LEYBOLD RUVAC WH 2500, Инструкция по установке и эксплуатации

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Installation
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130001398_002_C0 - 09/2016 - © Leybold
3.5 Connection of the Flanges
Already small quantities of liquids (from the vacuum chamber or the piping)
can lead to liquid damages within the pump. These may lead to a defor-
mation of the impellers and may entirely destroy the pump. Suitable pro-
tective measures should be provided as required in the piping on the intake
side (separator, T-piece).
The pumps are vented with nitrogen for protection during transport. Only
remove the packing flanges before immediate connection.
If not already done, remove the protective shipping covers, foil or packing
flanges from the flanges.
Clean the flanges and check that the sealing surfaces are in perfect condi-
tion.
Flange the pump to the vacuum system.
Don’t place any stress on the pump casing when installing the intake and
discharge lines. Fit compensation elements in order to avoid such stresses.
Inspect the rubber elements of the pump feet for excess deformation (see
Section 3.1).
When attaching the pump directly (without bolting down the feet) to the
forevacuum pump, a special adapter has to be used. See Section
Accessories.
You must also check whether the backing pump is rigid and stable enough
to support the load of the RUVAC pump in each case. Notice safety infor-
mation 0.1.
Flange bolts and tightening torque specifications
RUVAC WH/WHU 2500 4400 7000
Intake flange DN 250 ISO-K 250 ISO-K 320 ISO-K
Bolts 12x M10 12x M10 12x M12
Tightening torque 48
±5
Nm 48
±5
Nm 80
±8
Nm
Discharge flange DN 100 ISO-K 160 ISO-K 160 ISO-K
Bolts 8x M8 or 4x M16 8x M10 8x M10
Tightening torque 25
±2,5
Nm 100
±10
Nm 48
±5
Nm 48
+5
Nm
The specified torque levels apply to oiled bolts of a minimum strength class
of 8.8 but are not for stainless steel bolts. These can also be used but with
different tightening torque levels.
Always use the full set of bolts intended for the specific flange connection.
NOTICE
NOTICE