Grundfos BM, BMS & BMSX Booster Modules for Industrial Pressure Boosting
When high pressure and high-grade steel is required for industrial pressure boosting, the Grundfos BM, BMS, and BMSX booster modules deliver energy savings and efficient operation for demanding applications. These pumps offer a simplified design constructed in stainless steel and Super Duplex for critical parts, ideal for reverse osmosis desalination, water reuse, and circulation of liquids in systems working under high static pressure. All BM and BMS pumps are available in high differential pressure (hs) and high inlet pressure (hp) variants. In principle, the pumps are maintenance-free if motors are greased and pumps are rinsed with clean water when not running.
As an authorized Grundfos Water Pump Dealer in Dubai, we supply the complete BM, BMS, and BMSX range with genuine warranty and technical support across the UAE.
Product Range Overview
| Model | Type | Application Focus |
|---|---|---|
| BM | Standard booster pump | Industrial boosting, clean & aggressive liquids |
| BM hp | High inlet pressure booster | High system pressure applications |
| BMS hs | High-speed pressure boosting | Reverse osmosis, high differential pressure |
| BMS hp | High inlet pressure module | RO second stage, high system pressure |
| BMS xl | Extended flow high pressure | Large-scale water reuse, desalination |
| BMSX | Complete RO package | Seawater & brackish water desalination |
BM Booster Pump Specifications (50/60 Hz)
BM Standard
| Parameter | Specification |
|---|---|
| Flow Sizes | 12 sizes: 3A, 5A, 9, 17, 30, 46, 60, 77, 95, 125, 160, 215 |
| Differential Pressure | 0-40 bar |
| Inlet Pressure | Max 50-60 bar (version dependent) |
| Motor Range | 0.75-92 kW |
| Speed | 50-60 Hz |
| Liquid Temperature | 40°C |
| Pipe Diameter | 114.3, 168.8 or 273 mm (4″, 6″, 8″) |
| Noise Level | Less than 70 dB(A) |
BM hp (High Inlet Pressure)
| Parameter | Specification |
|---|---|
| Flow Sizes | 9 sizes: 17, 30, 46, 60, 77, 95, 125, 160, 215 |
| Differential Pressure | 0-12 bar |
| Inlet Pressure | Max 82.7 bar (variant max 90 bar) |
| Motor Range | 5.5-30 kW |
| Speed | 50-60 Hz |
| Liquid Temperature | 40°C |
BMS hs – High-Speed Pressure Boosting
| Parameter | Specification |
|---|---|
| Flow Sizes | 5 sizes: 7, 17, 30, 46, 60 |
| Differential Pressure | 0-82.7 bar (max 120 bar discharge) |
| Inlet Pressure | Max 65 bar (BMS 7: 20 bar) |
| Motor Range | 30-180 kW |
| Speed | 1700-5500 rpm |
| VFD Requirement | Mandatory (high speed) |
BMS hs Motor Options
| Motor Type | Power Range | VFD |
|---|---|---|
| Nidec PM Motor | 44-180 kW | CUE included (pre-programmed) |
| Siemens AC Motor | 30-180 kW | Optional CUE or customer VFD |
High Pressure Solution (Two Pumps in Series)
| Parameter | Specification |
|---|---|
| Inlet Pressure | Max 65 bar |
| Discharge Pressure | Max 120 bar |
BMS hp – High Inlet Pressure Performance
| Parameter | Specification |
|---|---|
| Flow Sizes | 9 sizes: 17, 30, 46, 60, 77, 95, 125, 160, 215 |
| Differential Pressure | 0-12 bar (max 120 bar discharge) |
| Inlet Pressure | Max 82.7 bar (variant max 90 bar) |
| Motor Range | 3-37 kW |
| Speed | 1700-3600 rpm |
BMS hp Motor Options
| Motor Type | Power Range | Application |
|---|---|---|
| Grundfos MG Motor | 3-22 kW | All BMS hp sizes |
| Grundfos MGE Motor (integrated VFD) | 3-22 kW | All BMS hp sizes |
| Siemens AC Motor | 30-37 kW | All BMS hp sizes |
BMS xl – High Pressure Flow Up to 400 m³/h
| Parameter | Specification |
|---|---|
| Flow Sizes | 3 sizes: 125, 160, 215 |
| Maximum Flow | 400 m³/h |
| Differential Pressure | 0-60 bar |
| Inlet Pressure | Max 30 bar |
| Motor Range | 160-355 kW |
| Speed | 1700-3550 rpm |
| Motor Efficiency | IE4 standard |
BMS xl Features
| Feature | Benefit |
|---|---|
| High-grade stainless steel | Corrosion resistance |
| High durability | Long service life |
| Highest efficiency | Optimized hydraulics and motor |
| IE4 motors | Ultra-premium efficiency |
| CUE compatibility | Dedicated frequency converter available |
BMSX – Complete High-Efficiency RO Package
| Parameter | Specification |
|---|---|
| Capacity | Up to 1,500 m³/day |
| Energy Consumption | As low as 2 kWh/m³ produced water |
| Pressure Exchanger Efficiency | Up to 98% |
| Materials | Super Duplex stainless steel, polymer, ceramic |
| Design | Compact with very small footprint |
BMSX System Components
| Component | Function |
|---|---|
| BMS hs/xl Pump | High differential pressure pumping |
| BMS hp Pump | Booster pump for high system pressure |
| Isobaric Pressure Exchanger | Energy recovery (up to 98% efficiency) |
| VFDs | Variable frequency drives |
| Sensors | Flow and pressure transmitters |
BMSX System Example
| Parameter | Value |
|---|---|
| Feed Flow | 100 m³/h |
| Pressure Feed | 70 bar |
| Recovery | 40% |
| Permeate Flow | 40 m³/h |
| Energy | 3.02 kWh/m³ |
| Energy Savings | 4.20 kWh/m³ |
Material Specifications
Standard Materials
| Component | Material | Grade |
|---|---|---|
| Main Flow Areas | Stainless Steel | 1.4539 (AISI 904L) |
| Stagnant Areas | Super Duplex | 1.4410 (SAF 2507) |
| Shaft Seal | Silicon Carbide/Resin Impregnated Carbon | High pressure design |
| Thrust Bearing | Ceramic and Carbon | High durability |
| Pump Bearings | NBR/LSR Rubber | Chemical resistant |
| Seal Rings | NBR/LSR Rubber | Chemical resistant |
BM Steel Qualities
| Grade | AISI Equivalent | Application |
|---|---|---|
| 1.4301 | AISI 304 | Standard applications |
| 1.4401 | AISI 316 | Improved corrosion resistance |
| 1.4539 | AISI 904L | High chloride environments |
Key Features & Benefits
Simplified Design
| Feature | Benefit |
|---|---|
| Easy Shaft Seal Access | Trouble-free maintenance |
| Easy Thrust Bearing Access | Quick service |
| Built-in Non-Return Valve | High pressure suitable |
| Built-in Thrust Bearing | No axial forces on motor shaft |
| No Motor Bearing Load | Simpler motor construction |
Performance Advantages
| Advantage | Description |
|---|---|
| High Efficiency | Energy savings across all models |
| Easy Maintenance | Simplified design for quick service |
| Extreme Durability | Duplex and Super Duplex construction |
| Very Small Footprint | Space-efficient installation |
| Easy Integration | Compatible with any water treatment system |
| Maintenance-Free Operation | With proper rinsing when not running |
Applications
Desalination
| Application | Pump Recommendation |
|---|---|
| Seawater RO | BMS hs + BMS hp (BMSX system) |
| Brackish Water RO | BMS hs or BM |
| High Chloride Content | Super Duplex construction |
| 24/7 Operation | BMS designed for continuous duty |
| Isobaric Energy Recovery | BMSX package |
| Turbocharger Systems | BMS hs or hp |
Water Reuse
| Application | Pump Recommendation |
|---|---|
| Reverse Osmosis | BM, BMS hs/hp |
| Nanofiltration | BM or BMS |
| Process Water Reuse | BM hp or BMS hp |
| Industrial Compliance | High-pressure BMS solutions |
| MLD/ZLD Strategies | BMS xl |
Industrial Pressure Boosting
| Application | Pump Recommendation |
|---|---|
| Water Supply | BM or BMS hp |
| Aggressive Liquid Circulation | BM (AISI 904L) |
| Lithium Mining | BMS high-pressure variants |
| High-Pressure Washing | BM or BMS |
| High Static Pressure Systems | BM hp or BMS hp |
Installation Configurations
Single Pump Installation
| Configuration | Application |
|---|---|
| Standard inline | Normal pressure boosting |
| With CUE VFD | Variable speed control |
| With sine-wave filter | Above 480V applications |
Multi-Pump Combinations
| Configuration | Result |
|---|---|
| Parallel | Higher flow requirements |
| Series | Higher pressure requirements |
| Parallel/Series | Both higher pressure and flow |
VFD Installation Requirements
BM with VFD
| Requirement | Specification |
|---|---|
| CUE Sizing | According to motor current (not power) |
| Current Margin | 10% higher than motor needs |
| T60 Motor | No additional margin required |
| Thermal Protection | Order with PT100 sensors |
| Output Filter | Always recommended |
BMS with VFD (PM Motor + CUE)
| Feature | Pre-Programmed Setting |
|---|---|
| Motor Data | Pre-loaded |
| Ramp-Up/Down | Set |
| Control Mode | Open Loop (no feedback) |
| Speed Control | Adjustable per system requirements |
Available Variants
| Variant | Description |
|---|---|
| High Pressure | Enhanced pressure capability |
| Industrial Motor (T60) | Temperature class T60 |
| 690 Volt | Industrial voltage |
| Over/Under-sized Motor | Custom motor sizing |
| Certificates | Various certifications |
| Clean and Dried | Pre-cleaned for sensitive applications |
| Base Frame | Mounting frame included |
| Different Paint Classes | Custom coating |
| Higher IP Class | Enhanced ingress protection |
| Standstill Heating | Cold environment operation |
| Customer Nameplate | Custom identification |
Connections
| Standard | Victaulic coupling |
|---|---|
| Alternatives | Available on request |
Why Choose Grundfos BM/BMS/BMSX?
Energy Efficiency
Simplified design ensures energy savings and efficient operation with up to 98% energy recovery efficiency in BMSX systems.
Extreme Durability
Constructed in Duplex and Super Duplex stainless steel (SAF 2507, AISI 904L) for seawater and brackish water applications.
High Pressure Capability
Discharge pressures up to 120 bar and inlet pressures up to 90 bar handle the most demanding RO and industrial applications.
Flexible Motor Options
Choose from Nidec PM, Siemens AC, Grundfos MG, or MGE motors with integrated VFD—all compatible with Grundfos CUE.
Complete System Solutions
BMSX provides a complete high-efficiency RO package with pumps, pressure exchanger, VFDs, and sensors for up to 1,500 m³/day capacity.
Virtually Maintenance-Free
Built-in thrust bearings, easy access design, and leak-free construction minimize service requirements.
Grundfos Accessories & Parts
Maintain optimal BM/BMS/BMSX performance with original components including shaft seals (SiC/Carbon), thrust bearings, pump bearings, seal rings, non-return valves, CUE variable frequency drives, sine-wave filters, MGE motor assemblies, pressure transmitters, flow transmitters, and isobaric pressure exchangers. We stock replacement parts for all model variants.
Select Grundfos Pumps
Browse our complete inventory of Grundfos BM, BMS, and BMSX industrial booster modules. As Grundfos Pump Suppliers in Dubai, we provide competitive pricing, technical consultation, system sizing support, and prompt delivery across Dubai, Sharjah, Abu Dhabi, Ajman, and all UAE locations.
Contact us for:
- Model selection based on flow, pressure, and application
- BM vs BMS vs BMSX recommendations
- Material grade selection (304, 316, 904L, Super Duplex)
- VFD and CUE sizing assistance
- BMSX complete RO system configuration
- Competitive quotations
- Delivery schedules
High Pressure, High-Grade Steel Industrial Boosting
The Grundfos BM, BMS, and BMSX booster modules deliver industrial pressure boosting with flows up to 400 m³/h, discharge pressures up to 120 bar, inlet pressures up to 90 bar, and motor power up to 355 kW. Featuring Duplex and Super Duplex stainless steel construction (AISI 904L, SAF 2507), built-in non-return valves and thrust bearings, VFD compatibility with Grundfos CUE, and the BMSX complete RO package with 98% efficient isobaric pressure exchanger for up to 1,500 m³/day desalination capacity at energy consumption as low as 2 kWh/m³—these are the ideal solutions for reverse osmosis desalination, water reuse, and demanding industrial applications requiring high efficiency and extreme durability.