NRSV Horizontal Self-Priming Side Channel Centrifugal Pumps For Seawater

NRSV Horizontal Self-Priming Side Channel Centrifugal Pumps The NRSV pumps are part of the North Ridge S Series - a range of cast horizontal self-priming side channel pumps renowned for their self-priming ability. They are primarily designed to handle hazardous clean fluids without the presence of abrasive solids, which may contain entrained gas. Fluids typically handled by this range of pumps include chemicals, low viscosity oil's, fuels and refrigerants which are handled under pressure or at low temperatures to prevent gasification at atmospheric pressure. They are also utilised for clean non-hazardous fluids which may be transferred at low flows and high pressures such as fresh water and seawater in pressure booster applications. Assembled utilising 2 different impeller designs, both work in conjunction helping the pump to behave in a unique way and similar to a standard centrifugal and multistage pump. A star shaped side channel impeller enables the handling of entrained gas with solid particles in suspension up to 0.5mm in size and the centrifugal impeller housed at the suction port acts as an inducer helping the pump to prime up to 7.4M. Both ensure the pump has a low NPSH and that liquids with up to 50% entrained gas are handled efficiently without causing vapour locking. A NPSH inducer stage also allow the pump to operate with lower than 0.5m of NPSH enabling the unit to completely empty tanks, and handle volatile fluids being transferred close to their boiling point. Its design allows for efficient operation, as well as being easy to maintain guaranteeing long-lasting reliability. The NRSV range are completely customisable with materials of construction altered according to application, with stages added or subtracted according to desired pressure or flow. The North Ridge S Features • High Self Priming Capability• Extremely low NPSH <0.5M or Less• Handle liquids with up to 50% entrained gas• ATEX Certified• Eliminates the requirement for expensive infrastructure when handling liquid gases.• Modular design reduces spare part holding and enables pumps to be scaled according to process needs• Multiple sealing options Product Summary • Side channel design• Designed to handle liquids, gases, and liquid-gas mixtures with up to 50% vapor• Low NPSH Requirement typically 0.5M• Self-priming up to 7.4M• High pressure at low capacity

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