Bm Hp Circulation Pump; Pipe Connection 7 Note; Inlet And Discharge Pipes - Grundfos BMEX Serie Instrucciones De Instalación Y Funcionamiento

5.3 BM hp circulation pump

6" BM hp circulation pump
8" BM hp circulation pump
Fig. 7 6" BM hp and 8" BM hp circulation pumps
Fig. 8 Positioning the BM hp circulation pump
Allowed
Not allowed
6. Pipe connection

6.1 Inlet and discharge pipes

A sample connection at the low-pressure discharge of each X-
Changer module in an X-Changer module array can be used to
confirm the performance of individual units. When the X-Changer
modules are operating normally at balanced flow, the salinity of
the low-pressure discharge water from the X-Changer will be
approximately equal to the salinity of the reject water from the
membranes. If the X-Changer modules are not balanced, the
salinity of the low-pressure discharge from the unit will be low.
If one of the X-Changer modules is not functioning properly, the
salinity of the low-pressure discharge from the unit will be lower
than the other units. If a rotor is stuck, the salinity from the stuck
unit will be approximately equal to the salinity of the seawater
feed.
The BMEX units are fitted with clamp liners for Victaulic/PJE
clamp couplings HP-70 ES on the inlet and discharge sides.
Position the clamp liners as shown in fig. 9.
During initial startup, all piping associated with the X-Changer
should be thoroughly flushed to ensure that no particles enter
and/or damage the X-Changer. Grundfos recommends
installation of a protective strainer in the flexible couplings at the
high-pressure and low-pressure inlets.
Caution
Avoid any stress in the pipe system.
Pipe system Clamp liners
Fig. 9 Positioning of clamp liners
BMEX system
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