304 Stainless Steel BSP Male Threaded Pipe Nipple | 1/2"-1" | 30-400mm Lengths

Match the BSP size to your existing pipe's nominal bore — 1/2" BSP (DN15) fits 1/2" nominal pipe, 3/4" BSP (DN20) fits 3/4" nominal pipe, and so on. For length, measure the gap between the two female fittings you need to connect, then add allowance for thread engagement — typically 8–15mm per end depending on size. For example, to bridge a 50mm gap with 1/2" BSP fittings, a 70mm nipple generally provides enough thread engagement on both ends. When in doubt, size up slightly.

304 stainless steel has a tensile strength of approximately 515 MPa (75,000 PSI). For threaded BSP pipe nipples of this type, working pressure is generally up to 150 PSI (≈10 bar) in standard water and fluid service. Actual ratings depend on temperature, wall thickness, and installation quality. For high-pressure, steam, or elevated-temperature applications, please contact us to confirm suitability before ordering.

304 stainless steel offers good corrosion resistance in most outdoor, damp, and mildly corrosive environments, including freshwater plumbing, irrigation, and general industrial use. For saltwater, coastal, or highly chlorinated environments, 316 stainless steel is typically recommended for superior resistance to chloride-induced corrosion. Contact us if you need guidance on material selection for your specific environment.

BSP and NPT threads are not directly interchangeable. BSP uses a 55° thread angle while NPT uses 60°, and thread pitches differ by size. Mixing them without a dedicated BSP-to-NPT adapter will generally result in leaks or cross-threading. Always verify your system's thread standard before ordering. If you need a conversion adapter, contact us for guidance.

Yes. Apply 2–3 wraps of PTFE thread seal tape to both male ends before assembly. BSPP (parallel) threads require sealant to achieve a leak-free connection, as the threads themselves do not seal by taper. BSPT (tapered) threads also benefit from PTFE tape. Hand-tight plus 1–2 turns with a wrench is generally sufficient — avoid overtightening stainless steel threads, as this can cause galling.

These 304 stainless steel BSP pipe nipples are generally compatible with water, air, oil, and many non-aggressive chemicals. Common applications include potable water plumbing, garden irrigation manifolds, compressed air distribution lines, and light industrial fluid transfer. For aggressive acids, strong alkalis, or chlorine-rich media, consult a materials compatibility chart or contact us before use.

A pipe nipple (this product) has male threads on both ends and is used to extend a pipe run or connect two female-threaded fittings, valves, or ports. A pipe coupling has female threads on both ends and joins two male-threaded pipe ends. Choose a nipple when you need to bridge a gap between two female ports — for example, connecting a female-threaded valve to a female-threaded elbow.

304 stainless steel is widely used in food-grade and potable water applications due to its corrosion resistance and non-reactive surface. However, local plumbing codes may require specific certifications (such as NSF/ANSI 61) for potable water use in your jurisdiction. We recommend verifying local code requirements before installing these fittings in a drinking water system. Contact us if you need documentation on material composition.