How to Select a Pump for Cofferdam Dewatering
Select a cofferdam dewatering pump using staged drawdown, continuing seepage, head, hose routing, sediment controls, alarms and standby capacity.
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Actualizaciones recientes de Borra que cubren la entrega de productos, aplicaciones técnicas e historias de proyectos del lado del mercado.
Select a cofferdam dewatering pump using staged drawdown, continuing seepage, head, hose routing, sediment controls, alarms and standby capacity.
Planifique la desaguación de emergencia del sótano de manera segura: compruebe la energía y la estructura, estime el volumen de agua, elija una bomba adecuada, verifique la altura de bombeo y la ruta de descarga.
Size an irrigation deep-well pump from zone demand, tested well yield, pumping water level, total head and the selected model performance curve.
A single-stage centrifugal pump uses one hydraulic stage, while a multistage pump uses successive stages to add head through the assembly. The appropriate choice depends on the required flow, head, liquid, installation and operating range. More stages do not automatically mean more flow, higher efficiency or better suitability. Select the duty from verified performance data, then compare mechanical and service requirements. This guide addresses clean-water transfer and boosting without assigning undocumented pressure, stage counts or operating limits to a Borra product. Separate...
Compare close-coupled and frame-mounted pumps by shaft arrangement, alignment, service access, replacement parts and the same hydraulic duty.
Compare NPSH available and required using suction pressure, level, temperature and losses, and verify the documented margin for the actual duty.
Find pump duty point from pump and system curves. Follow an illustrative calculation, compare operating cases and verify installed flow and head.
Read centrifugal pump head, flow, efficiency, power and NPSH curves, confirm their test conditions and check the installed system operating point.