The difference between vertical long shaft pump and submersible pump

When choosing a water pump, you may have such a question: What is the difference between a vertical long-shaft pump and a submersible pump? Let's answer this question below. In fact, vertical long-shaft pumps and submersible pumps are two different classification methods, and there is no comparability in the same direction.

Structural Differences

Insertion Depth:

Vertical Long-Shaft Pumps: These pumps typically have a longer insertion depth, making them ideal for applications such as offshore platforms or rivers where deeper water access is necessary. They often feature a first-stage double suction design, and if higher head is required, a multi-stage configuration can be utilized.

Submersible Pumps: In contrast, submersible pumps generally have a shorter insertion depth, usually operating below the medium surface level.

Classification:
Submersible pumps are categorized based on their working position, including standard submersible pumps and long-shaft submersible pumps.
Vertical pumps, including vertical high-speed pumps and barrel pumps, are classified according to their structural design. Notably, long-shaft submersible pumps fall into both categories, illustrating how these classifications can overlap.

Operational Insights

A submersible pump is a type of vertical pump. It is mainly used to determine the depth of the submersible pump and the medium to be transported. Since they are all long-axis pumps, they may cause large swings during operation, which makes later maintenance and repair more troublesome. The advantage of a submersible pump is that it is not afraid of leakage, and it is generally not easy to leak. Even if it leaks, it is in the liquid.

Choosing the Right Pump

When deciding between a vertical long-shaft pump and a submersible pump, customers should consider their specific needs. Understanding the characteristics and applications of each type will guide you in selecting the most suitable model.

As a long shaft pump manufacturer, we provide a range of options to meet diverse requirements. Explore our offerings to find the perfect pump solution for your application.