P
The Leader in Nitrogen Generation Technology
FPS-500 O&M Manual
Revision 2; 3/2020
Page
14
of
30
6. System Design
6.1. Key Features
The
N
2
-BLAST
®
FPS-500 key features include the following:
•
Air Compressor
•
Programmable Logic Controller (PLC)
•
Safety Relief Valves
•
N
2
Tank
•
Air Filters
•
Pressure Swing Adsorption Beds
•
Automatic Pressure Cut-in/Cut-out
•
STS Patented BlastOff
®
6.1.1. Air Compressor
An oil-less internal air compressor has an engineered dampening system reducing vibration and
noise throughout the cabinet. The air compressor has a pre-filter to catch small particulates that can
cause damage. The recommended replacement for the pre-filter is 1000 run hours or 1-year,
whichever comes first. Dirtier environments may need more frequent changes. Consult with the
supplier for a different filter maintenance schedule if installing in a dirty environment.
6.1.2. Air Filters
The generator has an air inlet pre-filters and two filters between the compressed air and O
2
separation beds - the particulate and coalescing. The 5-micron particulate filter catches the bulk
particles, and the 0.1-micron coalescing catches the remaining smaller particles. Both filters feature
an auto-drain that drains any water buildup within the filter housing. These drain lines are on the
cabinet’s bottom right side. Connect these drain lines to a safe location.
6.1.3. PLC Controller
An integrated PLC
within the cabinet features smart timing to maximize the generator’s
performance. It controls the valve timing and sequencing to move compressed gas throughout the
system. It also has a smart feature to automatically switch between different “modes” based on the
current run stages (see Chapter 7: System Operation for more about the unit’s functionality).
6.1.4. Safety Relief Valves
The installed ASME safety relief valves add additional safety to protect component failures.
6.1.5. Nitrogen Tank
The nitrogen tank comes with ball valves, safety relief, and a gauge. The outlet gas connects to an
external manual ball valve for easy plug and play connection.
