304 Stainless Steel Weld Nipple BSP Screwed Pipe Fitting | 1/4" to 4" (DN8–DN100)

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304 Stainless Steel Weld Nipple BSP Screwed Pipe Fitting | 1/4" to 4" (DN8–DN100)

Name: 304 Stainless Steel Weld Nipple BSP Screwed Pipe Fitting | 1/4" to 4" (DN8–DN100)
Brand: HomeDIYer
Price: 3.79 USD
Availability: InStock

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Sizes: BSP 1&4" (DN8)

Amount: 1 pcs

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$3.79 USD

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304 Stainless Steel Weld Nipple BSP Screwed Pipe Fitting — Reliable Connections for Tanks, Vessels & Pipework

When a leaking tank fitting or a corroded pipe nipple brings your project to a halt, you need a replacement that installs cleanly and holds up long-term. These 304 stainless steel weld nipple BSP screwed pipe fittings are built for fabricators, plumbers, and DIY builders who need a dependable threaded connection point on tanks, pressure vessels, or pipe runs — without the guesswork of mismatched threads or substandard material.

Each fitting is a 100mm (≈3.94") weld nipple machined from 304 stainless steel, with a plain weld end and male BSP (British Standard Pipe) threads on the opposite end. Available in 11 BSP sizes from 1/4" (DN8) through 4" (DN100), covering the full range of common pipe bore sizes. Sold individually (1 pcs per order) so you can order exactly what your job requires.

Typical applications include tank outlet fittings for water storage and chemical vessels, inline connections on stainless steel process pipework, and threaded nozzle points on fabricated enclosures — making these a go-to choice for anyone searching for a BSP weld nipple stainless steel fitting, a tank outlet nipple, or a screwed pipe fitting for food-grade or industrial use.

🔗 Thread Standard: BSP (British Standard Pipe) — 55° thread angle. Not compatible with NPT (60°) fittings. Confirm your system uses BSP threads before ordering.

✅ Key Features of These 304 Stainless Steel BSP Weld Nipple Fittings

🔩Full BSP Size Range — Available from BSP 1/4" (DN8) to BSP 4" (DN100), covering the most common nominal bore sizes for residential, commercial, and light industrial pipe systems.
🛡️304 Stainless Steel Construction — Resists rust, oxidation, and mild chemical exposure, making these weld nipples suitable for water, air, steam, and food-contact applications where carbon steel would corrode.
📏100mm Fixed Length — The 100mm (≈3.94") tube length provides enough weld engagement and thread projection for most tank wall thicknesses and pipe flange installations without excessive protrusion.
⚙️Weld-Ready Plain End — The plain (un-threaded) end is machined for clean TIG or MIG welding to stainless steel tanks, vessels, or pipe spools, reducing prep time on fabrication jobs.
🔄Male BSP Threaded Outlet — The threaded end accepts standard BSP female fittings, valves, and gauges, giving you a secure, leak-resistant connection point without additional adapters in most BSP plumbing systems.
🏭Versatile Across Industries — Used in water treatment, food processing, HVAC, marine fabrication, and general plumbing — anywhere a stainless screwed pipe fitting with a weld-in design is specified.

📐 Technical Specifications — 304 Stainless Steel BSP Weld Nipple

Product Type	Weld Nipple — BSP Screwed Pipe Fitting
Material	304 Stainless Steel (1.4301)
Thread Standard	BSP (British Standard Pipe) — parallel or taper; see variant
Available Sizes	BSP 1/4" (DN8), 3/8" (DN10), 1/2" (DN15), 3/4" (DN20), 1" (DN25), 1-1/4" (DN32), 1-1/2" (DN40), 2" (DN50), 2-1/2" (DN65), 3" (DN80), 4" (DN100)
Overall Length	100mm (≈3.94")
End Configuration	One plain weld end / One male BSP threaded end
Finish	Mill / brushed stainless (natural)
Quantity per Order	1 piece
Wall Thickness	See variant options (varies by nominal bore)
Outer Diameter	See variant options (varies by BSP size)
Pressure Rating	Contact us to confirm (depends on wall thickness and weld quality)
Suitable Media	Water, air, steam, mild chemicals, food-contact (confirm for specific media)
SKU Prefix	PENG0266xx

⚠️ Sizing note: BSP nominal sizes refer to bore diameter, not the actual outer diameter of the tube. Always verify the OD and thread dimensions against your mating fitting before installation.

❓ Frequently Asked Questions

How do I choose the right BSP weld nipple size?

Match the BSP thread size to your existing pipe or fitting. BSP sizes refer to the nominal bore, not the actual outer diameter. For example, a BSP 1/2" (DN15) nipple has an OD of approximately 21.3mm (≈0.84"). Always measure your mating fitting's thread or bore before ordering. If in doubt, select the next size up and use a reducer.

What is the pressure rating of these weld nipples?

304 stainless steel weld nipples generally handle working pressures up to 150 PSI for standard schedule pipe applications, though actual ratings depend on wall thickness, weld quality, and operating temperature. For high-pressure systems, contact us to confirm suitability.

Can these fittings be used outdoors or in wet environments?

Yes. 304 stainless steel offers good corrosion resistance in most outdoor and wet environments. For marine or high-chloride environments, 316 stainless steel is typically recommended. These fittings are suitable for water, air, and mild chemical service in most outdoor installations.

Are these BSP or NPT thread fittings?

These are BSP (British Standard Pipe) threaded fittings. BSP and NPT threads are not directly interchangeable — BSP uses a 55° thread angle while NPT uses 60°. Always confirm your system uses BSP threads before ordering. If you need NPT, contact us about availability.

What is a weld nipple and how is it installed?

A weld nipple is a short length of pipe with male BSP threads on one end and a plain (un-threaded) weld end on the other. Installation involves welding the plain end into a hole in your tank, vessel, or pipe spool, then connecting your valve, gauge, or fitting to the BSP threaded end. TIG welding is typically recommended for stainless steel to maintain corrosion resistance at the weld zone.

What sizes are available and what do DN8–DN100 mean?

Available sizes range from BSP 1/4" (DN8) to BSP 4" (DN100). DN (Diamètre Nominal / Nominal Diameter) is the metric designation for pipe bore size. DN8 = BSP 1/4", DN15 = BSP 1/2", DN25 = BSP 1", DN50 = BSP 2", and DN100 = BSP 4". Select your size from the variant dropdown above.

Is the 100mm length the overall length of the fitting?

Yes — 100mm (≈3.94") is the overall tube length from the weld end face to the tip of the threaded end. This length is generally sufficient for most tank wall thicknesses and standard flange installations. Confirm this suits your installation depth before ordering.

🛒 Select your size above, then add to cart — ships from our US warehouse.

304 Stainless Steel Weld Nipple BSP Screwed Pipe Fitting | 1/4" to 4" (DN8–DN100)

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304 Stainless Steel Weld Nipple BSP Screwed Pipe Fitting — Reliable Connections for Tanks, Vessels & Pipework

✅ Key Features of These 304 Stainless Steel BSP Weld Nipple Fittings

📐 Technical Specifications — 304 Stainless Steel BSP Weld Nipple

❓ Frequently Asked Questions

304 Stainless Steel Weld Nipple BSP Screwed Pipe Fitting | 1/4" to 4" (DN8–DN100)

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