Clogged Pump Suction Pipe: Symptoms, Diagnosis and Maintenance
Diagnose a clogged pump suction pipe using pressure and flow evidence, safe isolation, blockage inspection, air-leak checks and prevention measures.
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Recent updates from Borra covering product delivery, technical applications and market-side project stories.
Maintenance of Submersible Pump: Inspection and Service Guide
Plan maintenance of a submersible pump using condition trends, safe removal, electrical tests, wear inspection, controls and recommissioning data.
Jockey Pump Controller: Settings, Sequence and Project Review
A jockey pump controller automatically starts and stops the pressure-maintenance pump so small leaks and normal pressure loss do not start the main fire pump. Its settings must coordinate with the fire pump controller, pressure-sensing line, pump curve, system pressure, and adopted fire-protection requirements. The jockey pump should start before the main fire pump and stop after pressure recovers, while the main fire pump's automatic-start behavior remains protected. Final settings and wiring require the approved design, listed controller data, responsible engineer, and...
Fire Pump Relief Valve: Purpose, Selection and System Review
A fire pump relief valve can refer to a small casing relief valve that prevents pressure buildup from heat when a pump runs at little or no flow, or a larger main pressure relief valve used only where the approved fire-protection design requires it. These devices are not interchangeable. Selection and settings must follow the adopted fire code and standard, the authority having jurisdiction, the listed equipment data, pump curve, driver behavior, and the system pressure limits. A relief valve must never...
End Suction Pumps: Working Principle, Selection and Project Checks
Understand end suction pumps and select them using duty point, system curve, suction conditions, materials, motor, alignment and commissioning data.
Submersible Dewatering Pump Selection for Construction and Drainage
A submersible dewatering pump is selected by matching the required drawdown flow, total dynamic head, solids and abrasiveness, minimum operating depth, cable and power supply, and the site's duty cycle. It should not be chosen from outlet size or motor power alone. Establish how fast water enters, where it can legally discharge, and how the water level and hose route will change. Then plot normal and worst-case duties on a certified pump curve, verify motor loading and cooling, and specify level controls,...
Types of Well Pumps: How to Match Depth, Flow and Water Supply Duty
Compare types of well pumps by pumping water level, flow, head, casing, yield, water quality, power, installation and maintenance access.
Pump for Septic Tank: Selection, Solids, Controls and Installation Checks
Select a pump for septic tank service using liquid stage, flow, head, solids, chamber levels, controls, alarms, access and commissioning checks.