Maximum Capacity (Flow Rate): 900m³/h (4000 USgqm)
Differential Head: 150 mLC (500 ft)
Maximum Allowable Working Pressure: 35 bar at 200°C (500 psi at 390°F)
Maximum Transmissible Power:
195 kW (265 HP) at 3500 rpm
160 kW (217 HP) at 2900 rpm
Maximum Fluid Temperature:
250°C (485°F)
400°C (750°F)
Containment shell of the process pump
The containment shell is a designed pressure vessel to separate the pumped liquid from the atmosphere only. The shell is not used as an additional bearing holder. Therefore, no dynamic stress occurs.
Besides the standard containment shell with can, made in one piece, a containment shell of "sandwich design" is also available. This design will be applied at pump speed 2900/3500 rpm and motor ratings above 75 kW in order to reduce magnetic losses.
Different from the conventional design, this sandwich containment shell consists of two shells. The inner shell which accepts the radial loads consists of centered rings. These rings are insulated from each other by confined Gore-Tex-PTFE gaskets and preloaded by a wave spring to avoid any leakage. The outer shell consists of a slotted pipe with bottom and adapter flange welded to it. This shell accepts the axial loads generated by the pressure p5. This design - together with a special magnet assembly - reduces the magnetic losses by approx. 50%, compared to a Hastelloy C containment shell of 1.0 mm (0,039") thickness. The maximum allowable working pressure is 35 bar at 200°C (500 psi at 390°F).
Containment shell protection / Internal clearances
The clearance between the rotating drive magnets and the stationary containment shell is larger than the clearance between the rotating safety ring and the bearing bracket. This prevents containment shell rupture in case of ball bearing failure.
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