SulfurGuard Filter Time Interval Explanation

The CG series filter

The SG series filter

The PSF series filter

The SG series filter

The SG series filter has a specific rating for absorption and time interval. I have listed failure rates in the chart below. To find the number of hours or weeks the filter will last, we use a linear relationship.

hours of flow prior to failure =
failure rate of filter at ppm level

flow rate

 

Weeks prior to replacment =
Hours of flow prior to failure

Hours of use per week

 

Filter element

Typical flow
rate scenario

PPM Level

Lbs. of CO2 absorbed prior to failure

SG-19-25-DU-2X
<2,000 lb/hr
0.05
2,058,497
SG-19-25-DU-2X
<2,000 lb/hr
0.10
1,029,249
SG-38-51-DU-2X
>2,000 lb/hr
0.05
14,745,600
SG-38-51-DU-2X
>2,000 lb/hr
0.10
7,372,800

*Note: In examples where two different contaminants are present at 2 different ppm levels, we would use the higher of two levels for our failure rate.

Example:

Company is running CO2 filter system at 350 psi and 4,000 lbs. per hour. System is used for 40 hours per week. Incoming CO2 is expected to have 0.05 ppm contaminant level of H2S and COS.

Hours prior to failure =
Failure rate
=
14,745,600
= 3,686.4 hours


flowrate
4,000

 

Weeks prior to replacement =
hours to failure
= 3686.4 = 92 weeks


hours of use in work week
40