Stainless Steel Collar

Seamless collar rings are usually used with seamless steel pipes, and their relevant dimensions are related to the outer diameter of the seamless steel pipe with the corresponding nominal diameter.

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Forming Process

Cold Pressing

Taking advantage of the characteristics of plastic deformation of metal, the microscopic convex peaks on the surface of the workpiece are flattened by applying pressure, thereby reducing the surface roughness. High pressure is applied in the mold cavity to make a compact molded blank. Including surface rolling, surface extrusion processing, etc. Suitable for polycarbonate, polypropylene and other materials. By cold pressing processing, the tensile strength and elastic modulus of the material can be improved

Comprehensive Size Ranges

Seamless Vanstone rings: DN15-DN600 (½"-48")

Seamless collar rings are usually used with seamless steel pipes, and their relevant dimensions are related to the outer diameter of the seamless steel pipe with the corresponding nominal diameter. The following is the dimension information of the DN15 to DN600 seamless collar rings:

DN15: Outer diameter 22mm.
DN20: Outer diameter 27mm.
DN25: Outer diameter 34mm.
DN32: Outer diameter 42mm.
DN40: Outer diameter 48mm.
DN50: Outer diameter 60mm.
DN65: Outer diameter 76mm (partially there are also 73mm).
DN80: Outer diameter 89mm.
DN100: Outer diameter 114mm.
DN125: Outer diameter 140mm.
DN150: Outer diameter 168mm.
DN200: Outer diameter 219mm.
DN250: Outer diameter 273mm.
DN300: Outer diameter 324mm.
DN350: Outer diameter 360mm.
DN400: Outer diameter 406mm.
DN450: Outer diameter 457mm.
DN500: Outer diameter 508mm.
DN600: Outer diameter 610mm.

The models of seamless collar rings are usually divided according to the material, connection method, execution standards, etc. In terms of materials, there are carbon steel, stainless steel, etc.; the connection method is generally welding, etc.; the common standards for implementing standards include GB/T 12459 and other related pipe fitting standards. The wall thickness is usually between 3 and 20mm, and the specific values will vary depending on the use scenario, pressure requirements, etc.

Supports SCH5S-XXS pressure ratings, ideal for oil/gas pipelines and cryogenic applications.