McAlpine single pipe trap HC7HC15 1.5" – plumbing waste trap

McAlpine HC7HC15 is a single pipe 1.5" plumbing waste trap designed for inline connection to domestic drainage systems. The compact trap creates a water seal that prevents sewer gases from entering living spaces and is suitable for installation under sinks and sanitary fixtures where a space-saving, straightforward trap is required. The unit is compatible with standard 1.5" pipe fittings and is intended for use in common household and light commercial plumbing layouts.

Advantages

The single pipe trap offers a simple, low-profile design that saves installation space while maintaining an effective water seal. Constructed for reliable drainage performance, it is compatible with common 1.5" plumbing fittings, allowing straightforward integration into existing pipe runs. Its compact form factor reduces the likelihood of under-sink obstructions and simplifies access for maintenance or replacement.

Suitable for

• Sinks in kitchens, bathrooms, utility rooms
• Washbasins and small sanitary fixtures requiring a compact trap
• Inline installations where a single pipe connection is preferred
• Renovation projects replacing bulky or damaged traps with a low-profile unit

Key specifications

• Trap type: single pipe (straight) water trap
• Connection size: 1.5" compatible with standard plumbing fittings
• Installation orientation: inline under-sink or in-pipe installation
• Primary function: creates an odor-sealing water barrier for drainage systems
• Form factor: compact, low-profile design for restricted spaces

How to use

Connect the trap inline between the sink outlet and the waste pipe using standard 1.5" fittings and secure all joints according to local plumbing practice. Ensure the trap is positioned to maintain a continuous water seal and that the outlet slope provides unrestricted drainage. After installation, run water to confirm there are no leaks and that the trap retains water to prevent passage of sewer gases. Access for cleaning or replacement is achieved by disconnecting the inline joints as needed.

Usage recommendations

Use the trap in installations with compatible 1.5" pipework and follow local plumbing codes. Avoid installing in locations subject to freezing temperatures unless protected, and inspect periodically for blockages or leaks to maintain an effective seal.