Gas Filter 77 (for O2) |


Gas Filter 77 (for O2)

WITT Gas filter 77

Data sheet Quotation request

Gas filter with Bronze filter element especially for O2 (according to EIGA) for filtering out mechanical impurities (50 μm or 5 μm) and condensate in pipelines, for high flow rates

  • increases service life of downstream fittings and equipment
  • high flow rate - owing to flow maximising design
  • especially for O2 with bronze filter, meets all requirements of EIGA guidelines
  • with condensate drain
  • change of filter possible while installed
  • every gas filter 100% tested
  • 2.81 X 8 inches, approx. 120 oz


WITT gas filter for GOX : Best practices in Safety, with maximum Operability.
In addition to removing contaminants, WITT’s Filter 77 – O2 drains out condensate, protects downstream
equipment and extends service life. All designed to meet the Best practices in Safety, with maximum Operability.

Description :

  • Bronze (Cu89/Sn11) 50μ filter element or 50μ filter element
  • O-Ring Elastomer FKM (FKM 938)
  •  -30 °C to +60 °C
  • Up to 40 barg
  • Connections G 3/4 F
  • Length 205 mm, diameter 72 mm, mass 3.03 kg
  • Type 077-010


Meeting the Best Practices in Safety :

  • Meets all the requirements of EIGA Guideline IGC Doc 13/12/E “Oxygen Pipeline and Piping Systems“
  • Certification by BAM (German Federal Institute for Materials Research and Testing) for O2 service
  • Pre-cleaned to EIGA Guideline IGC Doc 13/12/E, and ready for O2
  • Withstands maximum line pressure (40 barg) even if it becomes clogged
  • No velocity limitation, including during commissioning “blow-out” testing
  • Not subject to a minimum thickness requirement (per Appendix D of EIGA Guideline IGC Doc 13/12/E).


 With maximum Operability :

  • Reliable filtering performance increases service life of downstream fittings and equipment
  • Condensate can be collected and removed using condensate drain
  • Change of filter element possible while installed, due to user-friendly design
  • High flowrates owing to its flow maximising design (please see flow curves overleaf)
  • Easy to install
  • Easy to maintain - the condensate should be drained at regular intervals, and the filter element should be checked regularly and replaced if necessary in accordance with Appendix F of EIGA Guideline IGC Doc 13/12/E.


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Gas Filter 77 (for O2) is used in following areas:


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