Grundfos 10731952 - BM 3A-52N NBR | Booster Module | Multistage | Inline

Save $4,969.10
GrundfosSKU: 10731952

Price:
Sale price$9,645.90 Regular price$14,615.00
Delivery date to be confirmed on Sales Order
or Call for most up to date lead times. (781) 281-8905

Description

Grundfos — World's Largest Pump Manufacturer · Bjerringbro, Denmark
BM 3A-52N NBR · Submersible Booster Module
BM5.5HP380-400-415V3-Phase50 HzIP66Stainless steel

The Grundfos 10731952 (BM 3A-52N NBR) is a Submersible Booster Module. Submersible multistage booster pump for industrial filtration and water supply. Nominal performance: 13.2US gpm at 790.7ft. Rated 380-400-415V, 3-Phase, 50 Hz. Applications include Industrial water supply & transfer, Desalination, Municipal wells and more.

Power
5.5HP
Voltage
380-400-415V
Phase
3-Phase
Max Flow
13.2US gpm
Max Head
790.7ft
Max Pressure
1199.46psi
Grundfos
World's largest pump manufacturer — engineering and manufacturing in 17 countries since 1945
Industrial Grade
Built and tested to IEC and NEMA standards
Authorized Distributor
Genuine Grundfos product — full manufacturer warranty coverage
Expert Support
Technical help available — call (781) 281-8905 or chat
Why This Product

Genuine Grundfos Part

OEM component engineered and manufactured to Grundfos specifications. Maintains pump performance and warranty coverage.

Full Traceability

Genuine Grundfos parts carry manufacturer traceability from production through delivery. No counterfeit risk.

Authorized Source

PumpStop is an authorized Grundfos distributor. All parts are genuine — not aftermarket, not surplus.

Confirm Compatibility

Always verify part number against your pump model number and serial number before ordering. Contact PumpStop for parts identification assistance.

Technical Support Available

PumpStop technical team can identify correct parts from pump nameplate data, serial number, or model code. Call (781) 281-8905 or chat.

Contact for Availability

Parts availability varies. Contact PumpStop to confirm stock, lead time, and pricing before placing an order.

Model Information — BM 3A-52N NBR
Series: BM
Model Code: BM 3A-52N NBR
Impeller Material: Stainless steel
Technical Specifications
Model Number 10731952
Product Series BM
Series Description Submersible Booster Module
Power 5.5HP
Voltage 380-400-415V
Phase 3-Phase
Frequency 50 Hz
Motor Speed 2830-2860-2870rpm
Full Load Current 9.8-9.6-9.8A
Protection Class (IP) IP66
Nominal Flow 13.2US gpm
Nominal Head 790.7ft
Max Operating Pressure 1199.46psi
Max Fluid Temperature 104°F
Nominal Pipe Bore 42 mm
Pipe Standard PJE
Impeller Material Stainless steel
Applications
Industrial water supply & transfer
Desalination
Municipal wells
Drinking water treatment
Important Notices
Electrical Verify supply voltage, phase, and frequency match nameplate before installation: 380-400-415V, 3-Phase, 50 Hz.
Temperature limits Do not exceed max fluid temperature 104°F. Exceeding limits damages seals and motor insulation.
Dry running Do not run dry. BM pumps use the pumped fluid to lubricate the shaft seal. Dry running destroys the seal within seconds. Install dry-run protection on all automatic installations.
Maintenance Refer to the Grundfos Installation and Operating Manual (IOM) for correct installation, commissioning, and maintenance. Contact PumpStop for documentation.
Documentation
✓ Installation and Operating Manual (IOM) — BM Series
✓ Product Data Sheet — BM 3A-52N NBR
✓ Service Manual and Spare Parts List
Need the IOM, data sheet, or spare parts list? Contact PumpStop and we'll send it over.
Before You OrderConfirm model code, voltage, phase, and frequency match your installation. For sizing help, spare parts, or documentation, call (781) 281-8905 or chat with PumpStop.
Code for rubber NBR
Connection straight
Curve tolerance ISO9906:2012 3B
Enclosure class (IEC 34-5) IP66
Gross weight 247.0 lb
Impeller Stainless steel
IP Class IP66
Liquid max temp 104°F
Maximum liquid temperature 104 °F
Maximum operating pressure 1199.46 psi
Maximum outlet pressure 1189.31 psi
Maximum permissible inlet pressure 725.19 psi
Minimum efficiency index, MEI ≥ 0.7
Model D
Motor Stainless steel
n rpm 42 mm
Net weight 137.0 lb
P2 kW 5.5 HP
Phase 3
Pipe connection straight
Pipe connection standard PJE
Pump Stainless steel
Rated power - P2 5.5 HP
Rubber NBR
Service factor 1.15
Stages 52
Standard PJE
Start. 1 method direct-on-line

Motor Curves

Dimensional Drawing

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