Alkotest K9040 KOLANKO 90 FI40 plumbing elbow, 90° bend, inner diameter 40 mm

Alkotest K9040 KOLANKO 90 FI40 plumbing elbow is a 90° bend with a 40 mm inner diameter designed for redirecting wastewater and drainage flows in sanitary installations. Made for connection within PVC/PP piping systems, this elbow creates a compact right-angle joint that helps route pipes in limited spaces and achieve a neat installation. The product is suitable for residential and commercial applications where a reliable change of flow direction is required.

Advantages

This 90° elbow offers a defined curvature to minimize turbulence at the joint and ensure smooth flow through the bend. Its 40 mm inner diameter matches standard waste pipe dimensions, allowing compatible connections with common drain fittings. The component is resistant to typical household wastewater conditions and designed for straightforward assembly within plastic piping systems, contributing to a compact and space-efficient installation.

Suitable for

• Connecting sink, shower or bathtub drain lines to main waste pipes
• Changing pipe direction in tight spaces or under sinks
• Sanitary installations in residential and small commercial buildings

Key specifications

• Angle: 90° bend for right-angle connections
• Inner diameter: 40 mm suitable for standard waste pipes
• Material compatibility: designed for use with PVC and polypropylene (PP) piping systems
• Function: redirecting drainage and wastewater flow
• Application: indoor sanitary and drainage installations

How to use

Prepare pipe ends by ensuring they are clean, cut square and free from burrs. Fit the elbow into the pipe or socket according to the system’s joining method (push-fit, solvent weld or gasketed connection as applicable for the piping system in use). Ensure proper alignment for a true 90° change of direction and secure the joint according to installation practice for PVC/PP fittings. Verify slope and connection integrity before completing the installation and returning the system to service.

Usage recommendations

Use the elbow within the intended indoor drainage system and match the 40 mm inner diameter to existing pipes to avoid leaks. When solvent welding, follow manufacturer instructions for adhesives and curing times; when using push-fit or gasketed connections, confirm seals are seated correctly. Avoid exposing the fitting to solvents or temperatures outside the typical range for PVC/PP materials.