Knuckle bends are used to create tight, neat 90 degree bends in a waste pipe system. They have a tighter radius than the standard swept bends. This fitting is available in 32mm, 40mm and 50mm size options. Our solvent weld waste is manufactured in the UK to BS EN 1455 and is kitemarked. To make a solvent weld joint, first ensure that the outer wall of the pipe and the inner wall of the fitting are both clean and free from grit or swarf. Apply SC250 solvent cement to both surfaces. Push the pipe fully into the fitting and give it a twist to ensure that full contact has been made. Clean off any excess solvent with a damp cloth and leave for 5 minutes to set. The installation should be left for 12 hours before testing. Solvent weld joints are permanent - they cannot be demounted once the joint has been made. When using solvent cement, always work in a well ventilated area and keep the cement away from heat sources or naked flames. Avoid any contact with skin - if contact does occur then wash thoroughly with soap and water. The FloPlast ABS Solvent Weld 90' Knuckle 40mm Black is a versatile plumbing component designed for creating tight, neat 90-degree bends in waste pipe systems. It offers a tighter radius than standard swept bends, ensuring a more efficient and aesthetically pleasing installation. This knuckle bend is part of the FloPlast Solvent Weld system, which is known for its lightweight strength and cost-effectiveness. Features: Tight radius design for neat 90-degree bends Part of the FloPlast Solvent Weld system Lightweight and strong construction Cost-effective solution for waste pipe fittings Benefits: Enhances the appearance of waste pipe installations Improves efficiency by reducing the need for additional components Offers a durable and reliable connection between pipes Compatible with various waste pipe systems.