1. Preparation Ensure that both high-pressure and low-pressure isolation valves are closed. Confirm that the equalizing valve is in the open position. 2. Line Flushing Open the drain valve. Slowly open the primary process valve to flush the impulse lines. Perform flushing at least twice. Close the drain valve after flushing. 3. Cooling and Air […]
Commissioning Procedure for Differential Pressure Transmitter Read More »
Differential pressure (DP) flow meters occasionally show no flow indication despite normal system operation. This article analyzes two real-world case studies and summarizes practical troubleshooting steps for diagnosing such issues. 📘 Case Study 1: No Indication in Ortho-Xylene Feeding Line Background:After restarting a benzene workshop post-maintenance, the DP flowmeter for ortho-xylene feeding consistently showed no
How to Troubleshoot a Differential Pressure Flow Meter with No Indication Read More »
Hose clamps (also known as clamps or hose clips) are essential components widely used in various industries, including automotive, plumbing, agricultural, and industrial systems, to secure hoses and piping. They provide tight sealing, reduce the risk of leakage, and maintain structural integrity. This article explores the different types of hose clamps, their common applications, and
Comprehensive Guide to Hose Clamps: Types, Applications, and Specific Sizes Read More »
Vortex flow meters are popular for measuring steam due to their durability and suitability for high-temperature and high-pressure conditions. However, improper installation or misuse can lead to significant accuracy issues, system failures, or long-term reliability problems. This article outlines the top 5 mistakes engineers and technicians often make—and how to avoid them. ❌ Mistake 1:
Top 5 Common Mistakes When Using Vortex Flow Meters in Steam Applications Read More »
1. Introduction Coriolis mass flow meters are precision instruments designed to directly measure the mass flow rate of fluids. Unlike volumetric flow meters, they are unaffected by temperature, pressure, and density changes, making them highly suitable for applications requiring accurate mass measurements. There are two main types of mass flow meters: Coriolis Mass Flow Meter
Coriolis Mass Flow Meter: Fundamental Technical Guide Read More »
1. Definition and Background HART (Highway Addressable Remote Transducer) protocol was developed by Rosemount in the mid-1980s and became an open standard in 1986. It represents a crucial transition from analog to digital communication in industrial automation. By superimposing digital signals over the conventional 4–20 mA analog signal, HART enables remote communication and configuration of
Understanding the HART Protocol: A Communication Standard for Smart Field Instruments Read More »
1. Introduction The target type flow switch, also known as a paddle flow switch, is a mechanical flow-sensing device composed of a target plate, sensing mechanism, and signal processing unit. It is widely used in industrial automation, water treatment systems, HVAC (Heating, Ventilation, and Air Conditioning), and refrigeration systems. 2. Working Principle The design is
📌 Background In a 200,000-ton/year Linear Alkylbenzene (LAB) production unit, pressure transmitters located at the fractionation tower outlet were frequently failing due to severe corrosion. The process medium contained high-temperature, moist hydrofluoric acid (HF), which quickly attacked the Monel diaphragm of the pressure transmitters. On average, the transmitters lasted only 2–3 days before showing drifting
Introduction In the food industry, stringent requirements are placed on equipment used in production processes to ensure product quality, safety, and hygiene. Vibrating rod level switches and tuning fork level switches play a critical role in this domain, requiring careful attention to material, performance, safety, maintenance, and regulatory compliance. This article outlines the specific demands
Requirements for Hygienic Applications of Vibrating Rod and Tuning Fork Level Switches Read More »
Cable tray installation must comply with specific technical standards to ensure electrical safety, system reliability, and long-term maintainability. This document outlines the key requirements for cable tray layout, installation, and fireproofing in industrial and commercial environments. 1. Route Planning and Layout Principles Coordinate with Building Structure: Cable tray routing should align with architectural design, avoiding
Technical Guidelines for Cable Tray Installation and Fireproofing Measures Read More »
