A coastal municipality’s reverse osmosis (RO) desalination plant required a core high-pressure pump system that could withstand the constant, punishing effects of seawater. The existing pumps suffered from rapid corrosion, scaling, and frequent failures under pressures exceeding 800 psi. This led to high maintenance costs, unpredictable plant downtime, and jeopardized the reliable supply of fresh water to the community.
Arkstar engineered and supplied a dedicated ARKSTAR Series High-Pressure RO Pump system. The pumps were constructed with super duplex stainless steel and other corrosion-resistant alloys specifically selected for seawater service. The hydraulic design was optimized for maximum energy efficiency at the plant’s required flow and pressure, integrating with variable frequency drives (VFDs) for precise control and soft starts to protect the membrane system.
The Arkstar system delivered exceptional reliability and corrosion resistance, dramatically reducing unplanned shutdowns and extending mean time between maintenance. The energy-optimized design contributed to a significant reduction in the plant’s overall energy consumption per cubic meter of water produced, a critical operational cost factor. This ensured a continuous, dependable output of potable water, strengthening the municipality’s water security.