Parameter
Cooling water
Electrical conductivity, max.
≤ 100 µS/cm
Particle size, max.
< 200 µm
Tbl. 5:
Requirements on the cooling water composition
Parameter
Cooling water
Feed capacity
Hepta 450 L: 4 ... 10 l/min
Hepta 650 L: 6 ... 14 l/min
Water pressure
1000 – 6000 hPa
Feed temperature
+10 – + 30 °C
Necessary differential pressure between flow and return flow
≥ 1000 Pa
Tbl. 6:
Prerequisites for the cooling water
Diameter
Water-differential pressure
Hepta 450 L
Hepta 650 L
No calibration
n. a.
1000 – 2000 hPa
4 mm at the cooling water outlet
1000 – 2000 hPa
2000 – 3000 hPa
4 mm at the cooling water inlet and cooling water outlet
2000 – 6000 hPa
3000 – 6000 hPa
Tbl. 7:
Select diameter of the orifice plate
5.5 Connecting sealing gas
Sealing gas protects against contamination at the points of shaft feedthrough when conveying solvents
or reactive gases.
Required consumable material
● Nitrogen (N
2
) or another inert gas
Required tool
● Open-end wrench,
WAF 13
4
1
3
2
Fig. 7:
Sealing gas connection
1 Inferential meter
3
Sealing gas connection
2 Pressure regulating valve
4
Pressure gauge
Procedure
1. Connect the sealing gas line.
– Use the gas cylinder with pressure reducer and inferential meter.
2. Set the sealing gas amount in accordance with the table.
Installation
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