Hy-Fex hyperbaric fire extinguisher

Hy-Fex Hyperbaric Fire Extinguishers are simple, easily handled, and are designed to be used in hyperbaric diving and medical therapy chambers.

They are available in two volume sizes to facilitate locating, as appropriate, in the different compartment sizes found in hyperbaric systems.

These are:

  • 3 litre will typically be appropriate for air dive chambers, and entry / transfer locks of larger chamber complexes.
  • 6.7 litre will suit main living chambers and large treatment chambers.


Please Note: The Hy-fex Fire extinguisher is supplied uncharged for transportation safety reasons. Foam refill is supplied with each extinguisher.

Warning: Use only JFD AFFF Foam. Do not use other makes / brands.

Hy-Fex fire extinguisher Hy-Fex fire extinguisher Hy-Fex fire extinguisher

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Hy-Fex - Prod.jpg

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Hy-Fex in Chamber 1 - Prod.jpg

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Hy-Fex in Chamber 2 - Prod.jpg

Hy-Fex extinguisher volume

3.0 litre

6.7 litre

Part number



Extinguisher height

540 mm

675 mm

Cylinder diameter

117 mm

152 mm

Cylinder centre to handle extremity

115 mm

115 mm

Cylinder centre to hose extremity

130 mm

130 mm

Weight charged

7 kg

14 kg

Cylinder volume

3.0 litres

6.7 litres

Foam discharge

22 litres

45 litres

Discharge time

22 seconds

45 seconds

Discharge distance

6 m

6 m

Effective discharge



Cylinder test pressure

310 bar

310 bar

Extinguisher working pressure

133 bar

133 bar


-15 to +55oC -15 to +55oC

Tested depth

450 msw

450 msw

Chamber volume rating

6 m3

14 m3

Item Order code

Hy-Fex hyperbaric fire extinguisher 3.0 litre


Hy-Fex hyperbaric fire extinguisher 6.7 litre


Foam refill 3 litre


Foam refill 6.7 litre


Mounting bracket 3 litre

Mounting bracket 6.7 litre SE488210
Document Document type Download
EU/UK Declaration of Conformity Certificate P2117-DC-1435_R10
Hy-Fex hyperbaric fire extinguisher Datasheet


Hy-Fex hyperbaric fire extinguisher (Part numbers: SE480BA, SE481BA) Operation and maintenance


Hy-Fex hyperbaric fire extinguisher User Guide


Hy-Fex, 3.0L x 117mm, OD cylinder, including refill, CE-UKCA Drawing


Hy-Fex, 6.7L x 152mm, OD cylinder, including refill, CE-UKCA Drawing


The Hy-Fex fire extinguisher maintenance course is designed to ensure competence in operating and carrying out maintenance schedules on the Hy-Fex hyperbaric fire extinguisher.

Course duration: 1/2 day

Book course