Handling severe heat in industrial processes usually points engineers toward exotic alloys. They work, but they drive costs up fast.
We take a different approach. By combining refractory lining with a water-cooled shaft and disc, you get a reliable solution built for high-temperature service — without the heavy price tag of full exotic construction.
Why This Design Works
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Refractory lining shields the body from direct heat.
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Water-cooled shaft and disc stabilize critical areas that would otherwise fail.
Together, these features create a cost-effective alternative that still meets the performance demands of severe service.
Hydrostatic Pressure Testing
Every water-cooled shaft and disc assembly goes through hydrostatic pressure testing before leaving our shop.
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The cooling passages inside the shaft and disc are filled with water.
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The system is then pressurized to a level higher than its normal operating pressure.
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Once pressurized, the assembly is sent through the project specific test duration time and carefully inspected for any sign of leakage at welds, joints, or passageways.
Because water is virtually incompressible, it’s the safest medium to use for this type of test. If there were a failure under air or gas, the stored energy could release violently. With water, even at high pressure, the risk is much lower — making it both safe and effective.
What You’re Seeing in the Video
When you watch the test, you’ll notice gauges monitoring pressure and water surrounding the test piece. What’s happening is simple but critical:
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Sustained Pressure – The assembly is held under pressure for a defined time period to prove it can maintain integrity without a drop.
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Leak Check – Every weld and cooling passage is monitored. Even the smallest leak would result in a failed test.
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Confirmation of Reliability – Passing this test confirms that the water-cooling system will operate safely in extreme heat, keeping the shaft and disc stable in service.
Why Hydrostatic Testing Matters
This isn’t just a box to check. It’s a guarantee:
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No hidden flaws – If there’s even a pinhole in a weld, hydrostatic testing will find it.
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Real-world proof – The assembly isn’t just engineered for performance — it’s physically proven before it’s ever installed.
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Peace of mind – For operators, knowing that the cooling system has already been tested beyond its limits means one less thing to worry about in high-temperature service.
