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Emergency Response Guide: How to Handle a Liquid Ammonia Leak

Instrumentation /

Liquid ammonia (NH₃) is a widely used industrial chemical, particularly in refrigeration systems, fertilizer production, and chemical processing. While invaluable in industry, it is toxic, corrosive, and hazardous under certain conditions. A leak can pose serious risks to people, property, and the environment, making it essential to have a clear, step-by-step response plan. This guide […]

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Protective Measures for Thermocouples Using Shaped Refractory Bricks

Thermocouples /

1. Introduction Industrial thermocouples often operate in harsh environments characterized by high temperatures, dust-laden gases, corrosive atmospheres, and mechanical impact. Under such conditions, premature failure can occur due to wear, corrosion, or thermal shock. Shaped refractory bricks provide a physical barrier and environmental isolation for the thermocouple sheath and sensing junction. By tailoring the brick

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Selection Guidelines for Control Valve Trim Materials and Accessories

Valve /

1. Introduction The performance, reliability, and service life of a control valve largely depend on the correct selection of trim materials and accessories. Inappropriate material or accessory choices can lead to corrosion, erosion, cavitation damage, and reduced control accuracy. This guideline provides practical selection criteria for various industrial process conditions. 2. Trim Material Selection Process

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Application of Radar Level Meters in Wet Deslagging Systems

Level meter /

With the advancement of industrial automation, the monitoring and control of various equipment have become increasingly important. In many industrial processes, accurate measurement and control of liquid levels are key factors for ensuring production efficiency and safety. Particularly in wet deslagging systems, liquid level control not only affects the stable operation of the system but

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Submersible Level Transmitter – Design, Installation, and Precautions

Level meter /

1. Introduction The submersible level transmitter is designed for accurate measurement of liquid levels in various industrial applications. Its robust structure and optimized probe design ensure reliable operation in both static and dynamic liquid conditions. The device operates by sensing the hydrostatic pressure exerted by the liquid column and converting it into a standard electrical

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Safety PLC vs. Standard PLC: What to Use, When, and Why

PLC /

1. Overview Programmable Logic Controllers (PLCs) are the backbone of industrial automation. When functional safety is part of the requirement, however, a Safety PLC is fundamentally different from a Standard PLC in design objectives, diagnostics, redundancy, and certification. Understanding these differences helps engineers select the right architecture, control lifecycle cost, and meet compliance. 2. Safety

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Contact vs. Non-Contact Industrial Instruments: Principles, Advantages, and Applications

Level meter /

1. Introduction In modern industrial automation and precision manufacturing, instruments play a crucial role in measuring, monitoring, and controlling various physical parameters such as temperature, pressure, and level.Based on the measurement method, industrial instruments can be classified into contact-type and non-contact types. Contact-type instruments acquire data by physically touching the target, whereas non-contact instruments measure

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Does a Safety Instrumented System (SIS) Need a Dedicated Operator Station?

PLC /

In process industries such as oil & gas, petrochemicals, and power generation, the Safety Instrumented System (SIS) plays a critical role in preventing hazardous events and protecting people, equipment, and the environment.One frequently asked question in SIS design is: Should the SIS have its own dedicated operator station, or can it share the same station

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Application of Radar Level Transmitters in Diazo Reaction Kettles

Level meter /

In modern industrial production, precise level measurement is not only crucial for enhancing production efficiency but also serves as the foundation for process safety and stability. With technological advancements, radar level transmitters, known for their unique non-contact measurement capabilities, have demonstrated exceptional value in complex industrial environments such as diazo reaction kettles. A diazo reaction

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Mass Flowmeter Troubleshooting: Common Pitfalls and How to Avoid Them (With Practical Cases)

Flow meter /

1. Preparation  Before starting troubleshooting work, contact the production unit to understand the fault phenomenon and operating status by checking historical trends, valve openings, and communicating with operators. Initially determine whether the problem is caused by the instrument or the process. – For general measurement loops: Obtain process permission before starting work. – For control

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