Solvent Weld Waste 40Mm 90.25Deg Knuckle - Black

Solvent Weld Waste 40Mm 90.25Deg Knuckle - Black

The 40mm Black Solvent Weld 90.25° Knuckle Bend is a specialized PVC-u fitting designed for creating precise right-angle turns in waste systems while maintaining a crucial fall. The slight 0.25° offset is engineered to ensure that horizontal pipe runs have the natural gradient required for gravity-fed drainage, preventing stagnant water and debris buildup.

The "Knuckle" design provides the tightest possible turning radius, making it the industry-standard solution for installations where space is at an absolute premium, such as within kitchen cabinetry, vanity units, or narrow floor voids.

Key Features and Specifications

Size: 40mm diameter (Standard for kitchen sinks, washing machines, and dishwashers).

Angle: 90.25° (Provides a built-in fall for horizontal waste runs).

Profile: Compact "Knuckle" geometry for installation in restricted spaces.

Material: High-impact PVC-u, resistant to sustained high water temperatures and domestic chemical detergents.

Jointing Method: Solvent Weld (requires solvent cement to create a permanent, molecularly fused leak-proof joint).

UV Stabilized: The black finish is formulated to resist ultraviolet degradation, ensuring the fitting does not become brittle when used on external elevations.

Finish: Gloss Black, matching modern black soil stacks, rainwater goods, and architectural exteriors.

Common Applications

Kitchen Installations: Connecting the sink trap to the main waste run within tight base units while ensuring a proper drainage slope.

Appliance Discharge: Navigating 40mm pipework for washing machines and dishwashers through confined service gaps.

Bathroom Renovations: Ideal for shower waste runs where depth is limited beneath the tray and a specific fall must be maintained.

Essential Companion Products

Installation: Professional Solvent Cement (with Brush) - 250ml

Pipework: 40mm x 3m Solvent Weld Waste Pipe - Black

Support: 40mm Waste Pipe Clip - Black

Alternative Angle: 40mm 135° (45°) Knuckle Bend - Black

Specialist Support and Local Collection

Need to ensure your waste run has the correct fall in a tight space? We stock a comprehensive range of 40mm solvent weld fittings, including knuckle bends, swept bends, and tees in Black, White, and Grey for immediate trade pick-up.