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Basics of Ground Loops

S Bharadwaj Reddy
A ground loop is an undesirable current path in an electrical circuit. Ground loops occur whenever the ground conductor of an electrical system is connected to the ground plane at...

Field Instruments Selection Aid

S Bharadwaj Reddy
Operating Conditions and Requirements on the Measuring Point When a New Field Transmitter installation is being planned, measuring point / tapping point to be selected and certain requirements must be satisfied in order for...

What is Double Block and Bleed Valves ?

S Bharadwaj Reddy
What is Double Block and Bleed Valves ? API 6D defines a double-block-and-bleed valve (DBB) as a “single valve with two seating surfaces that, in the closed position, provides a...

Important Factors Consider during Piping Design

S Bharadwaj Reddy
Tubular products are termed ‘tube’ or ‘pipe’. Tube is customarily specified by its outside diameter and wall thickness, expressed either BWG (Birmingham wire guage) or in inches or in thousands....

What is an O-Ring?

S Bharadwaj Reddy
What is an O-Ring? An O-ring is a torus, or doughnut-shaped ring, generally molded from an elastomer, although O-rings are also made from PTFE and other thermoplastic materials, as well...

Instrument Tube Fitting Installation – Part 1

S Bharadwaj Reddy
Tubing vs. Pipe Standard fluid line systems, whether for simple household use or for the more exacting requirements of industry, were for many years constructed from threaded pipe of assorted...

Instrument Tube Fitting Installation – Part 3

S Bharadwaj Reddy
Common Causes of Imperfect Bends Figure A shows an ideal bend. Bends with little or no flattening are produced when correct equipment and methods are employed; when proper consideration is...

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