Explosion Isolation Knife-Gate Valves Protection

Performance Features

  • Enables safe explosion protection in the pipe system without any pressure drop
  • Available in three different versions and is suitable for dust, gas and in CIP-applications
  • Short installation distances thanks to compact design
  • Flexible installation at any angle
  • Approved for organic and metallic dusts, hybrid mixtures and gases

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  • Description
  • Types
  • Sizing
  • Documentation

Description

Designed to respond in the manner of an ‘air bag’ in a vehicle, when the IVE isolation valve is directed to close, an inflatable bladder immediately fills the body cavity to stop product flow and arrest flame propagation. This operating mode minimizes the reaction forces generated by the IVE valve. The BS&B Type IVE valve is available in sizes from 4” to 16” nominal diameter (100mm to 400mm). Activation of the valve can be by BS&B supplied pressure or optical sensors.

Types

Process Equipment Protection Basis Mechanical Isolation Guidelines
Containment The mechanical isolation device applied must be designed to survive the maximum explosion pressure for the process material, Pmax. In addition, all of the piping and equipment upstream of the isolation device must also be designed to accept Pmax. This may require a design pressure as high as 230 psig (16 bar).
Venting The mechanical isolation device applied must be designed to survive the reduced explosion pressure of a vented deflagration, Pred. In addition, all of the piping and equipment upstream of the isolation device must also be designed to accept Pred. This will typically require a design pressure as low as 3 psig (0.2 bar).
Suppression The mechanical isolation device applied must be designed to survive the reduced explosion pressure of a suppressed deflagratlon, Pred. In addition, all of the piping and equipment upstream of the isolation device must also be designed to accept Pred. This will typically require a design pressure as low as 2 or 3 psig (0.14 or 2 bar).

Sizing

Product Literature

Industrial Explosion Protection