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Ventex Valve

Explosion Isolation

Ventex Valve – Passive Explosion Barrier Valve

The Ventex Valve (Type 6) is used to prevent the propagation of flame and pressure along pipes and ducts.

The Ventex Valve is a normally closed valve which is usually installed in the air intake line of a process.  When the air flow is established the valve automatically opens and remains open until the air flow is turned off or there is an explosion.  In either case the valve closes.  If closed by an explosion, the valve closes and latches in place requiring a simple manual reset to bring it back into operation.  A position indicator switch can be installed to provide remote indication of the valve position.

After an explosion the Ventex Valve can be re-used but the rubber seals must be checked before re-entering service. The unit does not necessarily need to be returned to the manufacturer.  Savings are made in spares holding and down-time as a result.  The result is a cost effective solution for plant designers and end users for all industries.


  • Explosion pressures up to 14 barg
  • Kst values up to 300 bar.m/s
  • Sizes DN100 to DN600
  • Mild steel coated construction


  • 304 stainless steel contact parts, exposed parts or complete
  • IP67 Limit Switch, CAT3D Limit Switch, CAT3D Proximity Switch

ventex valve

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