A 3 x 2 inch reducing rubber expansion joint connects 3 inch and 2 inch flanges while absorbing vibration.
It matches a pump outlet to larger pipe in one part. Confirm flange drilling and rating.
What is a reducing rubber expansion joint?
A rubber expansion joint is a flexible flanged connector with a rubber sphere body. It absorbs pump vibration, reduces noise and takes up small pipe movement and misalignment.
Double sphere joints flex more than single sphere joints, and reducing joints also change pipe size. Therefore, they are fitted on pump suction and delivery in plant rooms.
Further reading
- Expansion joints (Wikipedia)
- Vibration isolation (Wikipedia)
- Rubber properties (Wikipedia)
Key terms explained
- Single and double sphere
- One or two rubber bulges. Two give more movement.
- Reducing joint
- A joint with a different size flange at each end.
- Tie rods
- Rods that stop a joint over-stretching under pressure.
Features and benefits
- Absorbs vibration and noise.
- Takes small movement and misalignment.
- Flanged ends.
- Double sphere and reducing types.
Technical specifications
| Product | 3 x 2 inch reducing rubber expansion joint |
|---|---|
| Sizes | 3" x 2" |
| Type | Reducing, flanged |
| Supplier | Sparks Plumbing Experts Ltd, Nairobi |
| Supplier | Sparks Plumbing Experts Ltd, Nairobi |
Sizes, grades and ratings depend on stock and model. Tell us what you need, and we will confirm before you order.
Applications of a reducing rubber expansion joint
- Pump connections. Isolates vibration.
- Booster sets. Cuts noise in buildings.
- Chillers. Isolates chiller pumps.
- Cooling towers. Absorbs movement.
- Water treatment. Connects pumps and filters.
- Size changes at pumps. Reducing joints match pump and pipe sizes.
- HVAC plant rooms. Reduces pipe noise.
- Irrigation pump sets. Protects pumps.
How to choose and install
- Match flange sizes and drilling.
- Check pressure and temperature rating.
- Use tie rods where needed.
- Do not paint the rubber.
Why choose Sparks Plumbing Experts
- Pumps sized to your dutyShare your flow, head or borehole data, and we match a pump to it.
- Controls and accessoriesControl boxes, level controls and fittings complete the installation.
- Water, fuel and chemical pumpsOur range covers borehole, transfer, fuel and chemical duties.
- Performance data on requestAsk for the performance curve of the model we propose before you decide.
- 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. We also supply buyers in Uganda, Tanzania, Zanzibar, Rwanda, Burundi, DR Congo, Ethiopia and South Sudan.
Related products and accessories
Browse more: Industrial Pumps · Hoses, Flexible Pipes & Irrigation · Flanges · Rubber Components and Mounts.
Ordering from Sparks Plumbing Experts
We supply customers across Kenya. We also serve buyers in Uganda, Tanzania, Zanzibar, Rwanda, Burundi, DR Congo, Ethiopia and South Sudan. 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
Where is a reducing rubber joint used?
Where a pump flange is smaller than the pipe.
What details do you need to quote rubber expansion joints?
Tell us the liquid, flow rate, head or pressure, temperature, power supply and any model number or nameplate photo. 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 rubber expansion joints outside Nairobi?
Yes. We supply customers across Kenya. We also serve buyers in Uganda, Tanzania, Zanzibar, Rwanda, Burundi, DR Congo, Ethiopia and South Sudan. Delivery or courier arrangements are agreed when you confirm the order.
How much does a rubber expansion joint cost in Kenya?
The price depends on the model, size, materials and quantity. Therefore, send your list with a quote request and we will reply with current figures.
Can a rubber joint take hot water?
Within its rated temperature.
Does a rubber joint need tie rods?
Where the design needs them.
Where should it be fitted?
Close to the pump.
Can I paint it?
No. Paint can damage rubber.
When should it be replaced?
If it cracks, bulges or leaks.
Where can I buy reducing rubber expansion joint in Kenya?
Buy it from Sparks Plumbing Experts Ltd at KCB Building, Enterprise Road, Industrial Area, Nairobi. We are open Monday to Friday, 8 am to 5 pm, and Saturday, 9 am to 12 noon. You can also order by phone or WhatsApp on 0726 086 895. We deliver across Kenya and to Uganda, Tanzania, Zanzibar, Rwanda, Burundi, DR Congo, Ethiopia and South Sudan.
People also search for
single vs double sphere joint
Double sphere takes more movement.
reducing rubber joint
It connects two pipe sizes and absorbs vibration.
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Rubber expansion joints price in Kenya
Prices change with size, model and quantity. Request a quote from Sparks Plumbing Experts for current figures.
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