304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"
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304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"

304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male & Female 1/4" to 1-1/2"

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By HomeDIYer®

Price:
$3.85 USD
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In stock (500 units), ready to be shipped

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Description

 

BSP Blanking End Cap Pipe Fittings — Seal Unused Ports with 304 Stainless Steel

Unused pipe ports are a common source of leaks, contamination, and pressure loss in plumbing, hydraulic, and pneumatic systems. Whether you're capping off a spare outlet on a manifold, closing a test port after commissioning, or blanking an unused branch on a water distribution line, you need a fitting that threads in cleanly and holds without corroding. These 304 stainless steel BSP blanking end caps are built for exactly that job — available in both male and female configurations so you can match whatever port type you're working with.

Each cap is machined from solid 304 stainless steel with a hex-head body for easy wrench installation. Available in male (external thread) and female (internal thread) versions, covering BSP sizes from 1/4" (≈6mm) to 1-1/2" (≈38mm). Sold individually or in packs of 2 or 5 — select your size, thread type, and pack quantity from the variant options above.

Typical applications include capping spare ports on hydraulic manifolds and valve blocks, sealing unused outlets on water heaters and boilers, blanking test points on compressed air lines, and closing off branch connections during phased plumbing installations. These fittings are a go-to for plumbers, maintenance engineers, and serious DIYers who need a reliable BSP pipe end cap that won't rust out over time.

🔗 Thread Standard: BSPP (British Standard Parallel Pipe) — fits standard BSP-threaded ports. Not compatible with NPT threads. Use PTFE tape or thread sealant for a leak-free connection.

✅ Key Features of These BSP Stainless Steel Blanking End Caps

  • 🔩Male & Female Options — Available in both external (male) and internal (female) BSP thread configurations, so you can seal any unused port regardless of thread type.
  • 🦾304 Stainless Steel Construction — Resists rust, oxidation, and mild chemical exposure — a significant step up from brass or zinc-plated carbon steel blanking plugs in wet or outdoor environments.
  • 📐Wide Size Range — Covers BSP sizes from 1/4" to 1-1/2" (male) and 1/4" to 1-1/4" (female), making this listing a practical one-stop source for stainless steel BSP pipe end caps across multiple port sizes.
  • 🔧Hex-Head Body for Wrench Tightening — The hexagonal outer profile allows a standard open-end or adjustable wrench to apply proper torque, reducing the risk of cross-threading or under-tightening compared to slotted or knurled caps.
  • 📦Flexible Pack Sizes — Order 1, 2, or 5 pieces per size to match your project scope — whether you need a single replacement cap or a small stock for a multi-port manifold job.
  • 🏭Broad Application Compatibility — Suitable for water, air, oil, and many mild fluid systems; commonly used in plumbing, hydraulics, pneumatics, and industrial maintenance where a stainless steel blanking plug BSP fitting is required.

📐 Technical Specifications — BSP Blanking End Cap Pipe Fittings

Material 304 Stainless Steel (18-8)
Thread Standard BSPP (British Standard Parallel Pipe)
Thread Type Options Male (external thread) / Female (internal thread)
Available Sizes (Male) 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2"
Available Sizes (Female) 1/4", 3/8", 1/2", 3/4", 1", 1-1/4"
Size Range (approx.) 1/4" (≈6mm) to 1-1/2" (≈38mm)
Head Style Hex head (wrench-applicable)
Finish Natural stainless (brushed/machined)
Pack Size Options 1 pc / 2 pcs / 5 pcs
Typical Working Pressure Generally up to ~150 PSI (≈10 bar) in water/air service — see variant and confirm for your application
Compatible Media Water, air, oil, mild hydraulic fluids (confirm for aggressive chemicals)
Sealant Required Yes — PTFE tape or thread compound recommended for liquid/gas service
Country of Origin See variant options
⚠️ Confirm your thread standard before ordering. BSP (British Standard Pipe) threads are not interchangeable with NPT (National Pipe Thread). If your system uses NPT ports, these caps will not seal correctly. When in doubt, measure your thread pitch and diameter or consult a thread identification chart.

❓ Frequently Asked Questions

How do I choose the right size BSP blanking end cap?

Match the cap size to your pipe's nominal BSP thread size. For example, a 1/2" BSP port requires a 1/2" BSP end cap. When in doubt, measure the outer diameter of the male thread or the inner diameter of the female port and cross-reference a BSP thread chart. Sizes in this listing range from 1/4" (≈6mm) to 1-1/2" (≈38mm). If you're unsure, contact us to confirm before ordering.

What is the difference between a male and female BSP blanking cap?

A male blanking cap has external (outside) threads and screws into a female-threaded port to seal it — think of it like a bolt going into a nut. A female blanking cap has internal (inside) threads and fits over a male-threaded stub or nipple. Choose based on the thread type of the port you need to seal.

Are these end caps suitable for outdoor or corrosive environments?

Yes. 304 stainless steel offers good resistance to atmospheric corrosion, moisture, and many mild chemicals, making these caps generally suitable for outdoor plumbing, marine-adjacent installations, and food-processing environments. For highly aggressive media (e.g., chloride-rich or strongly acidic fluids), 316 stainless steel is typically recommended instead.

What pressure rating do these BSP blanking caps carry?

304 stainless steel BSP end caps of this type are generally rated for working pressures up to approximately 150 PSI (≈10 bar) in water and air service at ambient temperatures. Actual ratings depend on size, wall thickness, and installation conditions. Always verify against your system's pressure requirements before use, and contact us if you need confirmation for a specific size.

Do I need thread sealant (PTFE tape) with these caps?

Yes. Applying PTFE thread seal tape (plumber's tape) or a suitable pipe thread compound is recommended for liquid or gas applications to ensure a leak-free seal. BSPP threads are parallel — unlike tapered NPT threads, they do not self-seal on the thread form alone, so sealant is required to achieve a pressure-tight connection.

Are these fittings compatible with NPT (National Pipe Thread) ports?

No. BSP and NPT threads have different thread angles (55° vs. 60°) and pitch specifications and are not directly interchangeable. These caps are designed for BSP-threaded ports only. Attempting to use them on NPT ports may result in cross-threading, poor engagement, or leaks.

Can I use these end caps for gas lines?

These caps are made from 304 stainless steel and are generally compatible with many gas applications in low-to-medium pressure systems. However, gas installations are subject to local codes and regulations. Always consult a licensed professional and verify compliance with applicable standards (e.g., local plumbing or gas codes) before using any fitting in a gas system.

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

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