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sales@abl-pall-filters.com
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Overview
Specifications
Performance
Additional Information
Ordering Information
BROCHURE
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Estimation

  • Excellent gas displacement and desorption characteristics
  • High temperature and pressure capabilities
  • Compact size for ease of installation
  • Wide variety of fitting options available
  • 100% helium leak tested
  • Cleanroom manufactured and packaged
  • Housing material meets or exceeds VIM VAR specifications.

Specifications

Filter Medium 316L stainless steel or nickel
Internal Surface Finish 10 μin / 0.25 μm Ra
Housing Electropolished 316L stainless steel
Housing material meets or exceeds typical VIM VAR specifications
Removal Rating ≥ 1.5 nm
Particle Removal Characteristics 4281 series:
109 particle reduction up to 6 slpm / 0.2 scfm 104 particle reduction up to 75 slpm / 2.6 scfm
4581 series:
109 particle reduction up to 50 slpm / 1.76 scfm
Connections 1⁄4" Gasket Seal, male (VCR1 or compatible)
Other fitting configurations available, please contact Pall
Leak Rating 100% helium leak tested to 10-9 atm•cm3/sec
Design validated to 10-11 atm•cm3/sec
Maximum Operating Pressure 3,000 psig @ 100 °F / 207 bar @ 38 °C; 1,685 psig @ 840 °F / 116 bar @ 450 °C
Maximum Allowable Differential Pressure 125 psid @ 100 °F / 8.6 bar @ 38 °C; 60 psid @ 840 °F / 4.1 bar @ 450 °C
EU pressure equipment directive Assemblies have been evaluated and are CE marked per the European Union’s Pressure Equipment Directive 2014/68/EU

1 VCR is a trademark of Swagelok Co.

Performance

Pressure Drop vs. Gas Flow Rate

GLFF4281VMM4

GLFF4581VMM4

GLFN4581VMM4

Additional Information

Dimensions

Ordering Information

Part Number Description Fitting Type
GLFF4281VMM4 All Stainless Steel 1⁄4 in. Gasket Seal (VCR or Compatible)
Male / Male
GLFF4581VMM4 All Stainless Steel 1⁄4 in. Gasket Seal (VCR or Compatible)
Male / Male
GLFN4581VMM4 Nickel Media, 316L Stainless Steel Housing 1⁄4 in. Gasket Seal (VCR or Compatible)
Male / Male

Unit conversion: 1 kilogram per square centimeter = 98.067 kilopascals

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