PTB and PTC Series Pull Boxes

PTB and PTC pull boxes are installed in conduit systems (typically bridges/refineries) to:

  • Act as pull and splice boxes
  • Protect conductors in threaded rigid conduit
  • Interconnect lengths of conduit
  • Change conduit direction
  • Provide access to conductors for maintenance and future system changes
Body Material Painted steel or 316L stainless steel
Size Range 12" through 48"
Hub Sizes 1" through 6"
Hub Material Steel; malleable iron; stainless steel; aluminum
Cover Bolt Material 316L stainless steel
Standard Finish Polyester powder coated over zinc primer or electro-chemical polished stainless steel


  • More internal cubic capacity for different sized conductors
  • Accurately tapped, tapered threads (NPT) for tight, rigid joints and ground continuity
  • PTB - 90° pull boxes; PTC - straight pull boxes

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