Challenging plumbing systems demand a pressure boost

摘要

From office buildings to retail centers to hospitals and commercial structures, packaged booster pump systems help large facilities meet the unique pressure and flow demands required of their plumbing fixtures, specialized plumbing equipment, irrigation systems, and HVAC equipment. By increasing the water pressure, the booster pump moves the required amount of water from the building's water source to the plumbing distribution system. Each building type has varying flow demands and pressure requirements. When the water pressure from the local water source falls short of meeting the required flow pressures at the fixtures, a booster pump is required by code. Flow pressure consists of the supply pressure from the municipal water supply, the static height of the most remote fixture, the minimum residual pressure at the most remote fixture (up to 45 psi for blowout-type water closets with flushometer valve per the International Building Code), and friction losses through the booster pump, distribution system, and any pressure-regulating valve (PRV). PRVs are included on high-rise buildings where multiple pressure zones are required. Pressure losses through the PRVs must be accounted for when sizing the booster system.