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IGV

IGV

Inlet guide-vane valve. Valve assembly at the air inlet of a "blower" (single stage, low pressure, centrifugal air compressor). Usually advised to be mounted in very close proximity to the "blower" impeller. Provides "pre-swirl" of air flow in same rotational direction as "blower" impeller. Proven to improve efficiency (reduced bhp) during throttled-down modulation of "blowers". Effectiveness, when used with multi-stage centrifugal air compressors, degrades rapidly. (200)