Grundfos BM 4, BM 6, BM 8, BMB 4, BMB 6, BMB 8 Booster module Installation and operating instructions

Below you will find brief information for Booster module BM 4, Booster module BM 6, Booster module BM 8, Booster module BMB 4, Booster module BMB 6. These boosters are designed for pressure boosting, liquid transfer and circulation in systems with high static pressure. They are suitable for both vertical and horizontal installation. The modules are supplied as standard without a built-in non-return valve, but they are available with non-return valve.

PDF Download
Document
Grundfos Booster module BM 4, BM 6, BM 8, BMB 4, BMB 6 Installation and operating instructions | Manualzz

Advertisement

Advertisement

Advertisement

Key features

  • Pressure boosting
  • Liquid transfer
  • Circulation
  • High static pressure
  • Vertical and horizontal installation
  • Available with non-return valve

Frequently asked questions

Close the isolating valve on the discharge side of module 1 to approx. 1/3 of maximum flow. Start module 1 and record discharge pressure and flow readings. Stop the module and interchange two of the phases to the module. Restart the module and re-record discharge pressure and flow readings. Compare the results. The connection which gave the larger pressure and flow is the correct direction of rotation.

The maximum permissible liquid temperature for a Grundfos 4" booster module is 40°C (104°F), for a Grundfos 6" booster module is 40°C (104°F), and for a FRANKLIN 8" booster module is 30°C (86°F).

Check that the pressure switch functions normally and is adjusted correctly. Check that the minimum inlet pressure is correct. Check that the flow switch is faulty or incorrectly adjusted. Check the fuses and the motor starter overload unit.
Preparing document for printing…
0%