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SulfurGuard Filter Time Interval Explanation
The CG series filter |
The SG series filter |
The PSF series filter |
The CG series filter
The CG series filter has a specific rating for absorption prior to filter failure. 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 |
Failure Rate of Filter |
CG-19-25-DU |
<2,000 lb/hr |
0.05 |
2,684,016 |
CG-19-25-DU |
<2,000 lb/hr |
0.10 |
1,342,008 |
CG-38-51-DU |
>2,000 lb/hr |
0.05 |
12,756,488 |
CG-38-51-DU |
>2,000 lb/hr |
0.10 |
6,378,244 |
*Note: In examples where two different contaminants are present at 2 different ppm levels, we would use the higher of the 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 |
= | 12,756,488 |
= 3,189.122 hours |
flowrate |
4,000 |
| Weeks prior to replacement = | hours prior to failure |
= | 3189.122 |
= 80 weeks |
hours of use in week |
40 |