ANSI B16.5 150LBS Slip On Raised Face Carbon Steel Flange

Slip On flanges or SO flanges are commonly lower in price than weld-neck flanges, and to this effect are a popular choice for our customers.It is welded both inside and out to provide suffcient strength and prevent leakage.

Product Details

        Slip On Flanges are preferred by some contractors, over the Weld-neck, because of the lower initial cost. However, this may be offset by the added cost of the two fillet welds required for proper installation. The strength of the slip-on flange is ample for it’s rating, but its life under fatigue conditions is considered to be only one-third that of the weld-neck flange.

         The slip on flange may be attached to the end of a piece of pipe or to one or more ends of a pipe fitting. The slip-on flange is positioned so the inserted end of the pipe or fitting is set back or short of the flange face by the thickness of the pipe wall plus 1/8 of an inch. This allows for a fillet weld inside the SO flange equal to the thickness of the pipe wall without doing any damage to the flange face. The back or outside of the flange is also welded with a fillet weld.

       Slip On flanges or SO flanges are commonly lower in price than weld-neck flanges, and to this effect are a popular choice for our customers.

It is welded both inside and out to provide suffcient strength and prevent leakage.

       Slip-on flanges are all bored slightly larger than the O.D. of the pipe. They are preferred over welding neck flanges bu many users due to their lower intial cost, but final intallation cost is probably not much less than that of the welding neck flange because of the additional welding involved.    

ADVANTAGES OF SLIP ON FLANGES:

Low cost installation

Less time needed to spent on ensuring the accuracy of the cut pipe

They are somewhat easier to align

The slip-on flanges have low hub because the pipe slips into the flange before welding

The flange is welded both inside and outside to provide sufficient strength

They prevent leakage

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