Industrial Pump Repairs: What You Need to Know

Industrial pumps are essential to keeping operations running. When one fails, the impact on production can be immediate. Understanding the most common causes of pump failure and what to expect from a repair service helps you act faster when something goes wrong.

Marley Flow Control has been installing and repairing industrial pumps across Australia since 2002. We repair both Marley brand pumps and equipment from a wide range of other manufacturers, and carry out laser alignment of industrial pumpsets as part of our service offering.

What is an Industrial Pump?

An industrial pump is a heavy-duty pump designed to move liquids over a distance at a required flow rate and pressure. Unlike standard pumps, industrial pumps are built to operate in harsh conditions and handle a wide range of fluids, including water, oil, petroleum, chemicals, slurries, sludges, wastewater, and food and beverage products.

Main Types of Industrial Pumps

Centrifugal Pumps - Centrifugal pumps use rotational force to move fluid. Liquid enters through the suction nozzle into the eye of a rotating impeller. The impeller vanes generate velocity, moving the fluid outward and through the discharge side of the pump.

Centrifugal pumps are commonly used in process, chemical, and mining industries, as well as water supply, fire protection, and sewage systems. They are also central to cooling tower circuits, where maintaining efficient water flow is critical. Marley Flow Control has extensive experience designing, installing, and repairing centrifugal pump systems in this context.

Positive Displacement Pumps - A positive displacement pump moves fluid by trapping a fixed volume and forcing it into a discharge pipe. Some designs use expanding and contracting cavities on the suction and discharge sides to draw fluid in and push it out.

These pumps are suited to applications requiring a consistent, controlled flow, particularly with high-viscosity fluids such as oils or paints. They deliver a steady output regardless of system pressure.

Common Causes of Industrial Pump Breakdowns

Cavitation - Cavitation occurs when pressure at the suction end of a pump drops below the vapour pressure of the fluid. The liquid begins to vaporise, forming air bubbles that collapse violently as they move toward the higher-pressure discharge side. The resulting shockwaves cause vibration and mechanical damage, progressively reducing pump efficiency and, if left unaddressed, leading to failure.

The best prevention is to specify a pump correctly for its application from the outset. Where cavitation is already present, there are often steps that can reduce it without requiring full pump replacement.

Vibration - Excess vibration accelerates wear across bearings, seals, and other components. Vibration can stem from system design issues, but shaft misalignment is one of the most common causes. Laser alignment carried out by a qualified technician resolves misalignment issues and can significantly extend pump service life.

Wear - Industrial pumps operate under demanding conditions and are subject to both mechanical wear and chemical degradation from corrosion. Fouling, where particles accumulate on internal surfaces, adds to this wear over time.

A consistent planned maintenance schedule is the most effective way to manage wear and catch problems before they become failures.

Industrial Pump Repair Services from Marley Flow Control

Marley Flow Control repairs both Marley brand pumps and equipment from a wide range of other manufacturers. Our team has experience working in confined spaces, at heights, and in remote locations.

We also carry out laser alignment of industrial pumpsets. Our team has successfully completed long laser alignments of up to four metres and provides a comprehensive report after every alignment showing the change achieved.

Contact Marley Flow Control for a free quote.