
Bqs Series Mining Flame- Proof Sewage Submersible Pump. Explosion-Proof Safety: Designed for methane and coal-dust environments with ExdIb grade certification. No Overload Design: Full head design ensures input power never exceeds motor rating across entire range. High Customization: Customizable voltage (380/660V), frequency (50/60Hz), and installation angles. Advanced Sealing: Features independent cascade mechanical seal and double-end faces for leak protection. Durable Motor: IPx8 protection with F grade insulation ensures long service life and cooling. Wide Application: Handles sewage with solids, sediment, and coal slime in mines and construction sites. Certified Quality: ISO9001, CE, and MA certified with 56 invention patents and 20+ years history. Flexible Delivery: Sea transport for large orders; air shipping available for urgent small quantities.