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PSS® Porous Metal Filter Cartridges

Pall PSS porous metal filter cartridges are made from fine stainless-steel powders sintered to form rugged high voids and fixed pore filters with high temperature, pressure, and solvent resistance. P Series cartridges begin as flat porous sheets which are shaped and welded into cylindrical elements. S Series cartridges are produced in cylindrical form with higher voids and narrower pore size distributions for greater flows at comparable ratings. Double open-ended (DOE) style cartridges are standard. They are recommended for steam service and well suited for liquid or gas applications, including solvents, chemical intermediates, heat transfer, and cryogenic fluids, polymers, pharmaceuticals, and high-temperature gases. Single open-ended (SOE) AB sanitary and threaded styles of these porous metal filter cartridges are also available.

Porous Metal Filter Cartridges - Features

  • All-stainless steel construction 
  • Controlled and fixed pore size
  • PH grade for clean steam
  • Up to 2x life of competitive filters
  • High pressure and corrosion resistant
  • Withstands high reverse-flows
  • High-temperature capabilities
  • Repeatedly cleanable
  • No soluble polymeric extractables
  • No unloading or shedding
  • Absolute rated for reliable performance
  • ISO 9000 Certified Quality System
  • Manufactured for use in conformance
  • FDA-listed materials per 21 CFR
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Datasheets

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Pall PSS porous metal filter cartridges are made from fine stainless-steel powders sintered to form rugged high voids and fixed pore filters with high temperature, pressure, and solvent resistance. P Series cartridges begin as flat porous sheets which are shaped and welded into cylindrical elements. S Series cartridges are produced in cylindrical form with higher voids and narrower pore size distributions for greater flows at comparable ratings. Double open-ended (DOE) style cartridges are standard. They are recommended for steam service and well suited for liquid or gas applications, including solvents, chemical intermediates, heat transfer, and cryogenic fluids, polymers, pharmaceuticals, and high-temperature gases. Single open-ended (SOE) AB sanitary and threaded styles of these porous metal filter cartridges are also available.

Porous Metal Filter Cartridges - Features

  • All-stainless steel construction 
  • Controlled and fixed pore size
  • PH grade for clean steam
  • Up to 2x life of competitive filters
  • High pressure and corrosion resistant
  • Withstands high reverse-flows
  • High-temperature capabilities
  • Repeatedly cleanable
  • No soluble polymeric extractables
  • No unloading or shedding
  • Absolute rated for reliable performance
  • ISO 9000 Certified Quality System
  • Manufactured for use in conformance
  • FDA-listed materials per 21 CFR

Materials of Construction

  • Medium: Type 316L stainless steel1
  • End Caps: Type 316 stainless steel1
  • Gasket: Buna-N (Standard)2

Configuration3

Double open-ended (DOE), flat gasket seals

Diameter (Nominal Dimensions)

  • P Series: 2.5 in. (64 mm)
  • S Series: 2.38 in. (60.5 mm)

Operating Conditions

  • Maximum Differential Pressure4: Forward and Reverse Flow Direction, 3.4 bard (50 psid) to 232 °C (450 °F)

Recommended Maximum Flow Densities5

Grade Aqueous L/min (gal/min) Air Nm3/hr (acfm)
P Series
PD 3.5 (0.9) 13 (80)
PE 2.5 (0.7) 9.5 (60)
PF 2.1 (0.6) 7.9 (50)
PH 1.4 (0.4) 6.3 (40)
P09 1.1 (0.3) 4.7 (30)
P05 0.7 (0.2) 1.6 (10)
S Series
S350 3.5 (0.9) 13 (80)
S200 2.5 (0.7) 7.9 (50)
S100 1.8 (0.5) 6.3 (40)
S050 1.1 (0.3) 3.2 (20)
* This product is available in single open-ended (SOE) AB sanitary and threaded styles in 10 in (254 mm) and in the DOE styles in 20 in (508 mm) and 30 in (762 mm).

Typical Liquid Flow Rates6


1Other grades and alloys available
2Other Polymers available.
3 Single open-ended AB sanitary and threaded styles available.
4Minimum collapse differential pressure. Temperature limit with Buna-N gaskets: 121 °C (250 °F). Other gasket materials to 232 °C (450 °F). For temperatures to 316 °C (600 °F), or in other alloys to 677 °C (1250 °F), contact your local Pall distributor.
5 Ratings are absolute particulate in liquids and gases. Aqueous water, 1 cp and air flows per 10 in. (254 mm) cartridge.
6 Typical initial clean medium ∆P per 10 in. (254 mm) element, water at 20 °C (68 °F), 1 cp. For assistance in sizing and housing selection, contact your local Pall representative.
Metal Filters
This information is a guide to the part number structure and possible options. For availability of specific options and housing details, please contact Pall.

Example Part Number: MBS100 1 PF  J (See bold references in tables below.)

Part Number: MBS100 < Length Code from Table 1 >< Liquid Rating from Table 2 > < Gasket Code from Table 3 >

Table 1 - Length

Code Nominal Length Filter Area
1 10 in. (254 mm) 0.05 m2 (0.5 ft2)
2 20 in. (508 mm) 0.09 m2 (1.0 ft2)
3 30 in. (762 mm) 0.14 m2 (1.5 ft2)

Table 2 - Liquid and Gas Rating

Code Liquid Ratings7 Gas Ratings7
PD 55 μm 20 μm
PE 35 μm 11 μm
PF 20 μm 2.8 μm
PH 13 μm 1.3 μm
P09 9 μm 0.8 μm
P05 5 μm 0.4 μm
S35 35 μm 11 μm
S200 20 μm 2.8 μm
S100 10 μm 0.8 μm
S050 5 μm 0.4 μm
* This product is available in single open-ended (SOE) AB sanitary and threaded styles in 10 in (254 mm) and in the DOE styles in 20 in (508 mm) and 30 in (762 mm).

Table 3 - Gasket Options

Code Gasket Options
H13 Buna-N gaskets (Standard)
H Viton8
J Ethylene Propylene
J7 Ethylene Propylene (Steam Service)
Other materials available on request.

7Liquids: > 99.98% by mod. OSU-F2 test.
Gases: 100% for hard spherical particles.
8Viton is a registered trademark of DuPont Dow
(non-FDA materials)

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