Kayflow Reducer - 40mm x 32mm - White

This 40mm x 32mm reducer is designed for domestic above-ground grey water drainage, including kitc...

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B&QB&Q - 40mm X 32mm ReducerLight Grey
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Product Information

Full details

The Kayflow 40mm x 32mm Reducer is an essential component for DIYers and professional plumbers tasked with domestic above-ground grey water drainage installations, such as connecting kitchen sinks, washing machines, or dishwashers. Its primary benefit is the push-fit mechanism, which provides a fast, watertight seal without the hassle of glues or solvents; however, users should ensure the pipe ends are properly deburred and chamfered to prevent damaging the internal rubber seals during insertion.

All features

Model Part NumberPF4032RW
BrandTruly PVC Limited

Extended Product Information

FAQs

Can I use this reducer for underground drainage?

No, this product is specifically engineered for domestic above-ground grey water drainage only.

Do I need to buy special pipe glue for this fitting?

No, this is a push-fit system that relies on internal rubber seals, so no adhesives are required.

Is this reducer compatible with all 40mm and 32mm pipes?

It is compatible with standard metric plastic waste pipes that meet BS EN 1451 specifications.

What should I do if the rubber seal is damaged?

If the seal is damaged, it is recommended to replace the fitting to ensure a watertight seal, as the seals are integral to the unit.

Can this handle boiling water?

The reducer is designed for domestic grey water temperatures common in kitchens and laundry, but always check your appliance output temperatures to ensure they remain within standard plumbing ratings.

Troubleshooting

Leakage at the joint

Ensure the pipe is inserted fully past the seal and check that the pipe surface is not scratched or deformed.

Difficulty inserting the pipe

Ensure the pipe end is properly chamfered and consider using a small amount of silicone lubricant on the pipe end.

Fitting feels loose

Verify that you are using 40mm and 32mm pipes that meet standard dimensions; undersized pipes will not seal correctly.

Pros and Cons

Pros

  • No glue or solvents required
  • Easy to disassemble and reuse
  • Quick, intuitive installation process
  • Compliant with BS EN 1451 standards
  • Strong resistance to household detergents

Cons

  • Requires proper pipe preparation to avoid seal damage
  • Only suitable for above-ground use
  • Not intended for high-pressure water mains

Setup, Compatibility & Care

To install, first ensure your pipe is cut squarely and the edge is chamfered—removing any burrs with a file is critical to protect the internal rubber seal. Insert the pipe firmly into the socket until it seats against the internal stop. For maintenance, keep the area around the joints accessible. If you need to clean the system, the joints can be taken apart by hand; simply clean the rubber seals with a damp cloth and ensure no debris is trapped before reassembling. Avoid using harsh abrasive cleaners on the plastic exterior to maintain the integrity of the fitting.

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