Grundfos BM 125, Инструкция по установке и эксплуатации

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English (GB)
4
5.1 Booster modules connected in series and in
parallel
• For modules connected in series, mounted above each other,
we recommend to connect the pipes as shown in fig. 6 .
• For modules connected in parallel, mounted above each other,
we recommend to connect the pipes as shown in fig. 7 . This
layout ensures that the modules are filled with water before
starting.
• For modules connected in series and parallel, mounted above
each other, we recommend to connect the pipes as shown in
fig.
8 .
• For modules connected in series and fitted with a bypass,
mounted above each other, we recommend to connect the
pipes as shown in fig.
9 .
Symbols used in figures 6 to 9 :
Fig. 6 Booster system with four modules connected in series,
mounted above each other
Fig. 7 Booster system with four modules connected in
parallel, mounted above each other
Fig. 8 Booster system with two modules connected in series
and in parallel, mounted above each other
Fig. 9 Booster system with four modules connected in series
with bypass, mounted above each other
6. Pipe connection
The booster modules are fitted with clamp liners for Victaulic/PJE
clamp couplings on the suction and discharge sides. See fig.
10 .
Fig. 10 Pipe connection using clamp couplings
TM
00
37
60
19
02
TM
00
3
761
19
02
Air escape valve
Closing valve
Non return valve
Pressure switch
Flow switch
Motor operated valve
Diaphragm tank
Pressure gauge
: Air escape valve
: Isolating valve
: Non-return valve
: Pressure switch
: Flow switch
: Pressure gauge
: Motor-operated valve
: Diaphragm tank
Bypass
1
2
3
4
Bypass
Bypass
Bypass
Bypass
Bypass
1
2
3
4
Bypass
Bypass
Bypass
Bypass
TM
00
37
62
19
02
T
M
00
37
63
19
02
Note
As venting problems may arise in such installations,
it is advisable to install suitable vent devices.
TM
01 106
6 359
7
Caution
Avoid stress in the pipe system.
Note
Clean Victaulic connections, rubber and pipes, with
freshwater in order to prevent crevice corrosion.
Size Type
Victaulic
coupling Gap
[mm]
BM 4" BM 3A - BM 9 1 1/4"
∅
42 1
BM/BMhp 6" BM 17 - BM 60 3"
∅
89 3
BM 8" BM 30 - BM 46 3"
∅
89 3
BM 8" BM 60 4"
∅
114 6
BM/BMhp 8" BM 77 - BM 95 5"
∅
139 6
BM/BMhp 8" BM 125 - BM 215 6"
∅
168 6
Bypass
Bypass
1
2
3
4
Bypass
Bypass
Bypass
1
2
3
4
Bypass
Pipe system Clamp liners Booster module
Gap