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How Long Will Your Pumping Station Pump?
How long does a pumping station last? What does it cost to run it? Calculating life-cycle costs provides an analysis of purchase and usage costs over a station's lifetime. Here's how one engineer calculates life-cycle costs for a group of pumping stations in a water supply system.
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Best Bet for Bad Hair Days
Rag, grit, fat, and — surprisingly or not — hair account for the majority of pump failures and downtime in water and waste applications. Wastewater plants in the UK have installed more than 400 chopper pumps on tank mixing systems, resulting in fewer pump failures, and less need to clear pump blockages. In most cases, a pump pays for itself in a year.
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Put the Crimp on Corrosion
Seawater pumps suffer corrosion from galvanic effects or marine organisms, but corrosion can be minimized through proper material selection. Alloys that resist corrosion are expensive, but there are combinations of materials for seawater service that don't break the bank, yet lead to longer service life.
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The Ecocirc DC pump, a circulation pump that can be connected directly to photovoltaic cells, waits patiently until it has enough power, then starts. It checks every three seconds to see if it needs to alter its operating point on the voltage-current curve. The circ pump handles hot or cold water and water/glycol mixtures.
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Electric Motors Failing in Your Products?
Bluffton Motor Works
Bluffton Motor Works produces motors for tough applications where standard motors cannot survive. If your product operates in environments that are wet, corrosive, dirty, and/or in applications that are severely demanding of the motor, we have the technologies and experience to provide you with custom motors that will last.
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They Scream for Ice Cream
I scream, you scream, we all scream at wasted energy. At Unilever's ice cream factory in the UK, a pump energy audit found that in-place fixed-speed pumps were costing £16k per year to run, while lower-rated replacement pumps would do the job for only £7 K per year. What's more, Unilever opted for variable speed Grundfos pumps and saved an additional 20%. Payback period was 12 months.
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No Surprise: Maintenance Prolongs Pump Life
Pump maintenance works, all agree. But here's how to set up a preventive maintenance program to increase MTBF, improve pump reliability, lower maintenance costs, and improve uptime in your plant. The author says to concentrate on pump components that have the highest failure rates. There is a lot of paperwork involved, but it's worth it.
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Highly acidic or alkaline wastewater fluids from a petrochemical process usually require pumps made from stainless steel or exotic alloys. But periodic sulfuric acid concentrations up to 98% at one Chinese plant ruled out metal. Instead, they used tanks, pipes, and pumps made from thermoplastic materials such as polypropylene, PVC, CPVC, and PVDF.
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Shanghai General Motors built a brand new manufacturing plant, but the new HVAC system didn't work right. The system includes seven 2,000 ton chillers, and three 400 ton chillers. They called in Bell & Gossett to solve the problem. What did the consultants recommend? Variable speed pump controllers.
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All You Need to Know About Pumps
AxFlow Holding AB
We pledge to bring you the best pumps, best suited to your needs, sourced from the world's leading manufacturers and backed by the highest standards of service. As Europe's leading supplier of fluid handling and pump expertise, all you really need to know about fluid handling is how to contact us.
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Gain the Latest Project Management Credentials Online!
Villanova University Online
Gain the Latest Project Management Credentials Online!
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