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Recent updates from Borra covering product delivery, technical applications and market-side project stories.

Jockey Pump Controller: Settings, Sequence and Project Review
Borra Pumps

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
Borra Pumps

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...