VIEGA pipe bypass 18 mm model N23 — plumbing fitting

The VIEGA pipe bypass 18 mm model N23 is a plumbing fitting engineered to provide a full bypass connection for 18 mm pipe systems. It is designed to redirect fluid flow or create an alternate route within domestic and light commercial installations where compact bypassing or rerouting is required. The fitting supports routine maintenance, system isolation and balancing without the need for extensive reconfiguration of existing pipework.

Advantages

This bypass fitting is compact and compatible with standard 18 mm pipework, offering a reliable mechanical connection that maintains flow integrity. Its design allows for straightforward integration into existing piping layouts, reducing installation time and minimizing interruption to system operation. The component is suitable for repeated use during maintenance and provides consistent performance for bypassing, balancing, and temporary rerouting tasks.

Suitable for

• Creating an alternate flow route in 18 mm domestic water systems
• Providing bypass access for maintenance and repairs
• System balancing and temporary isolation in light commercial installations
• Rerouting flow during component replacement or upgrades

Key specifications

• Pipe compatibility: 18 mm diameter
• Function: full bypass connection for redirecting flow
• Typical applications: domestic and light commercial plumbing
• Installation type: inline bypass fitting suitable for compact layouts

How to use

Plan the bypass location on the 18 mm pipework and isolate the relevant section of the system before starting work. Prepare and cut the pipe to the required lengths, deburr and clean the pipe ends, then fit the bypass according to the chosen connection method and the manufacturer's guidance. After installation, restore system pressure and check for leaks and proper flow through both the main and bypass routes. Use the bypass to divert flow during maintenance, isolation, or balancing operations as needed.

Usage recommendations

Ensure compatibility with existing 18 mm piping materials and follow local plumbing codes. Verify the selected connection method and any required sealing or securing components before installation. Regularly inspect joints and seals after initial use and during scheduled maintenance to maintain system integrity.