Sigma-HSE’s Post

The Liquid Conductivity test allows for correct handling procedures to be established. A material with a low conductivity would be considered to be insulating and therefore stop migration of charge. With a charging mechanism present, accumulation of potentially hazardous levels of charge may occur. Read here - https://lnkd.in/g8ktkT3W #liquidconductivitytest #processsafetytesting #processsafety #sigmahse #processsafetystudy

Leakage testing in RECUTECH is carried out automatically at a specialized measuring centre. Testing works by pressurizing one of the heat exchanger’s branches to a specified pressure and then measuring its subsequent drop, i.e. the air leakage of that particular branch.

What is fusible plug? A fusible plug is a safety device commonly used in process plants, particularly in boilers, pressure vessels, and other equipment that operates under high pressure or temperature. The main purpose of a fusible plug is to prevent catastrophic failure or explosions by acting as a pressure and temperature relief mechanism. Fusible plugs are designed to melt at a specific temperature. When the temperature in the equipment exceeds the safe operating limit, the plug melts, creating an opening through which the pressure or steam can escape, thereby preventing a potential explosion or equipment failure.

#Flame_Arrester_Breather_Valve Flame Arrester Breather Valve (FAB) are designed to protect tanks and process equipment from excessive pressure and vacuum and from atmospheric deflagrations. FAB Valve series conserve product and reduce pollution from evaporation losses. It functions as a combined end-of-line pressure/vacuum relief valve and a deflagration Flame Arrester. The pressure relief valve prevents vapour losses up to the specified set pressure and ensures reliable protection against excessive pressure The vacuum relief valve prevents the ingress of air up to the specified set vacuum pressure and ensures reliable protection against excessive vacuums The flame arrester element further protects the equipment against atmospheric deflagrations. In the event of external ignition, the flame arrester prevents flame transmission from entering the piping systems and tanks.

Minimum Ignition Temperature (MIT) determines the temperature at which the spray dryer head should be maintained for its safe operation. It is used to determine the safe surface temperature of any equipment in a combustible environment. Learn for more - https://lnkd.in/gqG8PNzi #minimumignitiontemperature #MIT #processsafetytesting #processsafety #sigmahse #sigmahseservices

☢ Fired Heater Fired heaters use controlled combustion of fuel to heat a process fluid. The heat of combustion is transferred to the process fluid in the radiant section. While any type of process involving combustion carries hazards and safety concerns, the hazards are even greater when a combustible process fluid is heated inside tubes. Hence, fires and explosions are significant risks of fired heater operation. 🔷 Overheating: Tube failures due to flow loss or fouling can lead to coke formation and thermal fatigue. Prolonged operation at high temperatures can weaken tube integrity. 🔷 Corrosion: Unusual conditions accelerate internal and external corrosion, compromising tube integrity. Corrosive waste fuel streams can cause external corrosion. 🔷 Erosion: High fluid velocity or solid particle impingement can erode tubes, promoting corrosion. Removal of protective passive layers can accelerate corrosion. 🔷 Restricted Expansion: Inadequate clearance for thermal expansion may cause tube cracking or failure. Material changes require careful consideration of thermal expansion coefficients. source: https://lnkd.in/dTfCQZ3Y #FiredHeaterSafety #ProcessSafety #CombustionRisks #CorrosionControl #ThermalExpansion #WorkplaceSafety #InstrumentEngineering

This high pressure reactor system is designed for processes involving high pressures and temperatures. Safety features guarantee safe reactions under highest pressure. Electrical heating with built-in automated tap water cooling for fast and precise temperature control.The stainless steel reactors ensure high corrosion resistance. The magnetic stirrer drive ensures efficient mixing and stirring of the process media as well as excellent heat transfer.

COMBUSTIBLE DUST - PART 17 Why Dust Layers Cause Ignition in Electrical Devices: Layers of conductive and combustible dust can become an ignition source in electrical equipment because they act as an insulator, causing the equipment to overheat. Overheated components can ignite the dust, leading to fire or explosion. Proper Hazardous Area Classification (Zone/Hazardous Location) is crucial for effective hazard identification in a plant. For example, an electrical motor and its junction box installed in Zone 21 must be assessed carefully. NFPA 499:2017 (4.1.4.2): Combustible dust layers insulate electrical equipment, leading to overheating and potential ignition of the dust. NFPA 70:2017 (4.30.16): Motors exposed to dust accumulation should be properly enclosed to prevent overheating that could lead to dangerous temperatures. Questions: 1. Heat Transfer in Motor Fins: What is the formulation to calculate heat dissipation in electrical motor fins? 2. Dust Ignition Mechanism: How does overheating ignite a dust layer, and what indicators show effective ignition potential? 3. Preventive Measures: How can this risk be mitigated? #CombustibleDust #FireAndExplosion #DustHazardAnalysis #NFPA

It is possible that cavitation occurs in a compressor? Yes, cavitation can occur in a compressor under certain conditions. Cavitation is the formation and collapse of vapor bubbles in a liquid when the local pressure drops below the vapor pressure of the liquid. In a compressor, cavitation can happen if the pressure drops too low in the fluid being compressed, causing bubbles to form. When these bubbles collapse, they can cause damage to the compressor components due to the high pressures and temperatures generated during the collapse. Cavitation in compressors is more commonly associated with pumps, where it can lead to erosion of the pump components and reduced efficiency. However, in certain situations such as in multi-phase compressors or when compressing liquids that are near their vapor pressure, cavitation can potentially occur in compressors as well. To prevent cavitation in compressors, it is important to design the compressor system properly, ensure that the fluid being compressed remains above its vapor pressure throughout the compression process, and maintain adequate inlet pressures to prevent localized pressure drops that could lead to cavitation. Regular maintenance and monitoring of the compressor system can also help prevent cavitation-related issues.

Safeguard your storage tanks with PROTEGO® VD/TS, Pressure/Vacuum Relief Valves with integrated Flame Arrester! Did you know? Relief valve and flame arresters installed in combination should be tested together to verify flow capacities and flame transmission prevention. Benefits of the PROTEGO® VD/TS: ✅ ATEX 2014/34/EU approved ✅ Flow tested on TUV Certified flow test facility. ✅ Optimized weather hood for severe conditions ✅ Option for electrical heating installation ✅ Exceptionally maintenance-friendly ✅ 10% overpressure technology to reduce venting cycle frequency. ✅ Very high seat tightness for reduced emissions