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BSP Male to Female Reducing Bush — Stainless Steel Pipe Fitting Adapter
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BSP Male to Female Reducing Bush — Stainless Steel Pipe Fitting Adapter
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BSP Male to Female Reducing Bush — Stainless Steel Pipe Fitting AdapterBSP Male to Female Reducing Bush Stainless Steel Pipe Fitting Adapter for Reliable Size Reduction When a pipe system changes diameter mid run at a pump inlet, tank outlet, or manifold port a mismatched thread size can stall an entire installation. Plumbers, pipefitters, and DIY homeowners working on water supply, compressed air, hydraulic, or industrial fluid systems need a reducing bush that threads in cleanly, holds pressure, and doesn't corrode
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BSP Male to Female Reducing Bush — Stainless Steel Pipe Fitting Adapter for Reliable Size Reduction
When a pipe system changes diameter mid-run — at a pump inlet, tank outlet, or manifold port — a mismatched thread size can stall an entire installation. Plumbers, pipefitters, and DIY homeowners working on water supply, compressed air, hydraulic, or industrial fluid systems need a reducing bush that threads in cleanly, holds pressure, and doesn't corrode over time. These BSP male to female reducing bushes are built for exactly that job.
Each piece is a single-body stainless steel reducing bush with a larger female BSP thread on one end and a smaller male BSP thread on the other. Female (socket) sizes range from 1/2" to 3", and male (spigot) sizes range from 2" to 4", covering a wide span of common pipe reduction combinations. Both ends are machined to BSP thread standards. Sold individually (1 pc per order); select your required F × M combination from the variant menu above.
Typical use cases include reducing a 2" female port down to a 1" male outlet on a water pump, stepping down manifold connections in compressed-air distribution lines, and adapting tank fittings in irrigation or industrial fluid-transfer systems — all situations where a durable, corrosion-resistant BSP reducing bush is the right solution.
Thread Compatibility: BSP (British Standard Pipe) threads — compatible with BSPP (G) parallel and BSPT (R/Rc) tapered BSP systems. Not directly compatible with NPT threads. Verify your existing pipe thread standard before ordering.
✅ Key Features of These BSP Male to Female Stainless Steel Reducing Bushes
- Wide Size Range — Female ports from 1/2" to 3" paired with male outlets from 2" to 4", covering the most common BSP pipe reducing bush combinations in one product line.
- Stainless Steel Construction — Machined from stainless steel for corrosion resistance in water, air, oil, and mild chemical service — suitable for indoor plumbing, outdoor installations, and marine-adjacent environments.
- Precision BSP Thread Form — Both male and female ends are machined to BSP thread standards, ensuring consistent engagement with BSP-threaded valves, pumps, tanks, and pipe fittings without cross-threading or galling.
- Reducing Bush Design — Single-body hex-profile bush allows installation and removal with a standard pipe wrench or spanner — no additional coupling or nipple required to reduce pipe diameter.
- Pressure-Capable for Fluid Systems — Suitable for water supply lines, compressed-air distribution, hydraulic circuits, and industrial fluid-transfer applications where a reliable stainless steel BSP adapter is required.
- Sold Individually, Ships Ready — Each order contains 1 reducing bush in your selected size combination, packaged and shipped from our US warehouse — no minimum order quantity required.
📐 Technical Specifications — BSP Male to Female Reducing Bush
| Product Type | BSP Male to Female Reducing Bush (Pipe Adapter) |
|---|---|
| Material | Stainless Steel |
| Thread Standard | BSP (British Standard Pipe) — BSPP (G) or BSPT (R/Rc) |
| Female (Socket) Thread Sizes | 1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3" BSP |
| Male (Spigot) Thread Sizes | 2", 2-1/2", 3", 4" BSP |
| Available Combinations | See variant options (21 size combinations available) |
| Finish | Natural stainless steel (uncoated) |
| Working Pressure | Contact us to confirm for your specific size |
| Quantity per Order | 1 pc |
| Compatible Systems | Water supply, compressed air, hydraulic, industrial fluid transfer |
| NPT Compatibility | Not directly compatible — BSP-to-NPT adapter required |
| Country of Origin | See variant options |
Before ordering: Confirm your existing pipe thread standard is BSP (not NPT or metric). Use a thread gauge or caliper to verify thread pitch and diameter if unsure. BSP and NPT threads are not interchangeable.
❓ Frequently Asked Questions
How do I choose the right size BSP reducing bush?
Measure the female (larger) port first, then the male (smaller) outlet. BSP sizes are nominal — for example, a 1" BSP fitting has an actual thread OD of approximately 33.25 mm (1.309"). Select the variant that matches your existing pipe thread sizes. When in doubt, measure with a thread gauge or caliper rather than relying on pipe OD alone.
What pressure rating can I expect from these stainless steel reducing bushes?
Stainless steel BSP reducing bushes are generally rated for working pressures up to 150 PSI (approximately 10 bar) in standard plumbing and fluid-transfer applications. Actual ratings depend on size, wall thickness, and installation conditions. Contact us to confirm the rating for your specific variant.
Are these fittings suitable for outdoor or marine use?
Yes. Stainless steel offers strong corrosion resistance and is typically suitable for outdoor, marine, and humid environments. For highly aggressive environments (salt spray, chemical exposure), confirm the grade with us before ordering.
What thread standard do these fittings use?
These fittings use BSP (British Standard Pipe) threads — also known as G threads (parallel) or R/Rc threads (tapered). BSP is widely used in plumbing, hydraulics, and pneumatics outside North America and is compatible with most BSP-threaded valves, pumps, and pipe systems.
Can I use these fittings with NPT-threaded pipes?
BSP and NPT threads are not directly interchangeable — they have different thread angles (55° vs 60°) and pitch. In some sizes they may appear to engage, but this can result in leaks or damage. Use a BSP-to-NPT adapter if you need to connect to NPT-threaded components.
What fluids or media are these reducing bushes compatible with?
Stainless steel BSP reducing bushes are generally compatible with water, air, oil, and many mild chemicals. Compatibility with aggressive acids, solvents, or high-chloride environments should be verified based on the specific stainless steel grade. Contact us to confirm suitability for your application.
Do I need thread sealant when installing these fittings?
For tapered BSP (BSPT/R) threads, PTFE tape or thread sealant compound is typically recommended to achieve a leak-free seal. For parallel BSP (BSPP/G) threads, a bonded seal washer or O-ring face seal is generally used instead of tape. Check your fitting type before installation.
🛒 Select your type and size combination above, then add to cart — ships from our US warehouse.
BSP Male to Female Reducing Bush — Stainless Steel Pipe Fitting Adapter
Item no
:
2248032353
US$ 29.95
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Min. order:
1piece
Shipping Estimate
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Ships within 48 hours · Estimated delivery Jun 27 - Jul 2
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- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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