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2.5 Connecting steam or steam condensate for aseptic use
Shaft seals for aseptic use are supplied with Ø6/Ø4 PTFE pipes for
connections.
The connection for steam or steam condensate with static double seal
in the pump body is supplied with fittings for 8 mm steel pipes.
Steam can be used at temperatures up to 150°C and pressures up to
5 bar.
Before starting the pump, dismantle and clean the suction pipe. Any
foreign material in the pump should be removed.
3.1 Checking the pump body for foreign material
Remove the pump body as described below:
1. Disconnect the power supply.
2. Remove the pump body (pos 1) by undoing the clamp ring
(pos 2) and carefully pulling off the pump body
3. Turn the impeller (pos 4) to ensure that there is no foreign
material behind it.
4. If there is any foreign material in the pump, remove it.
5. When the pump body is clean and free of foreign material, reas
semble the pump.
Mount the pump body as described below:
6. Press the pump body in over the O-ring (pos 3) and fit the
clamp ring (pos 2).
7. Install suction and discharge pipes. Check that the pipe unions
have been tightened properly and that pipe supports have been
fitted.
To make the pump body easier to fit, we recommend that you give the
O-ring a thin layer of non-corrosive grease approved for use in the food
industry.
3.2 Testing the pump
To check that the pump is working satisfactorily, pour water into the
pump and start it for a moment. Check the direction of rotation. Listen
for any unusual noises.
In pumps with water-flushed or steam-flushed shaft seals, the flushing
chamber by the shaft seal must be filled with water/steam.
Never allow the pump to run without liquid, as this will ruin the shaft
seal.
2 Installation of the pump
3 Before start-up
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