# Stainless Steel Brushless Electric Water Pump OWP-BL400H-D2-21: Key Solution for Off-Grid Power Storage Thermal Management

The OWP-BL400H-D2-21 stainless steel brushless electric water pump is a high-performance cooling component designed to excel in **off-grid power generation and energy storage thermal management systems**, while also serving critical roles in data center server liquid cooling, AI computing center liquid cooling equipment, small marine engine/battery cooling, copper-containing component liquid cooling, and electric vehicle charging/swapping station liquid cooling.

### Core Advantages

1. **Durability & Longevity**: With a stainless steel water-contacting part and IP68 protection rating, it resists corrosion and dust/water intrusion, boasting a working life of over 20,000 hours.

2. **Stable Performance**: Operates at DC18V-32V (rated DC24V) with 400W±5% rated power, delivering ≥20m head at 3000L/h flow; PWM speed control enables flexible cooling adjustment.

3. **Comprehensive Protection**: Features reverse connection, no-load, locked-rotor, over-voltage, and under-voltage protection to prevent damage; high/low level signal feedback allows real-time status monitoring.

4. **Low Noise & Air Tightness**: Generates ≤60dB(A) noise at 1m (loaded), ensuring quiet operation; air tightness test at 0.35Mpa shows leakage <0.8mL/min for reliable performance.

5. **Wide Adaptability**: Functions in -40℃~85℃ working environment (relative humidity ≤90%) and handles -40℃~85℃ coolant; flange quick-connect design simplifies installation.

### Specification Table

| Parameter | Value |

|--------------------------|------------------------|

| Voltage Range | DC18V～32V (Rated: DC24V) |

| No-Load Max Speed | 5600rpm±30rpm (with antifreeze) |

| Rated Power | 400W±5% |

| Flow & Head | 3000L/h, ≥20m |

| Working Life | ＞20000h |

| Protection Rating | IP68 |

| Working Environment | -40℃～85℃, RH ≤90% |

| Coolant Temperature | -40℃～85℃ |

| Protection Functions | Reverse connection, no-load, locked-rotor, over/under-voltage |

| Air Tightness | 0.35Mpa test, leakage ＜0.8mL/min |

| Noise (1m Loaded) | ≤60dB(A) |

| Water-Contact Material | Stainless Steel |

| Speed Control | PWM |

| Inlet/Outlet Design | Flange Quick-Connect |

| Error Feedback | High/Low Level Signal |

Flow VS Head curve

PWM & Fault Feedback

Dimensional Drawings