What to Know About Tapers and Taper Bends in Drainage: Purpose, Connection Fit, and Supply

Tapered connectors are purpose-built elements used to connect pipes of different sizes in drainage networks. Their role is to enable a gradual size reduction, which helps prevent flow restriction, backflow, or leakage. When drainage systems are modified, tapers offer a more stable solution than forcing mismatched pipes together.



Taper Bends: Redirection and Size Change in One



Taper bends combine a shift in pipe direction with a simultaneous reduction in diameter. These fittings are most common in angles such as standard elbow degrees, and they’re particularly effective in installations where room is limited or multiple transitions are needed. They limit the number of individual components, helping to lower failure points in the system.



Where Tapers and Bends Are Commonly Used



These fittings are frequently used across various drainage applications:




  • In pump chambers, to join large outflow pipes to smaller distribution lines

  • Throughout retrofit projects with updated or non-standardised pipework

  • Across field drainage systems where flow rates and gradients must be kept steady

  • Inside wastewater facilities where components need to be space-saving and multi-functional



Correctly applied, these fittings optimise flow, reduce energy loss from turbulence, and help meet compliance benchmarks for water management.



Why Size Precision Matters



Incorrectly sized joints can cause:




  • Disturbances in hydraulic pressure

  • Build-up of debris

  • Stress on seals and fittings



Tapers and taper bends create an even flow path by offering a controlled reduction, improving flow performance and reducing long-term maintenance.



Benefits of Using a Specialist Supplier



Choosing a general merchant might offer convenience, but a specialist drainage supplier brings:




  • Greater range of product sizes and angles

  • Products designed for field application

  • Product advice from experience

  • Components meeting required standards



A dedicated supplier will have fittings that are not only dimensionally correct but also proven in field conditions—ensuring long-term system integrity.



FAQs



Is a taper the same as a reducer?

No. Tapers offer a longer and more gradual size change, which is more effective for systems needing steady flow. Reducers often transition over a short length, which may impact flow stability.



Can taper bends be used underground?

Yes, provided they are made from suitable materials and follow relevant local guidelines.



Are tapers compatible with clay and plastic pipes?

Tapers are usually material-specific, but adaptors can bridge the gap between clay, plastic, and other pipe materials.



Do taper bends reduce flow performance?

If properly integrated into the system, taper bends maintain consistent flow and can even improve it by reducing pressure drops.



What size taper should I choose?

Measure both ends and factor in hydraulic design to select the correct taper size for the application.



Choose Smart, Fit Once



Whether you're handling minor repairs or planning here an upgrade, fitting the correct tapers and taper bends is key to a low-maintenance and efficient drainage setup.



Knowles Drainage supplies a wide variety of precision-fit components tailored for both agricultural and commercial applications, backed by hands-on expertise and a commitment to fit-for-purpose supply.

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