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Created on 03.04

How long do ball valves last?

You've probably heard it. Ball valves are built for durability. And it's true - most of them have proven themselves well.
But how long exactly do ball valves last? The answer depends on the material they are made of, how they are used, and the type of system they are installed in.
Some last for decades, others fail within a few years. It all depends on the operating conditions, not just the valve itself.
A diagram showing wear factors to answer the question of how long ball valves last depending on the flow path. A diagram showing wear factors to answer the question of how long ball valves last depending on the flow path.
Do ball valves fail?
Yes, they do. It may take some time, but no valve is eternal. Over time... the components of a ball valve wear out: valve seats, seals, stems. And if the system overheats or becomes contaminated, these parts wear out faster.
Here's how you'll know something is wrong:
The handle is difficult to turn.
It does not close completely.
You have detected a slow leak at the stem or body connection.
Under the influence of the flow, it begins to vibrate or make noise.
You take it apart, and the internal parts look worn or corroded.
That's when the question of repair arises—or perhaps replacement.
What factors affect the service life of a ball valve?
There is no universal answer. But here are the main factors determining the service life of a valve:
Material
A stainless steel ball valve will last longer than a brass or plastic one. It simply withstands pressure and high temperatures better.
Flowing medium
Is it just clean water? Ideally. If it's steam, slurry, or chemicals, expect more wear.
Frequency of use
Valves that move daily will last less than those that remain open or closed. But leaving a valve unattended for years can also create problems — seals dry out, parts seize up.
Pressure and temperature
Higher pressure and higher fluid temperature = shorter service life. It's just physics.
Maintenance
Neglected valves fail quickly. Minor maintenance can significantly extend their service life.
What is the typical service life of a ball valve?
In ordinary plumbing systems, a ball valve can last 8-10 years. In clean, low-pressure systems, it can last 20 or 30 years.
In some industrial installations, they work even longer, especially if the valves are periodically maintained. But as soon as a ball valve starts to leak or gets stuck, its service life begins to count down.
Ball valve: repair or replacement?
Sometimes it can be fixed. Sometimes it's better to start over.
Repair is likely possible if:
The valve has a three-piece construction.
The seals or seats are worn, but the body looks normal.
You have access to spare parts.
Replacement is necessary if:
It is a sealed, non-serviceable valve.
The body has cracks or severe corrosion.
It has been in operation for a long time.
Replacing the valve may be more expensive initially, but in production environments, preventing downtime usually pays off.
Stainless steel ball valves last longer.
If long service life is important to you, you need stainless steel. A stainless steel ball valve withstands high temperatures, pressure, and corrosive liquids better than most other materials.
In the chemical industry or high-pressure systems, these valves are standard.
They are resistant to rust, withstand impacts, and do not deform under load. With periodic inspections and good condition, their service life can be 20-30 years.
Ball Valve Maintenance: Simplicity is the key to success
To extend the service life of the valve, you don't need a whole maintenance crew. Just follow these rules:
Turn the valve from time to time, even if it's not in use.
During system checks, you need to check for leaks.
Keep open valves clean and dry.
Lubricate the stems where necessary.
Monitor the valve after pressure surges or temperature changes.
A few minutes every few months can extend the valve's life by years.
When it's time to replace a ball valve
There comes a point when it's more sensible to replace the valve. If repairs haven't helped – or if the valve shows signs of wear – don't risk operating it further.
And what about safety-critical systems? Replacement is not optional. Leaks or malfunctions can lead to a complete production shutdown.
Summary: Key factors affecting the service life of a ball valve.
With proper adjustment, material selection, and maintenance, ball valves can last 10, 20, or even 30 years. But if they are operated under high load conditions or never inspected, problems can arise sooner.
Pay attention to warning signs. If a ball valve starts to leak or gets stuck, it's time to act. A quick repair of the ball valve may help. Or it might be better to replace it completely.
At STARRY, we test every valve for resistance to pressure, load, and time. Our valves comply with EN12266, DIN, and other standards. API standards.
We designed them for a long service life and support them with almost forty years of experience in valve design.
If you need a ball valve designed for long-term operation, contact us. Let's get everything right from the start!

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