An air-operated diaphragm pump (AODD) is a seal-less, positive-displacement pump that uses compressed air to drive flexible diaphragms and move fluid without rotating components. This design enables reliable handling of abrasive slurries, viscous fluids, corrosive chemicals, and solids-laden media while offering self-priming, dry-run tolerance, and inherent leak containment. These …
A visual “field guide” to the core pump categories that keep crude distillation units moving—matching pump types to refinery duties, operating severity, and hydrocarbon behavior.
Crude oil distillation is the central refining process that separates hydrocarbons into distinct fractions, such as gasoline, diesel, jet fuel, gas oils, and heavier residues, according to their boiling points. This process relies heavily on robust fluid handling to move raw crude, intermediate streams, and end products through heaters, towers, …
Catalytic cracking units operate at extreme temperatures, circulate abrasive catalyst-laden fluids, and rely on continuous, stable flow to support refinery throughput. Every pump connected to this process must withstand high thermal loads, erosive service conditions, and volatile hydrocarbons while maintaining predictable performance over multi-year operating cycles. Understanding which pumps are …
Hydroprocessing is central to producing cleaner, higher-value fuels, and the pumps that support these units operate under some of the harshest conditions found in refining. Hydrotreaters and hydrocrackers depend on precise, high-pressure circulation of feedstock, hydrogen-rich gas, and catalyst-laden streams to maintain efficiency and reaction stability. Understanding pump requirements for …
A “where they live and what they move” infographic that connects key FCC support flows to the pump types that keep conversion and fractionation stable.
Maintaining a stable temperature difference (ΔT) across heat exchangers is essential for efficient industrial heating and cooling loops. When flow rates fluctuate or loads shift, that temperature difference can widen or collapse, leading to poor heat transfer, equipment stress, higher energy use, and uneven process performance. Variable-speed drives (VSDs) provide …
Efficient circulation in high-temperature heat transfer loops depends on maintaining stable suction conditions at the pump inlet. As fluid temperature increases, vapor pressure rises, and fluid density decreases, reducing the margin between the system’s available suction head and the pump’s required suction head. Once this margin closes, vapor bubbles form …
Maintaining Cooling Reliability in Industrial Systems distortion, fluid breakdowns, and unplanned shutdowns. Cooling interruptions, caused by low tank levels, pump failures, fouled heat exchangers, or temperature runaways, can quickly escalate the situation. Automated cooling fail-safes ensure that critical limits are enforced even when conditions change faster than an operator can …
Pumping heat transfer fluid efficiently depends on pumps that can maintain stable circulation under varying temperature and viscosity conditions. The heat transfer fluid selected directly influences pump sizing, materials, seals, and overall reliability. Matching the fluid to the pump and designing for the actual operating temperature range lays the groundwork …
