ATEX-certified pressure rotary lock

A pressure rotary lock is a system of two rotary valves interconnected by a pressurization chamber. The pressure rotary locks enable pressureless feeding or discharge of powders or liquids to or from overpressure or vacuum-pressure areas. The pressure rotary locks are installed at gravity transfer points at a maximum pressure differential up to 10 bars. If ATEX 95 certified, the pressure rotary locks can be operated in Ex-zones or as standalone explosion isolation systems.

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  • Discharge of powders / liquids from overpressure or vacuum-pressure areas;
  • Feeding of powders / liquids to overpressure or vacuum-pressure areas;
  • Dispensing of powders / liquids;
  • Explosion isolation in Ex-zones;
  • Examples of installation locations: outlet connections of cyclone separators, air filters, or dryers.
  • A complete pressure rotary lock with automatic aeration / deaeration of the pressurization chamber;
  • Optional ATEX-certified versions available on request;
  • Optional DMT-certified flame-arrester versions with resistance to violent pressure shockwaves;
  • Double-wall casing permits heating;
  • Nominal diameter range: DN 50 to DN 1200, PN6 to PN 16;
  • Max. pressure differential ≤ 10 bar (DN size dependent).
  • Selection of optimized unit;
  • Delivery and installation;
  • Inspection and servicing.

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Grupa WOLFF
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We will answer questions about: offer, technical specification, delivery, assembly.

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