Peep Door / View Port / Sight Port

  • Peep doors are provided in radiant section of the heater to allow viewing of burner flames, tubes, tube supports, and refractory

  • Critical areas of observation include burner flames and pilots, hottest portion of tubes

  • Peep doors should be accessible from Grade or from Platforms.

Types of Peep Doors / View Ports / Sight Ports

Glass Peep Door

  • Consists of front glass pane, handle and flap

  • Handle is pulled down to lift the flap present behind the glass pane

  • Operator can look into the firebox through the glass pane

  • The glass pane is highly heat and breakage resistant

Download Glass Peep Door Flyer

Side Hinged Peep Door

  • Consists of a Spring Handle, Top Hinged Door

  • Hinged door is provided with ceramic fiber packing with SS Liner

  • Spring handle is lifted upward to open the door

Download Side Hinged Peep Door Flyer

Top Hinged Peep Door

  • Consists of a Spring Handle, Top Hinged Door

  • Hinged door is provided with ceramic fiber packing with SS Liner

  • Spring handle is lifted upward to open the door

Download Top Hinged Peep Door Flyer

Peep Door Blocks

  • Peep door block made from special vacuum manufacturing process. These offer the best strength and rigidity.

  • Peep door block made from Folded blanket module.

    Download Peep Door Blocks Flyer

Download Peep Door Reference List