When a transfer hatch needs to be located in a firewall, PBSC is able to provide either the wall or floor-mounted version with vision panels in the stainless-steel door leaves.

The PBSC fire-rated pass-through is tested to BS 476 part 22, with integrity certification from 60 to 90 minutes.

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  • Robust Mechanical Interlock System
  • Solid Stainless-Steel Hinge Assemblies
  • Easy Clean Surfaces
  • Test Certification to BS476 part 22, up to 90 minutes Integrity
  • Wall or Trolley Mounted
  • 30 minutes insulation properties
  • Used in a broad range of applications
  • Custom Sizes


Fire Rated Wall and Trolley Hatch for cleanroom environments

These hatches are used in a broad range of applications from healthcare, medical research to pharmaceutical facilities.

When a pass-through wall-mounted or trolley hatch needs to be located in a firewall, PBSC can offer tested fire hatches with or without vision panels dependent on your requirements.

Also known as Pass Box, Pass-Through, Stainless Steel Pass Through, Through Box and Trolley Box.

Technical Specification

  • Test Certification to BS476 part 22
  • PBSC reserve the right to introduce changes in performance, configuration and technology, dimension, weights and materials in the course of technical progress. Images may not be accurate
  • Some of the information/images/equipment described or shown may only be available at extra cost. Features & specifications will vary. Please contact PBSC for specific design options.


  • Internal Support Shelves, Glass or Stainless-Steel UV Lights
  • Electro-Mechanical Interlock System
  • Vision Panels
  • Stainless Steel Support Frame
  • Active Airflow