Abstract: The invention provides a method and system for suppressing the dew point of a compressed gas to a minimum level below ambient temperature by controlling pressure, cooling and removing liquid water condensate from the compressed gas prior to storage in a receiver vessel and/or delivery to point of use.

Abstract: The invention provides a method and system for suppressing the dew point of a compressed gas to a minimum level below ambient temperature by controlling pressure, cooling and removing liquid water condensate from the compressed gas prior to storage in a receiver vessel and/or delivery to point of use.

Abstract: A water detecting apparatus includes a source of infra-red radiation which is reflected off an inner surface of a pipe wall onto a mirror directing the infra-red signal along a path to an infra-red detector connected by an electrical signal path to an electronic control. The path is interrupted by a rotating chopper having windows occupied by two optical filters. The first optical filter only passes an infra-red signal of wavelength 1900 nm which is absorbed by water, while the second optical filter only passes an infra-red signal of wavelength 2200 nm, another wavelength absorbed by water, but not to the same extent as the 1900 nm wavelength. The 2200 nm wavelength serves as a reference signal.