09272016Tue
Last updateTue, 27 Sep 2016 7pm

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Caution: Horizontal Stem Installation Ahead

When it comes to linear valve installations, gravity is our friend. The most common and preferred installation for these valves is to have the stem in the vertical position. This orientation, with an assist from the laws of gravity, aligns the stem to the disc and the disc to the body guides, which keeps everything in proper orientation throughout the open and closed cycles.


Fugitive Emissions—Issues and Opportunities

Fugitive emissions, ppm, consent decrees and low-E packings: These are the words that make up a lexicon unknown in the valve repair world 25 years ago. This new vocabulary is one that anyone who deals with valves needs to learn so that the industry is prepared for what’s to come.

For Want of a Nail: Engineering Process Safety

“For want of a nail, the kingdom was lost,” is the final line of an old proverb that reminds us that seemingly unimportant acts or omissions can have grave consequences. An infamous example of this exists in one of America’s most tragic incidents, the 1986 Challenger shuttle disaster.

New, Surplus, Repaired or Rebuilt?

15 spr maintenance2If you’ve been around valves for a while, you’ve likely heard the term “new surplus,” plus a few other saltier descriptions for valves that are offered for sale. A joke in the industry concerning the phrase “new surplus valves” goes like this: In describing his valve product, the shifty valve salesman said it is new surplus: “surplus to me and new to you.”

Tightening Bolts Can Help Tighten Budgets

15 wnt maintenanceIn highly-corrosive chemical and refining applications where in-line and atmospheric sealing is critical, sleeved plug valves provide essential defense against leaks and fugitive emissions. Because they typically face harsh conditions, repair or replacement is an important consideration. However, before those steps have to be taken, there’s a simple step to make them last longer: tightening the bolts.

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