Legend Valve 316-165 2" x 3-1/2" 316 SS Pipe Nipple

316 Stainless Steel Pipe Nipple

This 2" x 3-1/2" nipple is made from 316 stainless steel for corrosion resistance in plumbing systems. It suits installers who need a durable, weld-free connection between female-threaded components. The fitting handles water, oil, and gas lines in residential and commercial projects. It is not intended for buyers who require a different alloy or a longer threaded length.

Threaded installation with sealant

Apply pipe-thread sealant or tape to the male NPT threads before tightening into the mating fitting. Use a pipe wrench on the unthreaded centre section to avoid damaging the ends. Over-tightening can strip threads or crack the mating part, while under-tightening leaves a leak path. The nipple has no integral seal, so joint integrity depends entirely on correct thread preparation.

Verify thread size and system pressure

Confirm that the existing piping uses 2" NPT threads and that the 3-1/2" face-to-face length fits the available gap. Check the system's maximum operating pressure against the fitting's pressure class before ordering. Ensure the media is compatible with 316 stainless steel to avoid galvanic corrosion. This product carries a California Proposition 65 warning for listed chemicals.