Main design features
- Closed type impeller with front and rear wear rings as well as balancing holes, to minimise the axial thrust.
- Double suction 1st. stage impeller to meet low NPSH requirements.
- Number of stages rangeable from 1 to 10.
- Pump shaft in one or at the maximum two pieces, fully machined to respect the more restrictive run-out API limits.
- As a standard, the rotor axial thrust is supported by a duplex oil lubricated ball angular contact type bearings.
- Renewable bushings are provided at all interstage casing and column.
- Deep stuffing boxes, designed in accordance to API 682 Std., suitable to accept any type of mechanical or packing seal.
- Labyrinths and deflectors at either bearing housing to maximise protection against dirt.
Technical data
Capacities: up to 1200 m3/h (2600 gpm)
Heads: up
to 500 m (1600 feet)
Temperatures: from -150°C (-240°F) to 400°C (750°F)
Design working pressure: up to 70 barg (1000 Psig)
Rotational
speed: up to 2000 rpm
Max hydrotest pressure: up to 105 barg (1500 Psig)
Design variations
In addition, the following pump designs can be provided:
- Additional rigid coupling to facilitate mechanical seal maintenance activities.
- Enclosed lineshaft construction to protect shaft.
- Inside drain line.
- Axial thrust tilting pad bearings for ultra high thrust operating condition.
- Anti reverse rotation device.
- Air fan or water cooling system provided on bearing bracket and /or mechanical seal when required by hot temperature applications.
- Special bearing isolators at either bearing housing ends.
- Oil mist lubrication ( pure or purge ).
- Temperature and/or vibration detection and monitoring equipment.
Applications
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Circulation
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Condensate Extraction
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Condenser Cooling
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Cooling Water
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Flood Protection
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General Purpose
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Heater Drain
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Hydrocarbon Booster
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Hydrocarbon Processing
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Municipal
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Petrochemical Processing
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Pipeline Booster
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Power Generation
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Sewage
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Storm Water
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Sump Service
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Utility
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Water
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Water Cooling
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Water Supply
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Water Treatment
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Wet Pit |