PCD Fitting four Legged type : The four lug type is the most common type of Flange End protector. The Four Lug type fixes itself firmly in the PCD holes of the Flanges & main body of the cap protects the serrated surface of the Flange.
Total Flange Protector : This type is more encompassing the total flange not just limited to bore or serrated surface & offers more safety to the flanges. Used for covering the flanges. Fits as a snap fit on the flange surface. MOC - LDPE, Vinyl, metal
Bore Fitting Type : Irrespective of the pressure rating this type fits itself in to the bore of flanges or Valves. So Bore fitting offers the convenience one cap for each size. Used for fitting on the bore ID of the flanges of valves. Sizes - 1/2" to 60". MOC - LDPE, Vinyl