3a Centre Court, Sir Thomas Longley Road
Medway City Estate, Rochester, Kent ME2 4BQ
01634 570218
[email protected]

904 – High Purity single stage gas Regulator

Model 904 is a chrome plated single stage cylinder regulator with a stainless steel diaphragm for general purposes application where high purity gas is required. The 904 can be used when a slight pressure rise from full to empty cylinder can be tolerated. 


  • Non-corrosive gases
  • Purging
  • Pressure testing
  • Blanketing


  • Recommended purity levels of grade up to 5.0 (99.999%)
  • External safety relief valve with 1/4” NPT female thread for external release hose connection
  • 302 stainless steel diaphragm eliminates contamination from diffusion or outgassing
  • One piece encapsulated seat design includes a sintered filter to protect the seat from particulate contamination
  • Forged brass body fully chromed
  • Chrome plated bonnet and fittings
  • Capsule seat with Kel-F (CTFE) sealing surface
  • Maximum inlet pressure 300 bar (4350 psig)

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01634 570218


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