An ASTM A106 Pipe Nipple is a short externally threaded connector placed between two female-threaded components. It can extend a pipe run, bridge spacing between a valve and fitting, or create a replaceable transition at an equipment port. Its defining technical feature is the seamless tube body, which has no longitudinal weld seam. This makes the material route easy to identify in project documentation and supports more consistent machining of the threaded ends. The fitting should be specified as one complete item, with the mating thread system and required installed length confirmed from the drawing.
Components
Seamless pipe body
provides the pressure-containing connection section.
External threaded ends
engage compatible female-threaded ports or fittings.
Unthreaded center section
establishes the required end-to-end spacing.
Protective end caps for shipment
help shield finished threads before installation.
Product Parameters
|
Item |
Specification |
|
Pipe Material |
Seamless steel pipe, ASTM A106 Grade B |
|
Nipple Standard |
ASTM A733 |
|
Thread |
NPT, ASME B1.20.1 |
|
Size Range |
1/8 in. to 6 in. |
|
Wall Options |
SCH40, SCH80/XS/XH, SCH160, XXH |
|
Length |
Standard and special-order lengths |
|
End Form |
External threaded ends |
Product Advantages
Traceable specification
ASTM A106 Pipe Nipple combines a stated pipe grade, nipple standard, and thread standard.
01
Seamless construction
The body contains no longitudinal welded joint.
02
Dimensional flexibility
Several diameters, wall options, and lengths are available.
03
Drawing-based supply
Special lengths can be defined for project-specific connection spacing.
04
Main Applications
Threaded extensions between valves, couplings, unions, and other female-threaded fittings. The ASTM A106 Pipe Nipple can be selected for these connections when the specified NPT thread, wall schedule, and end-to-end length match the piping drawing.
Equipment connections that need a defined steel pipe stand-off or transition length.
Maintenance sections used to replace a worn or incorrectly sized threaded connector.
Process and utility piping where a seamless Grade B material basis is specified.
FAQ
Q: What material basis is used?
A: The seamless steel pipe conforms to ASTM A106 Grade B. For an ASTM A106 Pipe Nipple, the nominal size, schedule, thread standard, and required length should be stated on the order.
Q: Which thread specification applies?
A: NPT threads can be supplied in accordance with ASME B1.20.1.
Q: Can a nonstandard length be requested?
A: Yes. The required end-to-end length can be stated on the drawing or order schedule.
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