and economy of use, with at least two times the dirt holding capacity of conventional porous metal elements.
A manufacturing process for S Series PSS elements eliminates the undesirable effects of forming and longitudinally welding flat sheets into cylindrical filter elements. This results in seamless elements that are more resistant to mechanical, chemical and thermal stresses. This unique process also produces a sintered medium of significantly higher void volume and a highly uniform pore structure. Designs are available suitable for temperatures up to 1250° F/677°C.
Operating CharacteristicsStandard stainless steel cartridges are capable of withstanding a minimum collapse differential pressure of
50 psid in the forward flow (outside-in) direction to 600°F* and 50 psid in the reverse flow direction. Pressure ratings for cartridges constructed of other alloys can be obtained from Pall Corporation.
* Threaded connector series only. Due to seal limitations, 1000 Series suitable for applications up to 450° F.
SizesS Series PSS cartridges are 2 3/8" in diameter and are available in incremental lengths of 10" up to 30". The filter medium thickness is a nominal 1/16". For AB style S Series PSS cartridges consult the factory. Figure 1. Standard S Series PSS Filter Elements
* These removal ratings should be used when comparing S Series PSS to competitive grades.
1 Liquid removal efficiency ratings are based on a modified F2 test method and actual particle count data. The 50% removal values should be used when comparing S Series PSS efficiency data to other competitive sintered powder media.
2 Weight percent removal data based on AC Fine Test Dust in air. Absolute retention ratings based on actual particle count.
3 Pressure drop in psi obtained by multiplying value shown by actual flow desired in gpm, viscosity of liquid in centipoise (if other than 1 cp), all divided by total filtration area (ft2) selected. See table 2 for area.
4 Pressure drop in psi obtained by multiplying value shown by actual gaseous flow rate desired (acfm), ratio of viscosities all divided by total filtration area (ft2) selected. See Table 2 for area. actual cp of gas
0.018 (viscosity of air)
|Nominal Length (in)||Area (ft2)/m2|
|H13 (Std.)||Buna-N (Nitrile)|
|J7||Ethylene Propylene for Steam Service|
|Nominal Length (in)/(mm)||Area (ft2)/(m2)|
A full selection of standard Pall industrial housings are available for S Series PSS elements. Threaded connector elements are designed to fit a special line of housings capable of a broader range of temperature (cryogenic to 800°F) and chemical service. Custom designed housings for specific applications are also available.
Table 3. Housings For S Series PSS Elements
|Type of Element||Housing Available|
|MBS 100 ■ Series||See Housing Data Sheets H14-19|
|See Housing Data Sheets
H48, H49 and H50