BSP 90° Elbow Pipe Fitting — 304/316 Stainless Steel, 1-1/4" to 4", FF / FM / MM

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BSP 90° Elbow Pipe Fitting — 304/316 Stainless Steel, 1-1/4" to 4", FF / FM / MM

Name: BSP 90° Elbow Pipe Fitting — 304/316 Stainless Steel, 1-1/4" to 4", FF / FM / MM
Brand: HomeDIYer
Price: 33.59 USD
Availability: InStock

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Types:: 1-1&4"【FF】

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BSP 90° Elbow Pipe Fittings — Stainless Steel Direction Changes Without the Leak Risk

When a plumbing run hits a wall, a beam, or a tight mechanical space, a poorly made elbow fitting becomes the weakest point in the entire system. Contractors, facility maintenance teams, and serious DIYers who work with BSP-threaded pipe systems need a 90° elbow that holds pressure, resists corrosion, and threads on cleanly the first time — without chasing leaks after installation.

Each fitting is machined from Grade 304/316 stainless steel, combining the broad chemical resistance of 304 with the enhanced chloride resistance of 316 across the product range. Available in sizes from 1-1/4" (≈31.8mm) to 4" (≈101.6mm) with three end configurations — Female-Female (FF), Female-Male (FM), and Male-Male (MM) — so you can match the fitting directly to your existing pipe ends without adapters. Threads conform to BSP (British Standard Pipe) standards.

These BSP stainless steel elbow fittings are well suited for industrial water supply lines, compressed air distribution systems, irrigation manifolds, marine plumbing runs, and food-processing or dairy equipment where corrosion resistance and cleanability matter. The 90° turn angle makes them a go-to choice for tight-space pipe routing and wall-entry plumbing configurations.

🔗 Compatibility: Designed for BSP (British Standard Pipe) threaded systems. Available in BSPP (parallel) or BSPT (tapered) — confirm your pipe thread standard before ordering. Sizes 1-1/4" through 4" in FF, FM, and MM configurations.

✅ Key Features of These BSP 90° Stainless Steel Elbow Fittings

🔩Dual-Grade Stainless Construction — Manufactured from 304/316 stainless steel, offering corrosion resistance across a wide range of environments including outdoor, marine, and light chemical service.
📐True 90° Turn Geometry — Precision-formed elbow angle allows clean directional changes in BSP pipe runs without distorting flow path or creating turbulence-inducing transitions.
🔄Three End Configurations — FF (Female-Female), FM (Female-Male), and MM (Male-Male) options let you connect directly to your existing pipe ends without needing additional adapters or couplings.
📏Wide Size Range — Available from 1-1/4" through 4" nominal BSP sizes, covering most residential, commercial, and light industrial pipe routing applications in a single product line.
🧵BSP-Standard Threads — Threads are cut to BSP specification, ensuring consistent fit with BSP-threaded valves, pumps, manifolds, and pipe nipples commonly used in plumbing and process systems.
🏭Suitable for Multiple Media — Compatible with water, air, steam (within rated pressure limits), and food-grade liquids, making these fittings useful across plumbing, irrigation, compressed air, and sanitary piping applications.

📐 Technical Specifications — BSP 90° Elbow Stainless Steel Pipe Fittings

Product Type	90° Elbow Pipe Fitting
Thread Standard	BSP (British Standard Pipe)
Material	304/316 Stainless Steel
Available Sizes	1-1/4" (≈31.8mm), 1-1/2" (≈38.1mm), 2" (≈50.8mm), 2-1/2" (≈63.5mm), 3" (≈76.2mm), 4" (≈101.6mm)
End Configurations	FF (Female-Female), FM (Female-Male), MM (Male-Male)
Elbow Angle	90°
Working Pressure	See variant options — contact us to confirm by size
Temperature Range	Contact us to confirm for your application
Surface Finish	Machined stainless — natural mill finish
Packing	1 pc per order (multi-pack options available)
Applicable Standards	BSP thread per ISO 228 / BS 2779 (BSPP) or ISO 7 / BS 21 (BSPT)
Typical Applications	Water supply, compressed air, irrigation, marine plumbing, food processing

⚠️ Before ordering: Confirm whether your system uses BSPP (parallel) or BSPT (tapered) threads — these are not interchangeable. If unsure, measure your pipe thread OD and pitch, or contact us with your pipe specs.

❓ Frequently Asked Questions

How do I choose the right size BSP elbow fitting?

Match the fitting size to your pipe's nominal BSP thread size — not the pipe's outer diameter. For example, a 1-1/2" BSP fitting connects to pipe with a 1-1/2" BSP thread (approximately 47.8mm / 1.88" OD). When in doubt, measure the thread OD and compare to a BSP nominal size chart. If you're unsure, contact us with your measurements and we'll help you select the correct size.

What pressure rating do these stainless steel elbow fittings carry?

Pressure ratings vary by size and end configuration. Generally, 304/316 stainless steel BSP fittings in this size range are rated for working pressures typically between 150 PSI and 1,000 PSI depending on the nominal size. Larger sizes typically carry lower pressure ratings. Contact us to confirm the rated pressure for your specific size and application before installation in pressurized systems.

Are these fittings suitable for outdoor or marine use?

Yes. Both 304 and 316 stainless steel offer strong corrosion resistance in outdoor environments. For coastal, marine, or chloride-rich environments, 316 stainless steel is generally preferred due to its added molybdenum content, which improves resistance to pitting and crevice corrosion. These fittings are suitable for outdoor plumbing, irrigation systems, and marine applications in most cases.

What is the difference between FF, FM, and MM end configurations?

FF (Female-Female) has internal BSP threads on both ends — use when connecting two male-threaded pipe ends or nipples. FM (Female-Male) has one internal and one external threaded end — useful for extending a run or changing direction mid-line. MM (Male-Male) has external BSP threads on both ends — use when connecting into two female-threaded sockets or valves. Choose based on the thread type of the components you are connecting to.

Are BSP threads compatible with NPT fittings?

BSP and NPT threads are not directly interchangeable. BSP uses a 55° thread angle while NPT uses 60°, and the thread pitches differ. In some cases BSPP (parallel) and NPT threads can be made to seal with PTFE tape, but this is not recommended for high-pressure or critical applications. Use a dedicated BSP-to-NPT adapter if you need to connect the two thread standards reliably.

What fluids or media are these fittings compatible with?

304/316 stainless steel BSP elbow fittings are generally compatible with water, air, steam (within appropriate pressure and temperature limits), mild chemicals, and food-grade liquids. They are not recommended for strong acids, concentrated chlorine solutions, or highly corrosive media without confirming material compatibility. Contact us if you have a specific fluid or process application.

Do I need thread sealant when installing these fittings?

For BSPT (tapered) threads, PTFE thread tape or pipe dope is typically recommended to achieve a leak-free seal. For BSPP (parallel) threads, a bonded seal washer or O-ring face seal is generally used rather than tape alone. Always follow the sealing method appropriate for your thread type, system pressure, and the fluid being carried.

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

BSP 90° Elbow Pipe Fitting — 304/316 Stainless Steel, 1-1/4" to 4", FF / FM / MM

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BSP 90° Elbow Pipe Fittings — Stainless Steel Direction Changes Without the Leak Risk

✅ Key Features of These BSP 90° Stainless Steel Elbow Fittings

📐 Technical Specifications — BSP 90° Elbow Stainless Steel Pipe Fittings

❓ Frequently Asked Questions

BSP 90° Elbow Pipe Fitting — 304/316 Stainless Steel, 1-1/4" to 4", FF / FM / MM

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