QJB-W 2.5 kW Submersible Sludge Recirculation Pump with Auto-Coupling Guide Rail and Dual Mechanical Seals
Price:
Negotiable
MOQ:
1
Delivery Time:
15
Brand:
Lanjiang
Product Description
QJB-W 2.5 Submersible Sludge Recirculation Pump
Key Specifications
- Model: QJB-W 2.5 Submersible Sludge Return Pump
- Power: 2.5 kW | Current: 6.8 A | 50 Hz, 3-Phase
- Impeller Diameter: 400 mm | DN: 400 mm
- Auto-Coupling Guide Rail Installation for Tool-Free Maintenance
- Premium SKF/NSK Bearings (≥100,000 h lifespan)
- Dual Mechanical Seals: Tungsten Carbide / Viton + O-Rings
- IP68 Protection | Class F Insulation | Max Depth 10 m
- Anti-Tangle 3-Blade Swept-Back Impeller Design
- Suitable for Sludge Return, Recirculation & Denitrification in Small-Medium WWTPs
- ISO9001 & CE Certified | Made in Nanjing, China
Product Overview
The Lanjiang QJB-W 2.5 is a versatile submersible sludge return pump designed for small-to-medium wastewater treatment plants that require a dependable balance of hydraulic performance and energy efficiency. Rated at 2.5 kW (6.8 A), this model provides approximately 67% more power than the 1.5 kW variant, giving operators extra headroom for slightly deeper basins, longer return lines, or higher mixed liquor suspended solids (MLSS) concentrations.
Design Features
Impeller System
400 mm diameter 3-blade swept-back impeller with excellent anti-tangling and self-cleaning characteristics
Installation
Compatible footprint with QJB-W 1.5 for direct drop-in upgrades without modifying existing guide rail systems
Sealing & Bearings
Industrial-grade dual mechanical seals (tungsten carbide/Viton) and premium imported SKF/NSK bearings
Protection
IP68 enclosure and Class F insulation provide full protection against continuous submersion
Maintenance Advantages
The auto-coupling guide rail system allows the pump to be raised and lowered without tank entry, vastly simplifying routine inspection and maintenance while ensuring reliable 24/7 operation.
Quality Assurance: ISO9001 & CE Certified | Manufactured in Nanjing, China
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Nanjing Lanjiang Water Treatment Equipment Co., Ltd
Location
No.18, Xinyu Road, Hengliang Street, Luhe District, Nanjing, Jiangsu Province, China.
Contact Person
Ryan