Petroleum Refining

Below you will find white papers on topics involving process control and automation.

Intrinsically Safe Submersible Pressure Transmitter

WIKA's intrinsically safe submersible pressure transmitter model IL-10 has been designed for the highest requirements of level measurement. Owing to their high accuracy, reliability, and their excellent media resistance, it is the ideal solution for almost all level measurements in hazardous areas.

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HILCO Patented Dry Resin Ionic Exchange for Varnish Reduction

Varnish formation is a common problem in the lube and hydraulic systems of today's turbomachinery. The severity of the varnish formation can be aggravated by oil chemistry, hot spots in the lube oil system, and static discharge. Hilco's ionic exchange technology has proven to be an effective method in reducing varnish potential in many applications.

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Jamesbury Wafer-Sphere® Butterfly Valve Compared to Rubber Lined Butterfly Valve

Submitted by Don Wolff

The Jamesbury high-performance valve is a heartier concept than the rubber-lined version. The term 'high performance' when considering the butterfly valve means the valve will take full ANSI pressure ratings, shuts off 'bubble tight', has higher temperature ratings, and, through the use of design and materials, has a much higher cycle life (extending into the millions of cycles without failure or leakage).

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Using ROI to Prove the Benefit of Your Optimal System Design

Securing the go ahead for a system upgrade can be difficult in a competitive work environment, where every cost must be accounted for and validated. Getting your project noticed and approved when it's lost among a sea of competing projects—each one making a claim on finite resources—can seem an impossible task.

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Fluid Power - Introduction to Pressure: The Basics

Submitted by Russ Rochambeau, Engineering Manager, IFPS Hydraulic Specialist, Valin Corporation

When discussing fluid power, pressure is the basis for producing any kind of work.  Work cannot be achieved without pressure. To understand the finer points of fluid power, one must first understand the concept of pressure

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Gas Flow in Control Valves

Submitted by Jon Monsen, Ph.D.

The principal difference between the nature of the flow of gas and the flow of liquid through control valves is that liquids are incompressible, and gasses are compressible.

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Control Valve Flow Characteristics

Submitted by Jon Monsen, Ph.D.

Selecting a valve with the correct flow characteristic (the relationship between valve opening and flow capacity) can be as important as the selection of the valve size.

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HMIs: Beyond the Fixed Panel Interface

Submitted by Corey Foster || Valin Corporation

Factory automation mobility is not just about iPads. Companies of all sizes need to think about the software needed to push context-sensitive information to operators and managers.

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Portable or Dedicated Filtration?

Submitted by Tim Tritch

Populations Equipment packagers have an uncanny talent for squeezing major components into very small footprints, obviously to minimize floor-space requirements.

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OSHA's Standard Interpretation Letters

Submitted by Automation Engineering Staff

One resource that you may have overlooked is OSHA's collection of standard interpretation letters, which are OSHA's official responses to written questions about compliance with the agency's requirements.

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Should I use Pipe or Tubing?

Submitted by Parker Hannifin Corporation

Standard fluid line systems were for many years constructed from threaded pipe of assorted materials and were assembled with various standard pipe fitting shapes.

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What is Emissivity?

Submitted by Exergen

Emissivity is a surface property that determines how much radiation an object emits at a given temperature compared to a blackbody at the same temperature.

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