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

Thickened Weld-Neck and Long-Tangent Geometry

The Heavy-Duty Tri-Clamp Long Ferrule is machined from 316L stainless steel with a thickened tube wall while preserving standard Tri-Clover flange outside diameters (D = 1.984 inch on 1 inch and 1-1/2 inch sizes up to 6.562 inch on 6 inch size). Across 1 inch to 4 inch sizes, overall length (A) is 1.125 inch (28.6 mm), stepping up to 1.500 inch (38.1 mm) at 6 inch.

Distinction from Standard-Wall 14AMP and Heavy-Duty Short Ferrules

Although this ferrule shares the 1.125 inch (28.6 mm) axial length and outer diameter of a standard 14AMP long ferrule, its internal bore (dimension B) is smaller to create a heavier weld wall: on 1 inch through 3 inch sizes, bore B is 0.760 inch to 2.760 inch (0.120 inch wall versus standard 0.065 inch wall), and on 4 inch size bore B is 3.624 inch (0.188 inch wall). Compared with the Heavy-Duty Short Ferrule (0.500 to 0.625 inch length), the long tangent gives fuller weld access on nozzles.

Bore Step Awareness and Mating Compatibility

The clamp face mates with standard Tri-Clamp gaskets and clamps, but the reduced bore ID creates an internal step if welded directly to thin-wall 16-gauge tubing or paired with a standard-bore ferrule.

Ordering and Nozzle Prep Checks

Verify the mating pipe or nozzle schedule against published bore ID B before welding, especially on the 6 inch variant (B = 5.782 inch, 0.109 inch wall).