Zhengzhou Shenlong Pump Industry CO.,Ltd

Zhengzhou Shenlong Pump Industry CO.,Ltd

High-Flow and High-Head QBH Pump for Offshore Seawater Transfer

2026 07/21

For a European marine project, the customer needed a submersible pump capable of handling a very large seawater flow while maintaining high discharge pressure.

A standard submersible pump could not meet both requirements. We therefore supplied a 900QBH2250-112/2 high-flow, high-head seawater pump.

The unit is designed for:

  • 2250 m³/h rated flow
  • 112 m rated head
  • 1250 kW motor power
  • 1450 rpm operating speed
  • Two-stage hydraulic configuration

The QBH pump series is used for demanding applications where large water volume and high pressure are required at the same time. In this project, the two-stage design allowed the pump to achieve the required head without reducing the customer’s specified flow capacity.

The pump was produced in 2507 Super Duplex Stainless Steel for direct seawater service. Its high mechanical strength and resistance to chloride attack make it suitable for offshore and marine installations.

This project shows how a customized QBH submersible pump can support large offshore seawater transfer systems where hydraulic performance and material reliability are equally important.