By-product PreFilter
The PreFilter collects and lessens the buildup of residue in the nitrogen gas circulation loop. It is essential in power cable manufacturing. The PreFilter is composed of a container body with multilayer chambers, a cooling unit, pipework, instrumentation, and valves. 
The assembly is highly effective for by-product collection. A sequence-controlled valve releases the liquid waste into a collection tank. The unit can be disconnected for cleaning. The PreFilter is a pressure vessel. It is calculated and rated accordingly.
Cable surface quality is maintained with a PreFilter in place. Cleansed cooling gas optimizes heat exchange throughout. Unwanted defects in cable geometry are thus avoided.
Benefits

• Longer running lengths
• Extended intervals between maintenance actions
• Reduced surface defects on the cable
• Optimum heat exchange in gas cooling circuit
• Efficient by-product removal.