Installation; Modules Connected In Series And In Parallel - Grundfos BM 6'' Betriebsanleitung

BMB 6"
BMB 6" is only available in version A.
BMB 8"
BMB 8" is only available in version A.

4. Installation

GRUNDFOS booster modules are supplied without built-in non-
return valve.
The booster modules are suitable for both vertical and horizontal
installation, however, the discharge port should never fall below
the horizontal plane (fig. 2).
An arrow on the module sleeve shows the direction of flow of liq-
uid through the module (fig. 1).
The module is fastened by means of clamps (fig. 3).
Because of the motor, the largest weight will be in the
first third of the sleeve (when seen from the suction
port).
Fig. 2
Fig. 3

4.1 Modules connected in series and in parallel

1. For modules connected in series, mounted above each other,
2. For modules connected in parallel, mounted above each other,
3. When modules are connected in series and parallel, mounted
4. For modules connected in series and fitted with a bypass,
Fig. 4 Booster unit with four modules connected in series,
Fig. 5 Booster unit with four modules connected in parallel,
Allowed
Not allowed
Fig. 6 Booster unit with two modules connected in series and in
it is recommended to connect the pipes as shown in fig. 4.
it is recommended to connect the pipes as shown in fig. 5.
This layout ensures that the modules are filled with water be-
fore starting.
above each other, it is recommended to connect the pipes as
shown in fig. 6.
mounted above each other, it is recommended to connect the
pipes as shown in fig. 7.
mounted above each other.
Bypass
mounted above each other.
Bypass
Bypass
Bypass
Bypass
parallel, mounted above each other.
Bypass
Bypass
4
3
2
1
4
3
2
1
4
3
2
1
5