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Part V: Root Cause Revealed?

Could it be that the liquid ammonia was entering the unit with bubbles of gas that caused the flowmeter to incorrectly measure zero flow and, in turn, cause the reactor to scram? Cooling the liquid ammonia feed reinforces this hypothesis because it reduced the number of scrams.

Key Considerations for Dry Gas Seal Performance

For turbo-compressor applications, the seal panel, the seal piping arrangements, and the seal vent system details are critical for reliability, performance, safety, and operation of dry gas seals.

Valve Regulatory Watch
Flow control and routine system shutdowns provide ongoing feedback on the effectiveness of the working system. However, designing and testing for emergency systems provides a unique set of challenges, which are more critical in light of a recent U.S. Executive Order involving chemical facility safety.
Q&A: A Roundtable Discussion on Flowmeter Calibration

Six fluid handling industry thought leaders weigh in with their insights and best practices on the dark science of flowmeter calibration.

QUIZ CORNER: Which Flowmeters Measure Inferentially?

Which of the following flowmeters infer the flow of fluid passing through the flowmeter? A. Coriolis mass; B. Magnetic; C. Orifice plate; D. Oscillating piston; E. Oval gear; F.  Thermal; G. Turbine; H. Venturi; I.  Vortex shedder ...
 

Understanding the Impact of Steam Cleanout on Thermowell Installations

This is the way we’ve always done it. Why worry about steam cleanout? If that is the way you tend to think about thermowell design, and you are involved with piping and thermowells that are exposed to steam cleanout, then as the old Ray Charles song goes, “I’ve got news for you.”

A Checksum Game for Industrial Cybersecurity
A strategy called “Defense in Depth”, which uses multiple security countermeasures to protect the integrity of the information assets in an enterprise. is a practical approach to industrial cybersecurity.
Validating  Remanufactured Control Valves
Remanufactured control valves can be produced with such precision and quality that they represent a viable alternative to new equipment. However, automatic control valves are not a “one size fits all.”

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FlowStream Blog

Movers & Shakers: Fluid Handling Appointments, Awards & Business Deals for July 2014

A digest of July 2014 business news & notes from around the fluid handling industry.

More

3 Factors That Kill Sensor Accuracy & When You Need To Calibrate

We get asked all the time, “How often should I calibrate my level/pressure sensor?” When it comes to sensors, there is the simple answer, and the long answer that explains the nuts, bolts, washers, and threads of calibration. More

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Since its launch in 1995, Flow Control® has been the only magazine dedicated exclusively to technologies and applications for fluid movement, measurement and containment. Twelve times a year, Flow Control magazine delivers award-winning original content to more than 36,000 qualified subscribers.

WHAT'S NEW

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FlowStream Blog

Movers & Shakers: Fluid Handling Appointments, Awards & Business Deals for July 2014

A digest of July 2014 business news & notes from around the fluid handling industry.

More

3 Factors That Kill Sensor Accuracy & When You Need To Calibrate

We get asked all the time, “How often should I calibrate my level/pressure sensor?” When it comes to sensors, there is the simple answer, and the long answer that explains the nuts, bolts, washers, and threads of calibration. More