Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting
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Brass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe FittingBrass BSP Reducing Bush — Male × Female Straight Pipe Fitting

Brass BSP Reducing Bush — Male × Female Straight Pipe Fitting

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Beschreibung

Brass BSP Reducing Bush — Reliable Male × Female Thread Connector for Plumbing & Pneumatic Systems

When your pipe system has mismatched port sizes, finding a dependable reducer that seals cleanly and holds pressure is frustrating. DIYers, plumbers, and workshop owners dealing with mixed-size fittings on water lines, air compressors, or hydraulic circuits need a solution that threads in smoothly and stays leak-free. These brass BSP reducing bushes are machined to deliver exactly that — a solid, corrosion-resistant connection between two different thread sizes without adapters stacking up.

Each bush is a single-piece straight reducing fitting machined from brass, with a female (larger) BSP thread on the outside hex body and a male (smaller) BSP thread on the protruding spigot. Available in a wide range of size combinations from 1/8" Female × 1/8" Male up to 1" Female × 1" Male, covering the most common reducing steps used in residential and light commercial plumbing. Sold individually (1 pcs) or in a 2-pcs pack for convenience on multi-point installations.

Typical applications include reducing ports on manifolds, valves, and pump bodies for compressed air plumbing in workshops, connecting mixed-size water supply lines in residential plumbing repairs, and adapting pneumatic tool fittings to different line sizes — making these BSP straight reducing bushes a go-to fastener for any toolbox or job site kit.

🔗 Thread Standard: BSP (British Standard Pipe) parallel threads. Not directly interchangeable with NPT (National Pipe Taper) threads. Confirm your system's thread standard before ordering.

✅ Key Features of These Brass BSP Reducing Bushes

  • 🔩Straight Reducing Design — Single-piece hex-body bush reduces one BSP thread size to another in a compact, inline profile — no bulky adapter stacks needed on tight manifold ports.
  • 🟡Machined Brass Construction — Brass offers natural corrosion resistance and reliable sealing in water, air, and low-pressure gas lines, making these fittings suitable for both indoor plumbing and workshop pneumatic systems.
  • 📐Wide Size Range — Available in combinations from 1/8" up to 1" BSP, covering the most common reducing steps for residential plumbing repairs and light commercial compressed air plumbing.
  • 🔧Hex Body for Wrench Grip — The external hex profile allows secure tightening with a standard open-end or adjustable wrench, reducing the risk of rounding during installation in confined spaces.
  • 💧PTFE-Ready Thread Profile — BSP parallel threads are designed to be used with PTFE tape or thread sealant, giving you a leak-free seal on water lines, air compressor fittings, and hydraulic circuits.
  • 📦Flexible Pack Options — Choose 1 pcs for a single repair or 2 pcs for multi-point installations — useful when replacing several reducing bushes across a manifold or distribution block in one job.

📐 Technical Specifications — Brass BSP Reducing Bush Pipe Fittings

Product Type Straight Reducing Bush (Male × Female)
Thread Standard BSP (British Standard Pipe) Parallel
Material Brass
Body Style Hex body with protruding male spigot
Female Thread Sizes Available 1/8", 1/4", 3/8", 1/2", 3/4", 1" BSP
Male Thread Sizes Available 1/8", 1/4", 3/8", 1/2", 3/4", 1" BSP
Size Combinations See variant options
Overall Length See variant options
Finish Natural brass (uncoated)
Typical Working Pressure Generally up to 150–200 PSI (water/air service) — contact us to confirm for specific applications
Temperature Range Typically suitable up to approx. 200°F (93°C) in standard service
Pack Quantity 1 pcs or 2 pcs (select above)
Compatible Media Water, compressed air, low-pressure gas (confirm suitability for specific media)
Sealant Required Yes — PTFE tape or thread sealant compound recommended
⚠️ Confirm thread standard before ordering. BSP parallel threads are not compatible with NPT taper threads. If you are unsure, measure your existing fitting or contact us — we are happy to help you identify the correct size.

❓ Frequently Asked Questions

How do I choose the right reducing bush size?

Select the female (larger) thread size to match your existing pipe or port, then select the male (smaller) thread size to match the component you are connecting. For example, a 1/2" Female × 1/4" Male bush reduces a 1/2" port down to accept a 1/4" male fitting. All sizes follow BSP thread standards — confirm your system uses BSP before ordering.

What material are these reducing bushes made from?

These bushes are machined from brass, which offers good corrosion resistance, machinability, and broad compatibility with water, air, and many gas applications. Brass is generally suitable for temperatures up to approximately 200°F (93°C) in typical plumbing and pneumatic systems.

Can these fittings be used outdoors or in wet environments?

Brass has inherent corrosion resistance and is generally suitable for outdoor and wet environments. For prolonged exposure to harsh conditions or salt air, applying PTFE tape to the threads and using a quality thread sealant is recommended to protect the connection and ensure a long-lasting, leak-free seal.

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

These fittings use BSP (British Standard Pipe) parallel threads, widely used in plumbing, pneumatic, and hydraulic systems across the US, UK, Australia, and many other countries. BSP threads are not directly compatible with NPT (National Pipe Taper) threads — the thread angle and pitch differ. Please confirm your system's thread standard before ordering. If you need NPT fittings, contact us.

How much pressure can these reducing bushes handle?

Brass BSP fittings of this type are typically rated for working pressures up to 150–200 PSI in water and compressed air service, depending on size and operating temperature. For high-pressure hydraulic or steam applications, please contact us to confirm suitability before use.

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

Yes. BSP parallel threads generally require PTFE tape or a suitable thread sealant compound to achieve a leak-free seal — the parallel thread form does not self-seal by taper alone. Apply 2–3 wraps of PTFE tape clockwise around the male threads before assembly, then tighten firmly with a wrench.

Are these fittings suitable for gas lines?

Brass fittings are commonly used in low-pressure gas applications such as compressed air and inert gas lines. For natural gas or LPG installations, always verify local code compliance and use an approved gas-rated thread sealant. When in doubt, consult a licensed plumber or gas fitter before installation.

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

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