Oxygen content:
max.
4 mg/kg
Chloride content:
max.
100 mg/kg
Carbonate hardness:
max.
10 ° dH
Consumption of
potassium permanganate:
max.
10 mg/kg
Carbon dioxide:
Undetectable
Ammonia:
Undetectable
pH-value:
7 – 9
Max. fore-line over pressure:
max.
6 bar
Minimum flow rate:
see 8. ”Technical Data“
6
Fitting The Splinter Shield (Accessory)
➡
Insert the splinter shield in the ISO-K flange in condition on
delivery.
Inserting the splinter shield in ISO-KF flange
A
Strap (Condition on delivery)
3.3. Connecting The Fore-Vacuum Side
Recommended PFEIFFER backing pump:
– dry compressing diaphragm pump
– for large vacuum chambers UniDry™ 050-3.
Connecting the backing pump
All connections of the fore-vacuum line: With the usual small
flange components or hose screw connections.
Be sure to conduct away the exhaust gases
from the backing pump. Do not reduce the free
cross section of the fore-vacuum flange with
following components.
The exhausted process gases and vapours can
represent a health hazard and can also be envi-
ronmentally damaging.
Comply with all the gas manufacturer’s safety
instructions.
22
23
21
V
Connecting the backing pump
21 Backing pump
22 Fore-vacuum safety valve
23 Fore-vacuum line
➡
The electrical connection of the backing pump: Please see
the operating instructions for the Magnetic Bearing
Controller TCM 1601, PM 800 478 BN.
3.4. Connecting The Cooling Unit
The Turbopumps TMH/TMU 1600M are water cooled as stan-
dard.
The permissible ambient temperature for water
cooling is 35 °C.
When operating with reduced levels of gas load, air cooling is
possible (please see ”Accessories“)
The permissible ambient temperature with air cooling
is < 30 °C and the maximum gas flow and fore-vacuum pres-
sure are reduced compared with water cooling (please refer
to Section 8. Technical Data).
Water Cooling
The cooling water can be drawn either
– from the cooling water mains or
– from Recycled Water Cooling Unit TZK in closed circuit.
Cooling from the cooling water mains
To prevent deposits collecting in the pump the cooling water
must be filtered.
The minimum requirements for the cooling water:
Mechanically clean, optically clear, no turbidity, no sediment,
chemically neutral and temperature > dew point.
➡
Fit the delayed opening fore-vacuum safety valve (e.g.
TVV 001, Accessory) in the fore-vacuum line (in PFEIFFER
rotary vane vacuum pumps already integrated as
standard). This prevents the vacuum chamber being venti-
lated via the backing pump.
➡
With rigid pipe connections: Fit a bellows in the
connecting line to reduce vibration.
➡
Before insert the splinter shield in the CF flange the strap
must
be bent.
Inserting the splinter shield in CF-F flange
A
Strap (bent)
A
A
