid should be secured with clamps. Make
sure that the elements of the clamps of the lid are located directly above the corresponding elements of the clamps on the
chamber. Additionally, it is important that the label "THIS SIDE TO VACUUM GAUGE" is placed next to the vacuum gauge.
Photo 14: Correct location of the lid on the chamber.
1
3
4
5
2
1.
Lid.
2.
Clamps.
3.
Legs.
4.
Castors with brake.
5.
Stainless steel drain valve 1 ¼ inches.
10
If it is difficult or impossible to close at least one clamp, make sure that the lid is correctly positioned. If necessary, the
length of the clamps can be adjusted.
In order to avoid damage of the chamber during transport, the castors usually are included loosely. The manufacturer
attaches to the package a set of bolts, washers and nuts that allow the customer to assemble the castors by himself. Their
correct installation is shown in the picture below.
Picture 1: Correct installation of the castor to the tank leg.
D.
Vacuum trap.
The vacuum trap (Photo 15) is a vacuum chamber with a modified configuration. It is used in the infusion process as a
protection for a vacuum pump.
Photo 15: Vacuum trap.
Two ball valves (1,2) and a glycerine vacuum gauge (3) are mounted on the lid of the vacuum trap. The valves allow to
control the process and are suitable for connecting pneumatic hoses. The vacuum gauge shows the current pressure in the tank.
The separate use of valves and vacuum gauge instead of the air manifold (used in standard chambers) makes vacuum trap
cleaning easier.
After getting inside the trap, the liquid flooding material falls to the bottom by gravity, which prevents it from getting inside
the vacuum pump. It protects against contamination of the trap elements and the pneumatic hose leading to the pump. During
proper use, the resin only comes into contact with the hose leading to the bag (mould) and the ball valve of the trap lid
connected to it. In order to simplify cleaning of the vacuum trap, it is recommended to place a container inside the tank to hold
excess resin that gets inside the trap.
1
3
1.
Ball valve.
2.
Ball valve.
3.
Vacuum gauge.
2
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