IDF-15 Sanitary Welding Union Male End with ACME Thread in SS304 / SS316L

Component Role & External ACME Thread Profile

The IDF-15 welded union male end forms the externally threaded half of an International Dairy Federation (IDF) hygienic pipe union. Its rear neck butt-welds directly to inch-OD stainless steel tubing, while its front body features external ACME threads and a recessed gasket seat that aligns with a mating IDF-14 welding liner when tightened by an IDF-13H hex nut or IDF-13R round nut.

Material Grades & Dimensional Scope

Manufactured in SS304 and SS316L stainless steel across six nominal sizes from 1.0" through 4.0" (1.0", 1.5", 2.0", 2.5", 3.0", and 4.0"), the IDF-15 male end matches tube outer diameters B from 25.4 mm to 101.6 mm and bore diameters A from 22.2 mm to 97.6 mm. In the dimensional schedule, external thread specifications C run from 37.13×8TPI ACME (1.0") through 94.16×8TPI ACME (3.0") to 125.9×6TPI ACME (4.0"), with axial height H at 21.5 mm (1.0"–3.0") and 30 mm (4.0").

Installation & Ordering Notes

Keep the external ACME threads and internal gasket recess clean and free of weld spatter during butt-welding. Confirm nominal IDF tube size and alloy grade (SS304 or SS316L) when ordering replacement male ends or complete IDF union sets.