Urinal siphon McAlpine HC-UP50 horizontal concealed 50 mm

McAlpine HC-UP50 is a horizontal concealed urinal siphon with a 50 mm outlet designed for installation behind wall-mounted urinals. The siphon provides reliable wastewater drainage while remaining hidden within the wall or concealment panel, supporting hygienic and space-efficient washroom layouts in commercial and public environments.

Advantages

The horizontal concealed design keeps the trap and pipework out of sight, reducing visual clutter and minimising the potential for tampering or accidental damage. A 50 mm outlet ensures compatibility with standard domestic and commercial drainage systems, and the unit is built for straightforward connection to urinal fittings. Its concealed mounting helps maintain easier cleaning of the visible area around the fixture and supports compliant installation where a hidden trap is required.

Suitable for

• Wall-mounted urinals in commercial washrooms
• Public restroom installations where concealed plumbing is required
• Toilet refurbishment projects focused on improved hygiene and aesthetics
• Spaces requiring tamper-resistant or vandal-resistant plumbing solutions

Key specifications

• Outlet diameter: 50 mm
• Orientation: horizontal concealed installation
• Application: urinal trap for wall-hung urinals
• Installation location: within wall cavity or concealment panel
• Material characteristics: engineered for wastewater drainage and trap function (material details per manufacturer documentation)

How to use

Install the siphon within the wall cavity or concealment box behind the urinal so the horizontal outlet aligns with the building drainage connection. Ensure proper support and sealing at the connection points according to local plumbing codes and manufacturer guidance. Connect the urinal outlet to the siphon inlet and secure the horizontal 50 mm outlet to the soil or waste pipe using appropriate solvent weld, push-fit or compression fittings specified for the installation. Test for leaks and correct trap positioning before completing wall finishes or access panels.

Usage recommendations

Follow local plumbing regulations and the fixture manufacturer’s instructions when installing the concealed siphon. Provide an access panel or removable service cover to allow inspection and maintenance of the trap. Regularly inspect for blockages and ensure flushing mechanisms are functioning to prevent odours and maintain hygienic operation.