Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"
Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"
Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"
Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"
Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"
Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"
Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"
Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"
Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"
Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"
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Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"

Brass Octagonal Blanking Plug — Male & Female Pipe End Cap | 1-1/4" 1-1/2" 2"

HomeDIYer
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By HomeDIYer®

Price:
$22.17 USD
Stock:
In stock (500 units), ready to be shipped

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Description

 

Brass Octagonal Blanking Plug — Reliable Pipe End Cap for Plumbing & Hydraulic Systems

When you need to seal off an open pipe end during installation, maintenance, or system testing, a loose or ill-fitting cap can cause leaks, pressure loss, or contamination. DIYers, plumbers, and maintenance technicians working on water supply lines, compressed air systems, or hydraulic circuits need a dependable brass octagonal blanking plug that threads in securely and stays put.

Each plug is machined from solid brass and features an octagonal head for easy wrench engagement. Available in both male thread (Type M) and female thread (Type F) configurations, with sizes spanning 1-1/4" (≈32mm), 1-1/2" (≈38mm), and 2" (≈50mm) nominal pipe sizes. Sold individually (1 pc per order); select your type and size from the variant options above.

Typical use cases include capping unused ports on manifolds and valve bodies, sealing pipe ends during pressure testing of plumbing rough-ins, and blanking off hydraulic or pneumatic circuit branches — all scenarios where a secure, wrench-tightened brass pipe end cap is the right solution.

🔵 Compatibility Note: These plugs generally follow BSP thread standards. If your system uses NPT threads, please verify thread form before ordering. When in doubt, contact us to confirm fit.

✅ Key Features of These Brass Octagonal Blanking Plugs

  • 🔩Octagonal Head Design — The multi-flat head provides solid wrench grip for controlled torque, reducing the risk of rounding off during installation or removal of the pipe end cap.
  • ⚙️Male & Female Thread Options — Available in both external (Type M) and internal (Type F) thread configurations, covering the most common blanking plug installation scenarios in plumbing and hydraulic systems.
  • 🛡️Solid Brass Construction — Machined from brass for inherent corrosion resistance, good machinability, and compatibility with water, air, and light oil media — a durable choice for brass pipe fittings applications.
  • 📐Three Nominal Sizes — Covers 1-1/4", 1-1/2", and 2" pipe sizes, making it straightforward to find the right fit for residential plumbing, commercial HVAC, or light industrial compressed air lines.
  • 🔧Standard Thread Form — Threads are machined to consistent tolerances for reliable engagement with standard BSP fittings, minimizing cross-threading risk during hand-starting.
  • 🚿Versatile Application Range — Suitable for sealing unused ports, capping pipe ends during pressure testing, and blanking hydraulic or pneumatic circuit branches — a practical addition to any plumbing or pipe fitting toolkit.

📐 Technical Specifications — Brass Octagonal Blanking Plug

Material Brass
Head Style Octagonal (multi-flat wrench drive)
Thread Type BSP (British Standard Pipe) — see variant options
Thread Configuration Male (external) — Type M; Female (internal) — Type F
Available Sizes 1-1/4" (≈32mm), 1-1/2" (≈38mm), 2" (≈50mm) nominal pipe size
Finish Natural brass (unlacquered)
Typical Working Pressure Generally up to 150–200 PSI (verify against system requirements)
Recommended Sealant PTFE tape or thread sealant compound (not included)
Installation Tool Open-end wrench or adjustable spanner
Quantity per Order 1 pc
Compatible Media Water, compressed air, light hydraulic oil (confirm for other media)
Country of Origin See variant options / Contact us to confirm
⚠️ Spec Confirmation: Exact thread pitch and pressure ratings vary by size. If your application is safety-critical or involves gas lines, please contact us to confirm specifications before installation.

❓ Frequently Asked Questions

How do I choose the right size blanking plug for my pipe?

Match the plug size to your pipe's nominal bore size — not the outer diameter. For example, a 1-1/2" pipe end cap fits a pipe with a 1-1/2" nominal bore (approximately 48mm OD). When in doubt, measure the internal thread diameter of your fitting and select accordingly. Available sizes: 1-1/4" (≈32mm), 1-1/2" (≈38mm), and 2" (≈50mm).

What is the difference between the male and female thread versions?

The male thread plug (Type M) has external threads and screws into a female-threaded socket or fitting. The female thread plug (Type F) has internal threads and accepts a male-threaded pipe end. Choose based on the thread type of the fitting you need to seal.

What thread standard do these blanking plugs use?

These plugs generally follow BSP (British Standard Pipe) thread standards, which are widely used in plumbing and hydraulic systems globally. If your system uses NPT threads, please contact us to confirm compatibility before ordering.

Can these brass plugs be used outdoors or in wet environments?

Brass offers good natural corrosion resistance and is suitable for most indoor plumbing, compressed air, and light outdoor applications. For prolonged exposure to saltwater or highly corrosive environments, additional sealing (such as PTFE tape) is recommended, and a stainless steel alternative may be worth considering.

What pressure rating do these blanking plugs typically handle?

Brass pipe blanking plugs of this type are generally rated for working pressures up to approximately 150–200 PSI depending on size and installation conditions. Always verify the pressure rating against your system requirements and apply appropriate thread sealant for a leak-free seal.

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

Yes, in most cases applying PTFE (Teflon) tape or a thread sealant compound is recommended to ensure a leak-free seal, especially in pressurized water or gas lines. This is standard practice for threaded pipe fittings and helps prevent seepage at the thread interface.

What tool do I use to install the octagonal blanking plug?

The octagonal head is designed for use with a standard open-end wrench or adjustable spanner. Do not over-tighten — snug plus 1–2 turns with thread sealant applied is typically sufficient for a secure, leak-free seal without risking thread damage.

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

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