Asphalt pumps typically utilize shaft bearings machined from sintered silicon carbide (SiC) primarily due to the hardness of SiC, which allows the components to withstand wear during the pumping of aggregate solid media. Unfortunately, the limited dry‐running performance of SiC and its catastrophic nature of failure during thermal and/or mechanical shock events relegates its use […]
Sealless pumps use sleeve bearings typically machined from carbon graphite or sintered silicon carbide (SiC). The hardness of these materials allows them to withstand wear during the pumping of aggregate solid media. However, the limited dry-running performance of carbon graphite relegates its use to systems with minimal loads and constant lubrication. While SiC bearings have excellent […]
The chemical process industry uses glass-lined equipment due to its corrosion resistance against acids, alkalis, and other chemicals, as well as its smooth, anti-stick surface which allows for easy cleaning and sterilization. Glass-lined equipment is also chosen for a variety of chemical processes, such as fine aggressive chemicals, pharmaceutical products, agricultural products, polymers and metallurgical […]
If you are wondering what is keeping professionals in the wastewater industry ‘up at night’, this infographic paints a picture of the major concerns. The infographic explains what is believed to be the most significant climate issues, most significant sustainability issues, the major barriers to technological innovation, and a rating of water industry issues as […]
Several industrial processes, whether it be the refining of petroleum products, manufacture of pharmaceuticals or the treatment of wastewater, may require the use of dangerous or hazardous chemicals. Such hazardous chemicals include strong acids and caustics, like hydrogen chloride (HCl), hydrogen fluoride (HF), nitric acid (HNO3), sulfuric acid (H2SO4), potassium hydroxide (KOH) and sodium hydroxide […]
For decades, the U.S. Department of Energy has issued market-changing industrial electric motor regulations to improve efficiency. The most recent rules, which have gone into effect over the past two years, impact most equipment manufacturers and users. Pump manufacturers, in particular, need to understand the impact motor speeds, operating speeds, inrush currents, motor size and […]
A Practical Guide to Managing Pipe Stresses and Nozzle Loading by Utilizing Rubber Expansion Joints Pump engineers are justifiably concerned about the damaging effects of high nozzle loading. They are quick to point out that excessive loading will cause internal clearance issues, and in some cases, cracking to the pump casing. Unfortunately, this concern […]
There is great emphasis on efficiency in the world today, and the manufacturers and users of adjustable speed drives are certainly not exempt from this concern. Determining the best drive for a particular application can be a time consuming process which should include not only evaluation of performance and acquisition cost but also the cost […]
It’s no secret that the use of coatings in valves extends service life and helps improve operational efficiency as part of the pumping system, especially when used in conjunction with pump coatings. The issue, however, is that not all coatings are created equal – so the correct identification and specification of a coating based on […]
ASHRAE is the industry organization that sets the standards and guidelines for most HVAC-R equipment. They have published a chart that lists estimated life expectancy for various HVAC equipment. Complete the form below to download the ASHRAE chart of HVAC Equipment Life Expectancy. The chart includes a list of median life expectancy for the following […]
Explosion prevention is a primary safety concern for many industries that depend on electrically driven pumps. In the case of chemical plants, refineries, and hydrocarbon processors, there exists high potential for process and other liquids that emit explosive vapors. A deadly and destructive explosion is then only waiting for a tiny spark or sufficiently hot […]