Explosion-proof switchboxes

This year’s introduction of ATEX-certified explosion-proof switchboxes has created a much higher level of demand than could have been predicted, says valve accessories specialist Rotork Valvekits. The SIRA-certified, ATEX-approved Circa 7000 switchbox range encompasses switch, sensor, ASI 2-wire connectivity and remote position feedback options. A
unique feature of the Circa range is the high visibility “beacon” position indicator, which has also received ATEX explosion-proof approval. Recent applications include 20 units for valve position indication at a petroleum tank farm in The Netherlands. Valvekits’ contract encompassed the supply of new manual valve gear operators, switchboxes and mounting brackets.

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