Installation
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Installation and operating instructions Wilo-Atmos GIGA-I/-B
51
CAUTION
Risk of damage due to incorrect handling!
The pump may never be used as a fixed point for the pipe.
r
5 x DN
d
s
r
≈
2,5 * (d-2s)
Fig. 4:
Settling section upstream and down-
stream of the pump
ƒ
The present NPSH of the system always has to be greater than the required NPSH
of the pump.
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The forces and torques being exerted by the pipeline system on the pump flange
(e.g., by warping, thermal expansion) may not exceed the permitted forces and
torques.
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The pipes and pump must be free of mechanical stress when installed.
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The pipes must be fixed in such a way that the pump does not have to support the
weight of the pipes.
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The suction line is to be kept as short as possible. Lay the suction line to the pump
so that it continuously rises while the inlet falls. Avoid possible air entry points.
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If a dirt trap in the suction line is required, its free cross-section has to be 3 – 4
times the cross-section of the pipe.
ƒ
For short pipes, the nominal diameters must be at least those of the pump connec-
tions. For long pipes, determine the most economical nominal diameter in each
case.
ƒ
To avoid higher pressure losses, make adapters for larger nominal diameters with
an extension angle of approx. 8.
NOTICE
Avoid flow cavitation!
• A settling section must be provided upstream and downstream of the pump in
the form of a straight pipe. The length of the settling section must be at least
5 times the nominal diameter of the pump flange.
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Remove the flange covers at the suction and pressure ports of the pump before at-
taching the piping.
Final check
Check the alignment of the unit again according to the chapter “Installation”.
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Tighten the foundation bolts if necessary.
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Check all connections for correctness and function.
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It must be possible to turn the coupling/shaft by hand.
Do not allow the coupling/shaft to turn:
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Release the coupling and re-tighten with the prescribed torque.
In case this measure is not successful:
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Remove the motor (see chapter “Changing the motor”).
ƒ
Clean the motor centring and flange.
ƒ
Reinstall the motor.
Summary of Contents for Atmos GIGA-B
Page 2: ......
Page 3: ...Unmounting the mechanical seal Fig I Fig II 2 1 1 1 Fig III Fig IV 50 Fig V Fig VI 4 4 1 2 3...
Page 4: ...Fig VII Fig VIII 2 1 3 Fig IX Fig X 3 2 1 Fig XI...
Page 5: ...Mounting the mechanical seal Fig XII Fig XIII 1 Fig XIV Fig XV 1 2 3 Fig XVI Fig XVII...
Page 6: ...Fig XVIII Fig XIX 1 2 1 Fig XX Fig XXI Fig XXII Fig XXIII 1 1 2...
Page 7: ...Exchange of Motor Fig XXIV Fig XXV 1 8x Fig XXVI Fig XXVII Fig XXVIII...
Page 10: ......
Page 11: ...11 Chinese simplified 12 English 37...
Page 13: ...zh CHS Wilo Atmos GIGA I B 13 1 1 1 1 2 WILO SE 2022 1 3 Wilo 2 2 1 2 2...
Page 14: ...zh CHS 14 WILO SE 2022 06 2 3 RCD 2 4 2 5 2 6...
Page 15: ...zh CHS Wilo Atmos GIGA I B 15 2 7 2 8 IEC VDE 8 3 3 1 3 2 3 3 Wilo...
Page 16: ...zh CHS 16 WILO SE 2022 06 3 4 30 kg 30 Atmos GIGA B...
Page 17: ...zh CHS Wilo Atmos GIGA I B 17 4 4 1 Atmos GIGA I Atmos GIGA D Atmos GIGA B 4 2...
Page 21: ...zh CHS Wilo Atmos GIGA I B 21 1 Qmin Qmin Qmin 10 x Qmax 7 4 Wilo 200 mm...
Page 24: ...zh CHS 24 WILO SE 2022 06 r 5 x DN d s r 2 5 d 2s Fig 4 3 4 8 5 8...
Page 27: ...zh CHS Wilo Atmos GIGA I B 27 Wilo 9 1 9 2 1 2...
Page 28: ...zh CHS 28 WILO SE 2022 06 2 Fig 7 NPSH NPSH 1 L1 L2 V1 V2 W1 W2 9 3 9 4 9 5...
Page 29: ...zh CHS Wilo Atmos GIGA I B 29 3 Fig 8 10 10 Wilo...
Page 30: ...zh CHS 30 WILO SE 2022 06 10 1 10 2 10 2 1 Wilo 1 2 3 4...
Page 34: ...zh CHS 34 WILO SE 2022 06 Wilo PTC 40 C Wilo 6 12 Wilo...
Page 36: ...zh CHS 36 WILO SE 2022 06 13 2 www wilo recycling com...
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