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SAFETY VALVES

INTRODUCTION TO SAFETY VALVES Any pressurised system requires safety devices to protect people, processes and property. This tutorial details situations when overpressure may occur, the wide and often confusing types of device on offer, how such devices operate and the many codes, standards and approval authorities to note. Introduction to Safet​y Valves As soon as mankind was able to boil water to create steam, the necessity of the safety device became evident. As long as 2000 years ago, the Chinese were using cauldrons with hinged lids to allow (relatively) safer...
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What are Pneumatic Cylinders and Actuators?

Pneumatic cylinders, also known as pneumatic actuators, are the products used to provide linear or rotary motion and force to automated systems, machines and processes, for example in industrial applications. At the ‘business end’ of a pneumatics system, pneumatic cylinders and actuators work when compressed air is forced into the cylinder or actuator itself in order to move a piston housed within it. The ‘work’ is carried out by a mechanism attached to the piston, converting the energy created into practical use, for example a picking and placing system in factory automation. Pneumatic cylinders...
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What is a Filter Regulator?

A filter regulator is a combination of a filter and pressure regulator in a single unit. Both of these are also available as separate units. The benefit is that the single unit takes less space, reduces the chance of leaks due to less air connections and, in some cases, can improve the performance. How does a filter regulator work? Here, we must consider the basic working principles of the individual elements of the filter and regulator: Filter: The filter body has a construction that creates a cyclonic action for...
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Variable frequency drives

Frequency-controlled drive solutions ensure movement in almost all industries. The huge range of applications contrasts with a large number of drive components. With the help of a few basic explanations and tips for handling frequency converters, you can easily select the optimal drive system for your application in no time at all. What is a frequency converter or variable frequency drive? Frequency converters or also named variable frequency drives are electronic devices that convert a (more or less) fixed frequency and voltage into a variable frequency and voltage. This devices allow...
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Rotary Encoders

Rotary Encoders measure the number of rotations, the rotational angle, and the rotational position. Linear Encoders are also available to measure linear movement. IntroductionFeaturesPrinciplesClassificationsEngineering DataFurther InformationExplanation of TermsTroubleshooting Primary Contents What Is a Rotary Encoder?FeaturesOperating PrinciplesClassification What Is a Rotary Encoder? Rotary Encoders are sensors that detect position and speed by converting rotational mechanical displacements into electrical signals and processing those signals. Sensors that detect mechanical displacement for straight lines are referred to as Linear Encoders.
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