Fire suppression

Fire Barrier Code 222S

The Conflow Code 222S - Extended Water Fire Barrier is used to contain and prevent the spread of fire in underground roadways.

The barrier consists of a structure of 2" metal pipes, which are usually situated towards the roof of a roadway in a central position. Special sprays are sited at regular intervals along the length of the pipe so that, when energised, they create a curtain of water, which acts as a fire barrier across the roadway section.

The barrier is energised using a pilot operated weighted lever valve, which is triggered by temperature sensitive links.

Typical Applications

  • Barriers are installed in main roadways ahead of potential fire sources and downstream of the flow of ventilation in all types of underground mines
  • Shorter barriers are also fitted locally around conveyor drives and ventilation fans


  • 2" main feed pipework
  • Barriers from 14m up to 55m in 2.7m lengths
  • Spray sizes 3/32" or 1/16"
  • Complete roadway coverage by elbow spray housings
  • Weighted lever valve set to trigger @ 57°C

The information on this data sheet is accurate to the best of Conflow’s knowledge, however we reserve the right to alter the product specification at any time. For any specific updated detail, please contact us.

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