Portable Derails

PD-4 Low-profile Portable Derail
The photo shows an PD-4 portable derail with a PDF-LP staff assembly and a BF-2D derail flag. Staff assemblies and signal flags are sold separately.

Low-Profile, Single-End Derails

  • New Model Numbers: PD-6L and PD-6R (replaces PD-5L and PD-5R)
  • Covers More Rail Sizes: Fits 80-141 lb rail (5″ to 7-7/16″)

In response to today’s demanding railroad environment, The Nolan Company has re-engineered our series of single-end portable derails —

  • Models PD-4L / PD-4R and PD-6L / PD-6R derails are fabricated from high-strength steel and incorporate a low-profile derail design that lowers their height above the rail head.
  • Model PDF-LP Staff Assembly (sold separately) can be used with either PD-4 or PD-6 derail.
  • DERAIL signal flags (sold separately) are double-sided, and available in blue (BF-2D) or red (BF-9D).

Nolan’s low-profile portable derails (PD-4L, PD-4R, PD-6L, and PD-6R) will derail all rolling stock including mainline locomotives when installed and used properly. See the individual product pages for detailed descriptions and specifications for each type of Nolan derail.

Double-End Derails

  • Model PD-2 is a lighter weight double-end derail designed specifically for use in mines.
  • Model PDF Staff Assembly (sold separately) is used with the PD-2 derail.
  • DERAIL signal flags (sold separately) are double-sided, and available in blue (BF-2D) or red (BF-9D).

Single End

Staff Assembly (For PD-4/PD-6)

Wedge

Double End for Mines

Staff Assembly (For PD-2)