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Recommended Change-Out Procedures
1. When the entire system is installed, obtain a static pressure reading for the clean system
2. Change out the first stage when the static pressure rises a1.0 w.g. above the initial resistance.
3. Repeat this procedure until the static pressure remains at 1.0 w.g. even with a clean first stage
installed. At that time, replace the first and second stage. If a three-stage system is used, continue
replacing stage 1 and 2 until the third stage maintains a 1.0 w.g. reading with both clean first and sec-
ond stages installed, then replace the entire system.
Initial pressure for a system can be estimated for an airflow velocity of 150 FPM by totalling the initial
pressure drop for each stage. This data is available in the technical performance data in this catalog.
Item No. Item Model Description Qty/Cs
DP PA1438 FP319A395S2415 12x24x15 PAK FP319A 95% 3Stage 4
DP PA1439 FP319A695S0015 20x20x15 PAK FP319A 95% 3Stage 4
DP PA1440 FP319A695S4415 24x24x15 PAK FP319A 95% 3Stage 4
Stage 1 FP3 332 331Y 330G PA100
Options PA 200 PA 300 PA 400 PA500 PA600
PS 125 225T Panel 325T Panel 425 Panel ST55 Panel
Stage 2 Cube 2325T Cube Filter (2-Pocket 325T Series Cube)
Mandatory
2-Stage System Options
All products listed are located within this catalog.
Flanders Precisionaire Products
Stage 1 FP3 332 331Y 330G PA100
Media Pad PA 200 PA 300 PA 400 PA500 PA600
Options PS 125
Stage 2 225T Panel 325T Panel 425T Panel ST55 Panel
Options 225T Cubes 325T Cubes 425T Cubes Any Stage 1 Option
Stage 3 319A 95% Bags
Mandatory
3-Stage System Options
All products listed are located within this catalog.
Flanders Precisionaire Products
NESHAP 319
2 and 3 Stage Compliant System