HW horizontal mixed flow volute pump

A horizontal single-suction volute mixed-flow pump designed for moving clean water and liquids with physical and chemical properties similar to water. The HW mixed-flow (volute) pump combines features of centrifugal and axial-flow machines to deliver high flow rates at moderate heads, making it suitable for farmland irrigation and drainage, industrial water supply and urban water drainage.

Key specifications

• Capacity: 180–3,665 m³/h
• Head: 3.0–20.7 m
• Drive power: 3–250 kW
• Typical conveyed medium: clean water or similar liquids
• Pump rotation: generally counterclockwise when viewed from the pump inlet

Construction and components

• Main parts: pump cover, impeller, pump body, pump shaft, shaft sleeve, bearing body (for shaft diameters ≤ 350 mm) or bearing frame (for shaft diameters ≥ 400 mm)
• Structural form: front-and-back door open type available (denoted by suffix “S”)

Drive and transmission options

• Direct coupling to electric motors or variable transmission
• Can be driven by electric motors (shaft coupling) or diesel engines (belt/pulley)

Features and benefits

• Compact size and light weight for easier installation and maintenance
• Simple, robust construction with straightforward maintenance access
• High hydraulic efficiency across mixed-flow operating ranges
• Available in multiple sizes; model numbers indicate inlet/outlet diameter and nominal head (example: HW-300-7S — “300” = 300 mm inlet/outlet, “7” = 7 m nominal head, “S” = structural form)
• Designed and manufactured to GB/T13008 and JB/T6667 standards

Typical applications

• Farmland irrigation and drainage
• Industrial water supply and process water circulation
• Urban water supply and drainage systems

Ordering notes

• Specify required duty point (flow and head), preferred drive type (electric motor or diesel), desired structural form (open front/back door if needed), and shaft rotation when placing an order
• Provide the model or sample working conditions so the correct impeller diameter and motor power can be selected to match the required duty for best efficiency and service life.