Heavy-Wall Short Butt-Weld Tri-Clamp Ferrule (316L)

Compact Low-Profile Heavy-Wall Ferrule Construction

The Heavy-Duty Tri-Clamp Short Ferrule combines a compact short-tangent overhang with a thickened 316L stainless steel weld wall. Across 1 inch, 1-1/2 inch, and 2 inch sizes, overall length (A) is 0.500 inch (12.7 mm), while across 2-1/2 inch, 3 inch, and 4 inch sizes, overall length (A) is 0.625 inch (15.9 mm).

Distinction from Standard 14WMP and Heavy-Duty Long Ferrules

While outer tube diameter (C from 1.000 inch to 4.000 inch) and clamp flange diameter (D from 1.984 inch to 4.682 inch) match standard Tri-Clover hardware, the internal bore (dimension B) is reduced to thicken the wall: 1 inch through 3 inch sizes have a 0.120 inch wall (bore B = 0.760 inch to 2.760 inch) compared with 0.065 inch on standard 14WMP ferrules, and the 4 inch size has a 0.188 inch wall (bore B = 3.624 inch). Unlike the Heavy-Duty Long Ferrule (1.125 inch length), this short version minimizes nozzle stand-off height on tank heads, pump casings, and valve blocks.

Weld Heat Control and Bore Matching

Because the 0.500 inch to 0.625 inch length places the weld prep close to the clamp flange and gasket groove, manual TIG welding with heat-sink control is typically used rather than closed-head orbital clamps.

Pre-Order Bore and Gasket Checks

Confirm that the mating nozzle or heavy-wall tube matches the reduced bore ID (0.760 inch to 3.624 inch) so the joint does not create an unplanned internal ledge.