Stainless Steel BSP Male Threaded Double Nipple Pipe Extension Fitting | 1/2" 3/4" 1"

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Stainless Steel BSP Male Threaded Double Nipple Pipe Extension Fitting | 1/2" 3/4" 1"

Name: Stainless Steel BSP Male Threaded Double Nipple Pipe Extension Fitting | 1/2" 3/4" 1"
Brand: HomeDIYer
Price: 2.24 USD
Availability: InStock

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Thread Dia&Length: 304 & 1&2" & 38mm

Material: 304 Stainless Steel

Amount: 1Pcs

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$2.24 USD

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BSP Double Nipple Pipe Fittings — Extend or Connect Threaded Lines Without Leaks

Plumbers, maintenance technicians, and DIY homeowners know the frustration of a threaded port that's just a few inches too far apart — or a corroded nipple that's seized inside a valve body. These stainless steel BSP double nipple pipe extension fittings give you a direct, all-metal solution: male BSP threads on both ends, machined to standard tolerances, so you can bridge gaps, extend runs, or replace worn nipples without adapters or improvised fixes.

Each fitting is a single-piece male-threaded pipe nipple machined from solid stainless steel bar stock. Available in three grades — 201, 304, and 316 stainless steel — and three thread diameters: 1/2" BSP (DN15), 3/4" BSP (DN20), and 1" BSP (DN25). Lengths range from 38mm (≈1.5") up to 500mm (≈19.7"), sold individually (1 Pcs) or as a pair (2 Pcs) for back-to-back installations. Thread pitch follows BSP (BSPP/G-thread) standards.

Typical use cases include extending water supply lines behind walls, connecting pressure gauges and sensors to pipe manifolds, replacing corroded nipples in HVAC chilled-water loops, and building custom stainless steel pipe assemblies for food-processing or marine environments where a stainless steel BSP pipe nipple with corrosion resistance is non-negotiable.

🔗 Thread Compatibility: BSP (BSPP / G-thread) parallel male threads — fits standard BSP female sockets, valves, and fittings. Not compatible with NPT or metric threads. Confirm your existing fittings are BSP before ordering.

✅ Key Features of These BSP Double Nipple Pipe Fittings

🔩Male Threads on Both Ends — True double-nipple design lets you connect two female-threaded ports directly, eliminating the need for couplings or unions in tight spaces.
🛡️Three Stainless Steel Grades — Choose 201 for budget-conscious indoor jobs, 304 for general-purpose water and air service, or 316 for chloride-rich, marine, or chemical environments where long-term corrosion resistance matters.
📏Wide Length Range (38–500mm) — Seven length options from 38mm (≈1.5") to 500mm (≈19.7") cover everything from close-nipple connections to extended pipe runs, reducing the need for additional couplings.
⚙️Machined BSP Thread Profile — Threads are cut to BSP (G-thread) dimensional standards for consistent engagement with valves, manifolds, pressure gauges, and female BSP fittings across plumbing and industrial applications.
🌊Suitable for Water, Air, and Mild Fluid Service — Stainless steel construction handles potable water, compressed air, steam (low-pressure), and mild chemical lines where carbon steel or brass fittings would corrode or contaminate the media.
📦Single or Pair Quantity Options — Order 1 Pcs for a single replacement or repair, or 2 Pcs when you need matching nipples for symmetrical installations such as bypass loops or dual-port manifolds.

📐 Technical Specifications — Stainless Steel BSP Double Nipple Pipe Fitting

Product Type	Male Threaded Double Nipple Pipe Extension Fitting
Thread Standard	BSP (BSPP / G-thread) — parallel male threads both ends
Thread Diameters	1/2" BSP (DN15) · 3/4" BSP (DN20) · 1" BSP (DN25)
Available Lengths	38mm (≈1.5") · 40mm (≈1.6") · 45mm (≈1.8") · 100mm (≈3.9") · 150mm (≈5.9") · 200mm (≈7.9") · 300mm (≈11.8") · 400mm (≈15.7") · 500mm (≈19.7")
Material Options	201 Stainless Steel · 304 Stainless Steel · 316 Stainless Steel
Surface Finish	See variant options
Working Pressure	See variant options — typically 150–300 PSI for standard schedule at ambient temp; confirm for your application
Compatible Media	Water, air, steam (low-pressure), mild chemicals (grade-dependent)
Quantity per Order	1 Pcs or 2 Pcs (select above)
Country of Origin	Contact us to confirm

⚠️ Heads up: BSP and NPT threads are not interchangeable. Verify your existing ports use BSP (G-thread) before ordering. When in doubt, measure thread pitch and diameter or send us a photo.

❓ Frequently Asked Questions

How do I choose the right length for my BSP double nipple fitting?

Measure the gap between the two female-threaded ports you need to bridge, then add allowance for thread engagement — typically 8–12mm per end. For example, a 100mm (≈3.9") nipple generally provides about 76–84mm of exposed pipe between two fittings. When in doubt, size up rather than down.

What pressure rating can I expect from these pipe nipples?

Pressure capacity depends on pipe diameter, wall thickness, and the grade of stainless steel. For standard schedule pipe nipples in 1/2"–1" BSP, working pressures typically range from 150 to 300 PSI at ambient temperature. Always verify with your system engineer for high-pressure or elevated-temperature applications.

Are these fittings suitable for outdoor or marine use?

316 stainless steel offers the strongest resistance to chloride and salt-spray environments and is generally recommended for coastal or marine installations. 304 stainless steel performs well in most outdoor settings with moderate humidity. 201 stainless steel is best suited for indoor or low-humidity applications.

What thread standard do these fittings use — BSP or NPT?

These fittings use BSP (British Standard Pipe) parallel threads (BSPP / G-thread). BSP and NPT threads are not interchangeable. If your existing plumbing uses NPT threads, please confirm compatibility before ordering or contact us for guidance.

Which stainless steel grade should I choose — 201, 304, or 316?

201 is a cost-effective option for dry or low-corrosion indoor environments. 304 is the most widely used grade, offering solid corrosion resistance for water, air, and mild chemical service. 316 adds molybdenum for superior resistance to chlorides, salt water, and harsh chemicals — ideal for marine, food-processing, or chemical plant use.

Do I need thread sealant or PTFE tape with these fittings?

Yes. BSP parallel threads (BSPP) rely on a face seal or O-ring for a pressure-tight joint, but wrapping threads with PTFE tape or applying thread sealant compound is generally recommended to prevent weeping, especially in liquid service. For gas lines, always follow local code requirements.

Can these nipples be used with food-grade or potable water systems?

304 and 316 stainless steel are commonly used in food-processing and potable water applications. However, compliance with local plumbing codes (e.g., NSF/ANSI 61) is the installer's responsibility. Contact us if you need documentation for your specific application.

🛒 Select your thread diameter, length, material, and quantity above, then add to cart — ships from our US warehouse.

Stainless Steel BSP Male Threaded Double Nipple Pipe Extension Fitting | 1/2" 3/4" 1"

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Beschreibung

BSP Double Nipple Pipe Fittings — Extend or Connect Threaded Lines Without Leaks

✅ Key Features of These BSP Double Nipple Pipe Fittings

📐 Technical Specifications — Stainless Steel BSP Double Nipple Pipe Fitting

❓ Frequently Asked Questions

Stainless Steel BSP Male Threaded Double Nipple Pipe Extension Fitting | 1/2" 3/4" 1"

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