The Grundfos BM 5 Horizontal High-Pressure Booster Module (BM 5) is part of the Grundfos BM range, engineered in Horizontal 316 SS cylinder with submersible motor and CRN-style pump end. Delivers up to 32 GPM at heads up to 1000 ft, with motor sizes from varies HP. Drive: Submersible MS/MMS 6" or 8" motor, fixed speed (BM) or variable speed via CUE drive. Used in Reverse osmosis high-pressure feed and similar applications.
Specifications
| Max flow | 32 GPM (60 Hz) |
| Max head | 1000 ft |
| Max working pressure | 435 psi |
| Pump type | 4-inch booster module |
| Frequency | 60 Hz |
| Voltage | 115/230 V single-phase or 208-230/440-480 V three-phase (model dependent) |
| Liquid temperature | 5 - 250 °F (-20 - 250 °F with HQQV seal) |
| Construction | Horizontal 316 SS cylinder with submersible motor and CRN-style pump end |
| Motor | Submersible MS/MMS 6" or 8" motor, fixed speed (BM) or variable speed via CUE drive |
| Brand | Grundfos |
| Model | BM 5 |
| Country of Origin | Denmark / USA (varies by model) |
Materials of Construction
All AISI 316 stainless steel sleeve and wetted parts; available with 904L and duplex options on request
Typical Applications
- Reverse osmosis high-pressure feed
- seawater desalination
- brackish water RO
- high-pressure pressure boosting
- washdown
- fire-fighting
Datasheets & Manuals
Industries & Applications
The Grundfos BM 5 is widely deployed across these industries and use cases:
- Seawater reverse osmosis (swro) high-pressure feed
- Brackish water ro booster
- High-pressure cleaning systems
- Fire-fighting jockey systems
- Mobile desalination units in containers
- Oil and gas water injection
- Mine dewatering booster
Related & Compare
Frequently Asked Questions
- What is the maximum flow rate of the Grundfos BM 5?
- The BM 5 delivers up to 32 GPM at 60 Hz.
- What is the maximum head/pressure of the BM 5?
- Maximum head is 1000 ft (about 435 psi). Actual operating point depends on stage count and motor size.
- What materials of construction are available for the BM 5?
- All AISI 316 stainless steel sleeve and wetted parts; available with 904L and duplex options on request
- What applications is the Grundfos BM 5 suitable for?
- Reverse osmosis high-pressure feed, seawater desalination, brackish water RO, high-pressure pressure boosting, washdown, fire-fighting
- Is the Grundfos BM 5 available with stock or quick-ship lead times?
- Many configurations ship from stock through Grundfos USA. Contact ForeverPure Place for current lead time on your specific configuration.
- How do I get a quote for the Grundfos BM 5?
- Use the Request Quote button on this page, call our sales team, or email sales@foreverpureplace.com with model, voltage, materials, seal type and quantity.
Accessories for This Pump
Commonly specified alongside fixed-speed Grundfos pumps. Send us your pump nameplate and we will confirm the correct part for your exact build and voltage before you order.
CUE Variable Frequency Drive
External VFD that converts this fixed-speed pump to constant-pressure or variable-flow control.- RPS Pressure Sensor
Discharge pressure feedback for constant-pressure booster control.
