brass reducing bushes step brass, GI and copper threaded connections down between sizes.
We list sizes 1/2 x 1/4, 3/4 x 1/2 and 1 x 3/4 inch. Choose a size above for size details, or send your list and we will quote it together.
What are brass reducing bushes?
A brass reducing bush is a short threaded fitting that steps a connection from one size to a smaller one. One type screws into a fitting outlet; another, the male-male type, joins two female parts of different sizes.
Bushes keep assemblies short. As a result, they are common at gauges, meters, valves and gas regulators.
Further reading
- Brass: composition and properties (Wikipedia)
- British Standard Pipe (BSP) thread explained (Wikipedia)
- Types of piping and plumbing fittings (Wikipedia)
Key terms explained
- Brass
- An alloy of copper and zinc. It resists corrosion, machines cleanly and makes precise threads.
- BSP thread
- British Standard Pipe thread, the common pipe thread in Kenya. Taper threads (BSPT) seal as they tighten.
- Dezincification
- Slow loss of zinc from some brasses in aggressive water, which weakens the metal. DZR brass resists it.
- Male and female thread
- A male thread is on the outside of a part. A female thread is on the inside.
- Bushing
- Another name for a reducing bush.
Features and benefits
- Steps between two thread sizes.
- Compact, one-piece design.
- Rust-free brass body.
- Male-female and male-male types.
Technical specifications
| Product | Brass Reducing Bushes |
|---|---|
| Sizes | 1/2 x 1/4, 3/4 x 1/2 and 1 x 3/4 inch |
| Material | Brass |
| Thread | BSP |
| Supplier | Sparks Plumbing Experts Ltd, Nairobi |
Each size has its own page with sizing details. Choose a size above, then request a quote.
Applications of brass reducing bushes
- Tap and mixer connections. Connects taps, mixers and flexible connectors.
- Water meter installations. Joins meters to valves and pipe.
- Valve assemblies. Builds compact valve and strainer sets.
- LPG regulator connections. Joins regulators, hoses and appliances on gas lines.
- Compressed air lines. Connects air tools, gauges and regulators.
- Water heaters. Connects heater inlets, outlets and relief valves.
- Pump connections. Joins small pump ports and pressure switches.
- Gauge mounting. Connects pressure gauges and test points.
- GI to copper transitions. Acts as the transition between GI and copper lines.
- Irrigation controls. Joins small valves and filters on irrigation lines.
- Laboratory services. Connects water and gas outlets in labs.
- Kitchen equipment. Connects commercial kitchen water and gas points.
How to choose and install
- Give both thread sizes, large first.
- Confirm male or female on each end.
- Avoid stacking several bushes in a row.
- Seal threads properly.
Why choose Sparks Plumbing Experts
- Every common pipe materialGI, PPR, PVC, HDPE, brass and stainless fittings are all stocked, so you can match any existing system.
- Common sizes in stockMost fitting types come in several sizes, from small domestic sizes up to larger mains sizes.
- Pipes, fittings and valves togetherPipes, fittings, valves, clamps and jointing products come in one order.
- Help with thread and size standardsWe help you confirm inch and millimetre sizes before you buy, which avoids return trips.
- Visit or collect in NairobiOur store is at KCB Building, Enterprise Road, in the Industrial Area, so you can see parts before you buy or collect your order.
- Quotes your wayAsk for prices by phone, WhatsApp, email or the online quote form, whichever suits you on site.
- Over 1,600 products in one placeOur catalogue covers 55 categories, so one supplier can handle most of your parts list.
- Help choosing the right partSend a nameplate photo, a drawing or the old part, and we help you match size and specification.
- Single items or project quantitiesWe price a single replacement part just as readily as a full site order.
- Supply across East AfricaWe serve customers across Kenya, and we also supply buyers in Uganda and Tanzania.
Related products and accessories
Browse more: Brass Fittings · Valves · Tapes · Copper Fittings.
Ordering from Sparks Plumbing Experts
We supply customers across Kenya, and we also serve buyers in Uganda and Tanzania. You can collect from our store at KCB Building, Enterprise Road, Nairobi, or ask us about delivery to your site. Send your quantities and specifications, and we will reply with prices and availability.
Request a Quote WhatsApp 0726 086 895
Frequently asked questions
Which brass reducing bushes are most common?
Steps such as 3/4 x 1/2 inch and 1/2 x 1/4 inch.
Do brass reducing bushes need sealant?
Yes, on taper threads.
Which sizes of brass reducing bushes do you list?
We list 1/2 x 1/4, 3/4 x 1/2 and 1 x 3/4 inch. Each size has its own page.
Can I order brass reducing bushes in mixed sizes?
Yes. Send one list with sizes and quantities.
What details do you need to quote brass reducing bushes?
Tell us the thread size, whether you need male or female ends, and the quantity. A photo of the old part, a nameplate or a drawing also helps. Then call or WhatsApp 0726 086 895, or use the quote form on this page.
Do you deliver brass reducing bushes outside Nairobi?
Yes. We supply customers across Kenya, and we also serve buyers in Uganda and Tanzania. Delivery or courier arrangements are agreed when you confirm the order.
How much does a brass reducing bush cost in Kenya?
The price depends on the size, the quantity and current brass prices. Therefore, send your list with a quote request and we will reply with current figures.
Should I use PTFE tape on brass reducing bushes?
Yes, on taper threads for water. For gas, use tape or sealant rated for gas. Do not tape threads that seal with a washer or cone.
Can brass reducing bushes join GI pipe?
Yes. Brass threads match GI fittings of the same BSP size. Brass is also the usual transition between GI and copper.
Can brass bushes carry gas?
Yes, where they suit gas. Use gas-rated sealant.
Can I stack two bushes?
It works, but one bush of the right size is neater and less likely to leak.
Does a bush restrict flow?
It narrows the path, so flow drops slightly. Size it for the job.
People also search for
reducing bush vs reducing socket
A bush screws into a fitting. A reducing socket joins two pipes.
how to read bush sizes
Large thread first, for example 3/4 x 1/2 inch.
brass reducing bushes price in Kenya
Prices change with size, model and quantity. Request a quote from Sparks Plumbing Experts for current figures.
brass vs GI fittings
Brass does not rust and makes finer threads. GI is cheaper for large steel water lines.
brass vs stainless steel fittings
Stainless steel suits higher pressure and harsh fluids. Brass suits water, gas and air at normal pressure.
BSP vs NPT thread
BSP is the British thread used in Kenya. NPT is American with a different angle, so they do not seal together reliably.
can brass be used for gas
Yes, brass fittings are common on LPG lines. Use parts made for gas and have the work checked by a competent installer.
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