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The comply with increased safety standards, this system replaces the standard diaphragm by a tandem arrangement of two diaphragms and a PE conductive barrier chamber filled with a non-conductive liquid (usually de-ionised water).

Sensors monitor the conductivity of this liquid and if the diaphragm fails, they detect the change in conductivity and an electronic signal is sent to a controller.

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The barrier system is available with three options:
BC1 – barrier system with sensors, standard
BC2 – barrier system complete with sensors and controllers
BC3 – barrier system complete with sensor and controllers for expolosion-prood zones – ATEX

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