MNL-0096
April 17, 2013
Page 60
5.2.1.1
Oil and Water Separator
The coalescing oil and water separator uses a sintered metal filter to separate the liquid oil and water par-
ticles from the compressed air.
5.2.1.2
Condensate Drain Valve
A manually operated valve used before start-up and during operation to drain the condensed liquids from
the coalescing oil and water separator. It is recommended not to drain the condensate more than four
times per hour of operation.
5.2.1.3
Check Valves
Valves allowing compressed air to flow in only one direction. One is used to maintain pressure in the
chamber when the compressor is not operating. The other prevents back-flow from filled storage.
5.2.1.4
Dryer Cartridge
The casings of the dryer cartridge as well as the cover and bottom are aluminum. The dryer cartridges are
packed with molecular sieve which absorbs oil and water.
5.2.1.5
Bleed Valve
A manually operated valve used to release the pressure in the chamber before maintenance.
5.2.1.6
Pressure Maintaining Valve
The pressure maintaining valve ensures that pressure is built up in the purification system from the start
of delivery, thus achieving constant optimum purification. It also assures proper working conditions for
the final stage of compression.
5.2.1.7
Safety Valve
The safety valve is the safety valve for the final stage of the compressor.
5.2.1.8
Securus
®
Electronic Moisture Monitor System
The Securus
®
Electronic Moisture Monitor System warns the operator in advance of expiration of the life
of the cartridges. The Securus
®
Indicator receives signals concerning the condition of the drying agent
inside the Securus
®
cartridge from the attached sensors and supplies the appropriate control signals when-
ever the preset threshold values have been reached.
5.2.1.9
Securus
®
Cartridge
The Securus
®
Cartridge is packed with a catalyst which converts carbon monoxide to carbon dioxide,
activated carbon which absorbs oil vapors, molecular sieve which absorbs oil and water and the sensor
components of the Securus
®
Electronic Moisture Monitor System.
5.2.1.10
Securus
®
Indicator
The operating condition of the Securus
®
Electronic Moisture Monitor System is indicated by the color
and state of four LED’s on the front of the Securus
®
Indicator and is shown in the following table.
NOTICE
After applying power it will take about ½ second for the appropriate LED to illuminate.
During this time the status of the Securus
®
Electronic Moisture Monitor System is tested.