MAGNAPLAST external sewer elbow model 24130 is an 87° drainage bend with a 250 mm nominal diameter, intended for use in outdoor sewer and stormwater systems. The elbow provides a compact angled connection to change pipe direction while maintaining hydraulic flow. It is manufactured for applications where a robust external fitting is needed in municipal, commercial, or residential external drainage networks.
Advantages
The 87° external sewer elbow offers a precise change of direction with a near-right-angle geometry that reduces turbulence compared with abrupt 90° joints. Its 250 mm nominal size suits medium-capacity surface and subsurface drainage runs and simplifies alignment between pipes on site. The component is made to meet common external drainage installation requirements, enabling reliable wastewater routing and straightforward connection with compatible pipes and couplings.
Suitable for
- Outdoor sewer and stormwater drainage lines requiring an 87° change of direction
- Municipal and residential external drainage installations
- Gravity-fed wastewater runs and surface water collection systems
- Retrofit or new-build projects where a compact angled elbow is needed
When it may not be suitable
This elbow is designed specifically for external drainage with a 250 mm nominal diameter; it is not suitable for internal sanitary piping systems that require different materials, sizes, or pressure-rated fittings. It may also be inappropriate where a gentler bend radius is needed to minimize flow resistance for high-velocity applications or where space constraints demand a different geometry.
Key specifications
- Angle: 87 degrees
- Nominal diameter: 250 mm
- Application: external sewer and stormwater drainage
- Function: change of direction / elbow fitting
How to use
Install the elbow by aligning it between two compatible 250 mm external drainage pipes, ensuring clean, square pipe ends and correct insertion depth for the connection system used. Follow the pipe manufacturer's and local installation codes for jointing methods, bedding, slope and sealing. Verify alignment and slope to maintain gravity flow and inspect joints for watertightness after installation. Backfill and compact around the fitting according to guidance for external sewer pipe bedding to prevent movement and undue stress on the elbow.
What to consider before purchase
- Confirm the nominal diameter and compatibility with existing pipe system and couplers
- Check whether the 87° angle meets hydraulic and site layout requirements
- Ensure the material and mechanical properties suit local external installation standards and environmental conditions
- Verify installation space and required bend radius relative to site constraints
Usage recommendations
Use with matching-diameter external drainage pipes and follow local codes for bedding, jointing, and inspection. For systems with significant solids or high flow velocities, evaluate whether a smoother-radius fitting or alternative routing will reduce the risk of blockages and flow disturbance.
