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Rigimesh® Sintered Metal Mesh Filter Cartridges

Pall Rigimesh sintered metal mesh filter cartridges are constructed from fine-woven stainless steel wire mesh which is sintered at each wire contact point in a Pall-patented process to produce an extremely strong surface-sieving porous material with extremely narrow pore size distribution. Unlike unsintered meshes, Rigimesh media will not shift under stress. Sintering also enables the use of finer wires to produce more pores per unit area for higher flow rates and higher contaminant loading capacity. Rigimesh media is pleated to form double open-ended (DOE) MBS1000 style filter cartridges with applications in bulk active pharmaceutical chemical purification processes such as catalyst solids recovery and decolorizing carbon removal.

Single open-ended (SOE) AB sanitary and threaded styles are also available.

Features and Benefits

  • All-stainless steel construction
  • Sintered mesh screen media
  • Pleated for high-capacity
  • Consistent and fixed pore size
  • Corrosion resistant
  • High pressure 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 with cGMP
  • FDA-listed materials per 21 CFR
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Description

Pall Rigimesh sintered metal mesh filter cartridges are constructed from fine-woven stainless steel wire mesh which is sintered at each wire contact point in a Pall-patented process to produce an extremely strong surface-sieving porous material with extremely narrow pore size distribution. Unlike unsintered meshes, Rigimesh media will not shift under stress. Sintering also enables the use of finer wires to produce more pores per unit area for higher flow rates and higher contaminant loading capacity. Rigimesh media is pleated to form double open-ended (DOE) MBS1000 style filter cartridges with applications in bulk active pharmaceutical chemical purification processes such as catalyst solids recovery and decolorizing carbon removal.

Single open-ended (SOE) AB sanitary and threaded styles are also available.

Features and Benefits

  • All-stainless steel construction
  • Sintered mesh screen media
  • Pleated for high-capacity
  • Consistent and fixed pore size
  • Corrosion resistant
  • High pressure 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 with cGMP
  • FDA-listed materials per 21 CFR

Specifications

Materials of Construction

  • Medium: 304 L stainless steel1
  • Core and End Caps: 304 stainless steel1
  • Gaskets: Buna-N2

Configuration3

  • Double open-ended (DOE)
  • Flat gasket seals

Nominal Dimensions

  • Diameters: 64 mm (2.5 in.)

Operating Conditions

  • Maximum Differential Pressure and Temperature4
  • Forward Flow Direction: 8.6 bard (125 psid) to 232 °C (450 °F)
  • Reverse Flow Direction: 0.7 bard (10 psid) to 232 °C (450 °F)

Recommended Maximum Flow Densities5

 
Grade Aqueous L/min (gal/min) Air Nm3/hr (acfm)
RA 14 (3.7) 47 (300)
RT 11 (2.9) 38 (240)
RS 8.8 (2.3) 32 (200)
RR 7.0 (1.8) 24 (150)
RM 3.3 (0.8) 16 (100)
RJ 3.5 (0.9) 13 (80)
RK 2.8 (0.7) 11 (69)
RZ 1.8 (0.5) 6.3 (40)
 

Typical Liquid Flow Rates6

 

1Also available with type 316 L medium and type 316 hardware or with other alloys (special order)
2Other polymers available
3single open-ended sanitary AB 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 Reinforced for 50 psid (3.4 bard) Reverse-flow option, temperatures to 316 °C (600 °F), or in other alloys to 677 °C (1250 °F), contact your local Pall distributor.
5Aqueous (water, 1 cp) and air flows per 10 in. (254 mm) cartridge.
6Typical 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.

Type

Metal Filters

Ordering Information

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 2 RA J (See bold references in tables below.)

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

Table 1 - Length
 
Code Nominal Length Filter Area
1 10 in. (254 mm) 0.09 m2 (1.0 ft2)
2 20 in. (508 mm) 0.19 m2 (2.0 ft2)
3 30 in. (762 mm) 0.28 m2 (3.0 ft2)
4 40 in. (1016 mm) 0.37 m2 (4.0 ft2)
 

Table 2 - Liquid and Gas Ratings
 
Code Liquid Ratings7 Gas Ratings7
RA 450 μm 350 μm
RT 225 μm 175 μm
RS 105 μm 85 μm
RR 70 μm 55 μm
RM 45 μm 25 μm
RJ 25 μm 18 μm
RK 18 μm 13 μm
RZ8 15 μm 2 μm
 
7Liquids: > 99.98% by mod. OSU-F2 test.
Gases: 100% for hard spherical particles.
8Supramesh® (Sintered powdered metal and mesh composite medium).

Table 3 - Gasket Options
 
Code Gasket Options
H13 Buna-N gaskets (Standard)
H Viton*
J J Ethylene Propylene
J7 Ethylene Propylene (Steam Service)
 
Other materials available on request.
* Viton is a registered trademark of DuPont Dow (non-FDA materials).

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