Both investment and lifecycle expenditures are taken into consideration when constructing the best possible pump, as an enhanced hydraulic design guarantees maximum effectiveness.
M-series pumps have a modular design, allowing Sulzer to find the most efficient solution to meet customer requirements.
Main benefits
- Modular hydraulics for high efficiency in a wide range of operating conditions
- Centreline mounted with large branch sizes for optimised inlet flow, low noise level and higher allowable forces and moments
- Unaffected by rapid temperature variations
- Stiff shaft design for critical speeds above the maximum operating speed
- Multiple screws mechanical tensioners are used on large sizes to allow simpler tightening and loosening
Main applications
- Main boiler feed in captive, independent, combined cycle, concentrated solar, biomass, and industrial power plants
- Start-up boiler feed in utility thermal power plants
- High-pressure water in general industry
Main design features
- Up to four impeller sets per pump size
- Optimal hydraulic selection to meet exactly the operating data and low net positive suction head required (NPSHr)
- Double suction first-stage impeller available for selected pump sizes
- Balance drum and axial thrust bearing designed for long life under extreme operating conditions is standard
- Balance disc is optional
- Permanent magnetic lift-off device is available for frequent start-stop operation
- Paired, fan-cooled taper roller thrust bearings are standard for balance drum configuration
- Optional sleeve radial bearings and double acting tilting pad with forced lubrication
Key characteristics
Capacities: Up to 1,000m3/h / 4,400 US gpm
Heads: Up to 2,400m / 8,200ft
Suction pressures: Up to 50bar / 725psi
Discharge pressures: Up to 350bar / 5,080psi
Temperatures: Up to 210 °C / 410 °F
Discharge sizes: Up to 200mm / 8in
Maximum speed of rotation: Up to 4,000rpm