Comparison Between 24V DC and 220V AC Solenoid Valves
September 7, 2025
1. Introduction Solenoid valves are widely used actuators in industrial process control. Their performance and safety characteristics are closely related...
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Level Instrument Selection Guide: Principles, Applications, and Best Practices
September 7, 2025
1. Definition and Classification of Level In industrial processes, level (liquid level, bulk solid level, and interface) is one of...
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Understanding the Components of a Safety Instrumented System (SIS)
September 6, 2025
Safety Instrumented Systems (SIS) play a crucial role in ensuring the safety and reliability of industrial processes. These systems are...
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Operational Management and Control Optimization: Beyond Tools to Real Capability
September 6, 2025
Introduction In operational management and control optimization, I have always emphasized the importance of cross-departmental collaboration and collective problem-solving. A...
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The Importance of Gas Leak Detector Calibration and Verification Methods
September 6, 2025
Abstract Gas leak detectors are critical instruments for ensuring workplace safety, preventing environmental pollution, and protecting human health. However, their...
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Rethinking PID Loop Tuning: From Isolated Parameters to System Perspective
September 6, 2025
1. Traditional View of PID Tuning In the conventional approach, PID loop tuning is often treated as an isolated single-input,...
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Technical Specification and Application Guide for Instrument Insulation Boxes
September 6, 2025
1. Introduction Purpose of instrument insulation boxes in harsh environments. Common problems caused by improper selection (temperature instability, water ingress,...
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Surface Roughness of Flange Sealing Faces: Principles, Types, and Practical Guidelines
September 6, 2025
1. Role of Surface Roughness in Flange Sealing Surface roughness of the flange sealing face is a critical factor in...
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Are Most Flowmeter Problems Caused by Installation?
September 6, 2025
A Practical Guide to 9 Common On-Site Installation Issues Flowmeters are indispensable instruments in modern industrial processes. Yet, many measurement...
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Understanding Why a 250Ω Resistor is Needed in HART Communicators
September 5, 2025
HART (Highway Addressable Remote Transducer) communicators play an essential role in industrial process control by facilitating two-way digital communication over...
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Instrument Selection in Chemical Plants: Intrinsically Safe or Explosion-Proof?
September 5, 2025
1. Introduction In the design and operation of chemical installations, the choice of instrumentation is not only related to production...
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What is a Surge?Technical Guide for Industrial Instrumentation
September 5, 2025
1. Definition of Surge A surge (also called a transient overvoltage/overcurrent) refers to a short-duration pulse that appears on power...
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Hazards of High-Risk Process Units in Chemical Enterprises
September 5, 2025
Introduction High-risk process units in the chemical industry refer to facilities that involve highly reactive chemical processes (e.g., nitration, sulfonation,...
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Common Types of Industrial Relays and Their Applications
September 5, 2025
Introduction Relays are essential components in modern industrial automation and power systems. They act as switching and protection devices, enabling...
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Why Do Wear-Resistant Ball Valves Fail Prematurely with Internal and External Leakage? Root Causes Beyond Sealing Issues
September 5, 2025
1. Introduction Wear-resistant ball valves serve as critical control points in industrial fluid transportation systems. Once failure occurs, even minor...
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Why Does a Flat Metal Diaphragm in a Transmitter Exhibit Linear Characteristics?
September 4, 2025
1. Introduction In pressure and differential pressure transmitters such as the 1151 series, the measuring diaphragm is made of a...
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Selection of Rotameters: A Detailed Guide
September 4, 2025
Rotameters, as flow measurement instruments, are essential for various applications where on-site flow indication or remote alarm and measurement are...
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Why Sealing Manual Valves on Pneumatic Actuator Air Lines Is Impractical
September 4, 2025
1. Background and Standard Requirement In the petrochemical industry, design standards directly affect operational safety and reliability.According to SH/T 3005-2016...
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Technical Specification: Standard Venturi Flowmeter Diameter Requirements
September 4, 2025
1. Principle of Venturi Flow Measurement The Venturi flowmeter operates on the Venturi effect, a fluid dynamics phenomenon described by...
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Causes and Troubleshooting Procedures for Boiler Drum Differential Pressure Transmitter Deviations
September 4, 2025
Abstract The differential pressure (DP) transmitter for boiler drum level measurement is a critical instrument for ensuring safe and stable...
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