turning it in the clockwise direction with the generator wrench. Hold
the dispersion tool with the stator vertical at the top to prevent the
small springs of the friction ring seal from falling out.
• In this position the components of the friction ring seal can be pul-
led off the rotary shaft (2001).
• Press the rotary shaft (2001) with ball bearing (4) down and out
of the shaft tube.
• The friction rings must be replaced if they are worn. The fric-
tion surfaces of the seal must be clean.
Reassemble the dispersion tool in the reverse sequence.
Spare parts:
Item
2
4
5
8
12
2001
3007
3008
3009
3010
3011
Sterilization :
After cleaning the dispersion tools the method A) is suitable for this disper-
sion tool. The methods B) and C) must not be used otherwise the ball bea-
ring and the friction ring seal will be destroyed.
(See Maintenance, cleaning and sterilization of dispersion tools).
20
Dispersion tool S 50 TT - W 40 TT
Overview (Fig. 3)
This dispersion tool meets all requirements for corrosion-resistance. The
parts coming into contact with the product are made from glass-reinforced
PTFE and titanium.
The PTFE components (shaft tube, stator and bearing bushing) are
relatively soft and thus permit operations in the liquid/liquid and
liquid/gaseous ranges.
Because PTFE softens at high temperatures a maximum medium
temperature of 100 °C must not be exceeded.
Designation
Hard, abradant and abrasive materials must not be processed.
Grooved pin
High flow speeds (up to 20 m/s) result in chemical corrosion of the titanium
Deep-groove ball bushing
components when used in high-oxidizing acids.
Circlip
The dispersion tool can be disassembled for cleaning as described below:
Friction ring seal assembly
Shaft tube
Rotary shaft assembly
Spring
Flat seal
Round seal
Pin
Round seal
Reassemble the dispersion tool in the reverse sequence. When
assembling ensure that the bearing bushing is correctly installed. The
stator must only be screwed on to the shaft tube by hand.
• Unscrew the rotor (15) from the rotary shaft (9) using the generator
and shaft wrenches included in the tool kit. The generator wrench is
used to hold the rotor while unscrewing it by turning the shaft from
above with the shaft wrench.
• Unscrew the stator (14) from the shaft (10) (left-hand thread).
Insert the cross pin (3mm) of the shaft wrench into the slot on the
end face of the shaft tube. The stator can now be unscrewed by tur-
ning it in the clockwise direction with the generator wrench.
• Pull the rotary shaft (9) down and out of the shaft tube. The com-
ponents (7; 11 und 12) threaded on to the shaft can simply be pulled
off.
• The bearing bushing (7) must be replaced if it is worn.
Risk of injury !
032009