XRHC Close Coupled Self Priming Centrifugal Pump - Test Rig Pumps Apllication

XRHC Close Coupled Self Priming Centrifugal Pump The XRHC is the self-priming version of the XHC close coupled end suction centrifugal pump. Either an electric or air vacuum priming pump is fitted to the body to enable full self-priming capability. This variation has the full ability of the standard version; however, it can only be used for clean liquids such as sea water and fresh water containing no solid particles. If required, this pump is available in a vertical version. The XRHC close coupled, end suction, single stage horizontal centrifugal pump is standardised to EN 733/DIN 24255 and can be used for a vast range of applications in the industrial and marine markets. Common applications include energy plants, mining, firefighting, irrigation, water supply, water treatment, pressurisation, grey water, dewatering, building systems, ballast transfer, sea water general service, scrubber systems, marine and cooling/heating conditioning (HVAC). This self-priming centrifugal pump is required when it is not possible to supply the inlet with fluid via gravity. This range is ideal for installations where the pump sits above the supply tank requiring a suction lift or where the inlet conditions are difficult such as long pipe runs. Priming is achieved by the main pump and the priming system working in tandem. They operate simultaneously, the priming device works by removing all the air from the inlet pipework, this draws the fluid into the body of the main pump, thus priming. A pressure switch then shuts down the priming device once the adequate pressure is achieved to enable to main pump to operate independently. The electric or air powered priming options are down to customer preference, however the air vacuum version is better suited for installations with long inlet pipe runs or where long priming times are anticipated as this option can dry run for small periods of time without damage. The close coupled horizontal centrifugal pump configuration has many benefits: The compact horizontal close coupled design means the pump can be installed where there are space limitations. The back pull-out design allows the motor to be removed while the pump is still connected to the pipework, this in turn allows time saving while the pump is serviced/maintained. The centrifugal pump and motor have independent shafts, this means that only the pump shaft will need to be replaced in the event of it breaking. Other less robust horizontal centrifugal pumps on the market only use the motor shaft, this means that if the shaft breaks, the entire motor needs to be replaced. A lantern bracket is installed between the pump and motor, this creates a space protecting the motor from fluid ingress in the case of a seal failure. Wear rings can be installed in the pump head, this is a sacrificial part that wears first protecting the impeller and casing from wear and prolonging the life of these parts and therefore the pump. Product summary • Self-priming horizontal centrifugal pump fitted with an air powered or electric priming pump• Can pump a wide range of clean low viscosity fluids• Close coupled compact centrifugal design to combat space limitations• Back pull out design to ensure quick and easy maintenance• Maximum fluid temperature of 140°C• Independent pump and motor shafts• Available in cast iron, 316 stainless steel, duplex stainless steel, bronze and other materials upon request• Suction and discharge flanges conform to EN 1092-2 / PN 16. Flanges according to EN 1092-1 / PN 16 for steel and stainless steel casings. If required, ANSI/ASME flanges can be supplied.• Single phase and three phase 50hz / 60hz motors. IP55 as standard.• Independent certification is available upon request• Manufactured in accordance with standard DIN 24255 / EN 733• Available is horizontal and vertical configuration• Casing wear rings to prolong casing and impeller life• Low NPSH Flow RateUp to 500m³/hrHead (Pressure)Up to 100mInlet/Outlet SizesDN32 to DN150Operating Temperature-10°C to +140°CDrive OptionsElectric Motor, Engine

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