Axially split double suction pumps MSD, MSD-2

Summary

Product identification

Sulzer MSD/MSD2 Axially Split Multistage Pump

Operating limits

The MSD/MSD2 pump offers the following performance ranges:

• Pump sizes: 80 to 400 mm (3 to 16 inches)
• Capacities: up to 3,200 m³/h (up to 14,000 USgpm)
• Heads: up to 2,900 m (up to 9,500 feet)
• Pressures: up to 300 bar (up to 4,400 psi)
• Temperatures: up to 200°C (up to 400°F)
• Max. speed of rotation: over 6,000 rpm

Performance curves for 50 Hz and 60 Hz operation are available in the official PDF, showing Head (m/ft) versus Capacity (m³/h/USgpm).

Feed water / Applications

Main applications include:

• Boiler feed in all industries; auxiliary feed in nuclear power
• Reverse osmosis feed
• Offshore crude oil shipping
• Refined product pipeline
• Supercritical Liquefied Petroleum Gas (LPG), Ethylene and CO₂ compressible services down to 0.25 sp.gr.

The pump is suitable for use in Hydrocarbon Processing Industry, Oil & Gas, Power Generation, Pulp and Paper, General Industry, Water, and Chemical Processing Industry.

Mechanical / hydraulic

Key features and design elements:

• Impellers: Shrink fit, precision cast, dynamically balanced and individually secured.
• Axially split casing: Simplifies rotor balancing, inspection and installation, case passageway inspection and modification, and spare rotor retrofits. Support is near centerline for alignment. Full range of design pressures to suit applications.
• Large diameter shaft: Stepped for ease of assembly; sized to satisfy rotor dynamics and power transmission with worn clearances; optimized for hydraulic performance.
• Double volute construction: Minimum radial thrust for less shaft deflection and less bearing loading.
• Bearings: Ball radial and 7300 series ball thrust bearings are standard; sleeve/ball and sleeve/pivot shoe bearings are optional. INPRO™ isolators are standard.
• Seal chambers: Easy access for maintenance; space for tandem and double mechanical seals; compliance with ISO-13709 (API610) dimensions.
• Split center bushing: Facilitates rotor dynamic balance, inspection, removal and replacement.
• Replaceable wear rings: Pinned and axially retained impeller and case wear rings are standard.

Materials:

• Material classes (API610): S-5, S-6, S-8, C-6, A-8, D-1, D-2

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the original OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used for the project.

Official datasheet (PDF)

Lenntech datasheet mirror