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Proper Placement of Shut-Off Valves Relative to Flexible Connections in Storage Tanks

In industrial piping systems, particularly those associated with storage tanks, the placement of shut-off valves in relation to flexible connections is a critical design consideration. This decision significantly impacts system safety, reliability, and maintenance requirements. Below is a detailed exploration of the considerations, advantages, and best practices for deciding whether shut-off valves should be placed […]

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Differences Between American Class and European PN Flanges

Flanges based on the American Class and European PN standards are among the most commonly used in the engineering field. These two flange standard systems differ significantly in pressure ratings, application ranges, and structural designs. Understanding these differences is crucial for engineers and purchasing professionals in making informed decisions regarding equipment selection, installation, and maintenance.

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Comprehensive Analysis of Level Indicator Calibration and Testing

Level indicators, used for monitoring the liquid levels in tanks and vessels, play a crucial role in industries such as petrochemical, food and pharmaceuticals, hydropower, and storage management. The accuracy of their measurements directly impacts production safety, process control, trade settlement, and inventory management. Therefore, regular calibration and testing of level indicators is essential for

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A Brief Overview of Safety Barriers and Isolators

A Brief Overview of Safety Barriers and Isolators 1. Definitions of Safety Barriers and Isolators Safety Barrier A safety barrier is a device used in hazardous areas to receive signals from dangerous zones and limit the electrical energy in the circuit, thus ensuring intrinsic safety for explosion-proof purposes. Safety barriers are categorized into two main

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DCS Controller Performance Below Standard? These 3 Aspects Are Key!

In power plant DCS (Distributed Control System) applications, performance issues with controllers are often due to three critical factors: the controller’s processing cycle, controller specifications, and controller application functions. Therefore, during the DCS equipment selection phase, it is essential to ensure that the controller meets or exceeds the following parameters: 1. Controller Scanning Cycle Analog

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Quick Troubleshooting Guide for Instrumentation: Mastering the 5 Key Techniques to Quickly Locate Faults on Site and Move Beyond “Chip-Level Repair”

In stable industrial operations, instruments are like the “nervous system” — when faults occur, they can range from minor disruptions in parameter monitoring to complete production stoppages. Modern instruments, however, are no longer in the “discrete component era.” With increasing integration, the core task of on-site instrumentation technicians has shifted from “chip-level repairs” to quickly

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Why is the Same PLC More Stable in Others’ Systems? The Key Lies in These Details

In the world of instrumentation, theoretical knowledge is like the wrench in your hand—unassuming yet critical when you need it most! Whether you’re preparing for certification or simply working on the job, understanding electrical schematics, sensor principles, and troubleshooting logic is unavoidable. This series will be continuously updated, so by practicing alongside, you’ll be able

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How to Choose Separators for Hydrogen Production Systems: A Comprehensive Guide

In alkaline hydrogen production systems, separators play a crucial yet often overlooked role. Their primary function is to efficiently separate hydrogen gas from liquids (such as alkaline solution or water) at various stages, ensuring hydrogen purity, equipment safety, and system stability. The type of separator used depends on different operating conditions, and selecting the right

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How to Introduce Instrumentation Cables into Explosion-Proof Control Rooms

In high-risk industries such as petrochemicals, explosion-proof control rooms are critical barriers to ensure the safety of personnel and equipment. However, a seemingly basic question—how should instrumentation cables be introduced into these rooms—has sparked considerable debate in design practices. What do the regulations say about this? Beyond the controversial approaches, are there more standard and

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