Horizontal Multistage Pump: Efficient and Reliable Solution for High-Pressure Applications

Horizontal multistage centrifugal pumps have the characteristics of high efficiency, wide performance range, safe and stable operation, low noise, long life, easy installation and maintenance, etc. They are used to transport clean water or other liquids with physical and chemical properties similar to water. They are mainly suitable for water supply and drainage of urban high-rise buildings, water for fire fighting, water supply and drainage of factories and mines, long-distance water delivery, water in production process circulation, HVAC circulation, domestic water, etc.

How Does a Horizontal Multistage Pump Work?

A horizontal multistage pump operates by passing fluid through several impeller-diffuser stages housed in a single casing. Each stage increases the pressure incrementally, enabling the pump to deliver high head (pressure) efficiently. Key components include:

Impellers– Rotating discs that transfer energy to the fluid.

Diffusers– Stationary components that convert kinetic energy into pressure.

Shaft & Bearings– Ensure smooth rotation and reduce friction.

Casing– Contains the stages and maintains structural integrity.

Main structure of horizontal multistage pump

D-type pump is installed horizontally. Except for the suction port of D16-60 pump, which is vertically upward, the suction ports of other pumps are horizontal. The discharge ports of all D-type pumps are vertically upward. The axial force is balanced by the balance plate. The shaft seal generally adopts packing seal, and mechanical seal can also be adopted according to user needs. Except for D85-67 and D155-67 pumps, which use sliding bearings and thin oil lubrication, the rest use rolling bearings and grease lubrication.

Product features of horizontal multistage pump

1. Advanced hydraulic model, high efficiency and wide performance range.
2. The pump runs smoothly and has low noise.
3. The shaft seal adopts soft packing seal or mechanical seal, which is safe and reliable, simple in structure, and convenient and quick in maintenance.
4. The shaft is a fully sealed structure, which ensures no contact with the medium, no rust and long service life.

Horizontal multistage pumps offer a reliable, high-efficiency solution for applications requiring steady high-pressure fluid transfer. Their robust construction, ease of maintenance, and versatility make them indispensable across multiple industries. Investing in a quality pump ensures long-term performance and cost savings.