3A Bevel Seat 15WF ACME-Threaded Short Butt-Weld Ferrule

15WF ACME-Threaded Male Ferrule Construction

The 15WF Bevel Seat Threaded Short Ferrule is the externally threaded male half of a sanitary bevel-seat union. Machined from 304L or 316L stainless steel, it combines coarse external ACME threads on the outer barrel, an internal conical seat recess at the union face, and a short butt-weld neck sized for sanitary process tubing.

Mating Mechanics with 14WF Liner and 13H Hex Nut

Unlike the unthreaded 14WF plain ferrule retained behind a 13H nut shoulder, the 15WF ferrule provides the external ACME thread (major diameter D from 1.462 inch on 1 inch size to 4.859 inch on 4 inch size) onto which the 13H union nut threads. Its internal recess diameter (E from 1.093 inch to 4.125 inch) receives the conical nose of the mating 14WF ferrule or bevel-seat gasket.

Compact Axial Envelope Across 1" to 4" Sizes

The dimensional drawing covers six nominal sizes: 1 inch, 1-1/2 inch, 2 inch, 2-1/2 inch, 3 inch, and 4 inch. Weld end OD (C) spans 1.000 inch to 4.000 inch and bore ID (B) spans 0.870 inch to 3.834 inch, while overall length (A) runs from 0.688 inch on 1 inch size up to 1.062 inch on 4 inch size.

Weld Heat Control and Thread Protection

Because the 0.688 inch to 1.062 inch length places the butt-weld joint close to the ACME thread roots, control weld heat input to prevent thread distortion.