A PPR brass outer threaded adapter joins PPR pipe to female-threaded valves and fittings.
It has a fusion socket on one end and a male brass thread on the other. Therefore, it is a common plastic to metal transition.
What is a PPR brass outer threaded adapter?
PPR adaptors and connectors join PPR pipe to taps, tanks, mixers and metal pipework. They combine a fusion socket with a brass thread or a union.
Each type solves one connection problem. For example, a union lets a joint be opened, a tank connector seals through a tank wall, and a mixer connector sets hot and cold outlets at the right spacing.
Further reading
- Polypropylene: properties and uses (Wikipedia)
- Plastic pipework materials compared (Wikipedia)
- Plastic welding and fusion joining (Wikipedia)
Key terms explained
- PPR
- Polypropylene random copolymer, a plastic made for hot and cold water pipes. It joins by heat fusion.
- Socket fusion
- Heating the pipe end and fitting socket on a welding machine, then pushing them together so they fuse into one piece.
- PN rating
- The pressure class, such as PN16, PN20 or PN25. A higher PN has a thicker wall for hot water and higher pressure.
- Outside diameter (OD)
- PPR is sized by outside diameter in mm, such as 20, 25, 32, 40, 50 and 63 mm.
- Brass insert
- A threaded brass part moulded into a PPR fitting, so it can connect to metal threads.
- Union
- A fitting with a nut that lets a joint be opened without cutting pipe.
Features and benefits
- Fusion socket plus brass or union connection.
- Joins PPR to metal parts.
- Rust-free PPR body.
- Several types for taps, tanks and equipment.
Technical specifications
| Product | PPR brass outer threaded adapter |
|---|---|
| Material | PPR (polypropylene random copolymer) |
| Insert | Brass, male thread |
| Sizes | State the size in mm when you request a quote (20, 25, 32 mm and up) |
| Supplier | Sparks Plumbing Experts Ltd, Nairobi |
Sizes, PN class and colour depend on stock and maker. Tell us the size in mm and the quantity, and we will confirm.
Applications of a PPR brass outer threaded adapter
- Tank outlets. Connects PPR to plastic or steel tanks.
- Mixer taps. Sets hot and cold outlets for wall mixers.
- Water heaters. Joins PPR to heater threads.
- Pumps. Connects PPR to pump ports with a union.
- Meters. Joins PPR to meter tails.
- Valves. Connects threaded valves.
- GI transitions. Joins PPR to old GI lines.
- Filters. Connects water filters that may need removal.
How to choose and install
- Match the PPR size and the thread size.
- Use a union where equipment must be removed.
- Seal metal threads with PTFE tape.
- Hold brass parts with a spanner while tightening.
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: PPR Pipes & Fittings · Valves · Tapes · Plumbing Accessories & Tools.
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
What details do you need to quote PPR adaptors?
Tell us the size in mm, the PN class 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 PPR adaptors 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 PPR adaptor cost in Kenya?
The price depends on the size, the PN class and the quantity. Therefore, send your list with a quote request and we will reply with current figures.
Can PPR adaptors be used for hot water?
Yes. PPR is made for hot and cold water. Use a suitable PN class for hot lines, such as PN20 or PN25.
How are PPR adaptors joined?
PPR parts join by socket fusion with a PPR welding machine. Threaded and brass insert parts connect to metal with a sealed thread.
Which adaptor joins PPR to GI?
A brass insert adaptor with a thread to match the GI fitting.
Where should I fit a PPR union?
Next to pumps, heaters, meters and filters.
Do tank connectors need sealant?
They seal with washers. Do not overtighten the back nut.
People also search for
PPR union vs coupler
A union can be opened. A coupler is permanent.
PPR tank connector installation
Drill the tank, fit the connector with its washers, then tighten the back nut.
PPR adaptor price in Kenya
Prices change with size, model and quantity. Request a quote from Sparks Plumbing Experts for current figures.
PPR vs GI pipe
PPR does not rust and suits hot and cold water indoors. GI is stronger against knocks and sunlight.
PPR sizes mm to inches
In Kenya, 20 mm is commonly sold as 1/2 inch, 25 mm as 3/4 inch and 32 mm as 1 inch.
PPR welding temperature
Socket fusion tools usually work at about 260 degrees Celsius. Follow the machine and fitting maker instructions.
PN16 vs PN20 PPR
PN20 has a thicker wall and suits hot water. PN16 is often used for cold water.








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