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Compressing costs

New Ingersoll-Rand SSR compressors are playing a key role in upgrade works on the 25 April Bridge crossing the Tagus River in Lisbon, Portugal.

The units are being used by Sociedade Lisbonenese de Metalizacao, which is responsible for supplying all the compressed air for the project and is in charge of blasting and painting the bridge.

Monitoring both compressor stations on the north and south bank is an Ingersoll-Rand Intellisys system controller.

Energy savings provided by a combination of the ISC system and efficent two stage SSR rotary screw compressors have produced energy savings of 10% over that required if only single stage compressors were used.

This is a substantial figure as energy costs represent one and a half times the value of the total investment in the equipment.

Reader enquiry no 811

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