The SCE-M is an overhung, single stage, radially split, end suction, heavy duty centrifugal process pump with permanent magnetic drive complying with API 685. This pump has a centreline mounted casing, intermediate housing and single suction. No seals are needed. The pump is maintenance-free and meets the requirements of the TA-Luft (German Technical Instruction on Air Quality Control) and has a 100% leak-free performance, the company says, due to the magnet drive technology. By using a non-metallic containment shell, such as one made of zirconium oxide, magnetic losses are eliminated, increasing pump efficiency and great energy savings. The containment shell is designed for 40 bar (580 psi) at 120°C and can be used up to an operating temperature of 250°C (482°F). The magnets are made of thermally stable samarium cobalt material (Sm2Co17) and are suitable in standard for a maximum allowable operating temperature of 250°C (300°C). Special magnet drive systems for an operating temperature up to 450°C are available. The central assembly of the magnetic drive system over the journal bearing avoids moment loadings on the journal bearing, thus avoiding eccentric loading of the inner magnet carrier during startup and shut-down. There are more than 130 hydraulic combinations available for the SCE-M pump, and three different impellers for each pump size are available. The patent pending axial and double radial journal bearing made of sintered silicon carbide (SSiC) are available as standard.
