By Marianne Hojby, Alfa Laval Drain valves comprise up to 20 percent of all valves in a typical processing plant. But cleaning them is costly,...

In the first of this four-part article, we pointed out the importance of keeping contaminants away from lube oil in pump bearing housings. We...

It’s one thing to promise reliable performance under hazardous and demanding conditions, but what happens when a product is put to the test? A...

Mechanical seals can fail for many reasons, and vacuum applications present particular challenges. For example, certain seal faces exposed to vacuum can become starved...

By Nadine Kalt On the basis of vacuum technology, the plant manufacturer Tartler now offers several system solutions for degassing high- and low-viscosity materials. Primarily...

The support bearings of literally millions of machines are located at or near the ends of the shafts so supported. However, design, configuration constraints...

Conventional wisdom is to locate digester heating systems on or around the floor of the main digester. While this results in good initial heat...

Pumps that utilize a diaphragm for their mechanical force have been used since the mid-nineteenth century, and continue to be utilized in modern pumping...

Figure 1: Cutaway view of a pneumatic pump fitted with a PTFE diaphragm. Invented nearly 160 years ago, diaphragm or membrane pumps are used...

With the discoveries of large new natural gas deposits, including shale formations, competition is intensifying for LNG supply contracts, making it imperative that LNG...