Tag: December 2007 Issue
These items have all been tagged with the tag "December 2007 Issue", You can see other tags in the Tag CloudOur September column focused on considerations for applying mechanical seals in the very high solids content slurries found in the mineral and ore processing (M&OP) industry. In virtually any industry, you can encounter a sealing application that can be classified as slurry service. These applications can challenge mechanical sealing know-how and, if successful, optimize overall plant meantime between failures (MTBF).
Pumps & Systems, December 2007
Industrial processes that manufacture, transfer, and distribute a variety of liquefied natural gases, from propane to oxygen to ammonia, require components to protect both the piping system and the pipe supports from the extremely cold temperatures. Pipe supports and piping that are not insulated may become brittle and crack, posing high risk to the piping and structural components.
Pumps & Systems, December 2007
Repairing multistage pumps has its own nuances and challenges. While compromising quality on single stage smaller pumps is never a good idea, a careful and methodical approach to multistage pump repairs is even more critical. The entire process is complex, but it can be best summarized in seven fundamental steps (with accompanying photos to illustrate):
Pumps & Systems, December 2007
A metering pump is a positive displacement pump having the ability to deliver an accurate measure of liquid. This accurate amount of fluid being pumped produces a precise flow rate, either manually or automatically.
Pumps & Systems, December 2007
The Essence of System Vibrations
The dynamically loaded structural vibration system assumes its own unique natural frequency based on stiffness and mass. The design engineer's duty and responsibility is to analyze the proposed system to determine the resulting natural frequencies and the quality of the system. The engineer (designer) can then modify the design to achieve the required performance prior to construction, before the fact (on paper), not after the fact when the maintenance issues can become overwhelming.
