BKG® NorCon™ D-SWE Discontinuous Single Piston Screen Changer
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BKG® NorCon™ D-SWE Single Piston Screen Changer for Discontinuous Operation N ormal operation: 1 screen cavity (100%) in the process Backflush: Screen change: During a screen change, a screen cavity is not in position to continue operating the machine Applications Suitable for all polyolefins and a variety of other temperature stable polymers. This system can be used for protection filtration, batch processes, compounding, and masterbatches, as well as for quality filtration of virgin materials. The melt flow is temporarily interrupted during the screen change Easy adjustment of the hydraulic device via the hand control valves Special designs (e.g. screw threading, starting position) possible Quick and easy cleaning allows for rapid material and color changes Technical Information Machine Type/Size Screen Dimensions Screen Area Electric, Fluid, or Steam From size 30 to size 200: Max. 400 bar (5,802 psi) Size 250 and up: Max. 300 bar (4,351 psi) Differential Pressure *These throughput values are only estimates. The actual rates are dependent upon the viscosity of the material, filtration fineness, application, and the contamination level of the material; therefore, the values may differ depending on the actual process parameters.

BKG® NorCon™ D-SWE Single Piston Screen Changer for Discontinuous Operation Normal operation The heated steel housing allows for one screen bearing piston, which contains one screen cavity. The melt flow is led through the screen cavity. Screen change The exchange of the screens is triggered when reaching a chosen differential pressure (Δp). The screen bearing piston with the changeable filter element is moved out of the housing to allow the screen pack of the piston to be removed and replaced with a new filter element. A screen change is only possible during a system shutdown. Nordson PPS...