Bmst System - Grundfos BMST Series Installation And Operating Instructions Manual

Discharge pipe
In order to facilitate service of the pump and motor, it is important
that the delivered service connector is built into the system.
1. Fit the two rubber parts.
2. Install the service connector.
Position of rubber parts
Fig. 9
3. Move the two rubber parts over the service connector.
Fig. 10 Position of service connector and rubber parts
4. Fit the Victaulic couplings and tighten the bolts to 33 Nm.
Fig. 11 Victaulic couplings
If installing a BMS hs pump, you are now ready for electrical
installation. See section 5.1 BMS hs pump.
If building a BMST system, see section 4.2.2 Lifting and handling
the BMT pump.
If building a BMSX system, see section 4.3.2 Installation of BM hp
pump.
8

4.2 BMST system

A BMST system is built by using a BMS hs as primary pump and
a BMT as secondary pump. The BMT pump is driven by the high-
pressure concentrate from the membrane and used as feed pump
for the primary BMS hs pump.
Fig. 12 BMST system
Fig. 13 BMT pump
4.2.1 BMS hs pump installation
See section 4.1 BMS hs pump.
4.2.2 Lifting and handling the BMT pump
1. Hoist the pump into place, and lower it down slowly.
2. Install and secure the pump.
3. Support the pump close to the turbine, using the bracket
behind the turbine housing.
4. Use a clamp or similar device at the other end. See the
example in fig. 12.
4.2.3 BMT pump installation
Caution
Use vibration dampers.
The BMT pump must be level. If there is a gap between the
foundation/frame and the BMT pump, use a spirit level, a feeler
gauge and shims to level the pump. Then secure the pump by
means of suitable bolts depending on the foundation/frame.
4.2.4 Flushing the system
To avoid impurities in the pump, flush the pipes
Caution
before you connect the pump inlet and discharge
pipes.