Anti-limescale manifold module ARCO 3/4GZ x 3/4GW, 2 x Ø16

The ARCO anti-limescale manifold module 3/4GZ x 3/4GW with two Ø16 outlets is a compact plumbing component designed for integration into heating and water distribution systems. It provides a connection from a 3/4-inch male thread to a 3/4-inch female thread while offering two branch outlets for 16 mm piping. The module is intended to reduce limescale accumulation at junction points and to simplify the connection of two small-diameter circuits in hard-water environments.

Advantages

This manifold module combines a threaded inlet/outlet interface with two dedicated Ø16 branch ports to streamline installations. Its anti-limescale design helps maintain flow efficiency and reduce maintenance needs over time by limiting scale buildup where pipes join. The compact geometry saves space in distribution manifolds and allows easier routing of 16 mm pipes without additional adapters.

Suitable for

• Domestic and light-commercial heating distribution manifolds
• Underfloor heating circuits using 16 mm pipework
• Plumbing branches in areas with hard water to reduce scaling
• Retrofit projects where space-saving branch connections are required

Key specifications

• Connection type: 3/4-inch male thread to 3/4-inch female thread
• Branch outlets: 2 × Ø16 mm
• Function: limescale-reducing manifold module for distribution points
• Application: heating and plumbing distribution systems
• Form factor: compact, inline manifold with two branch ports

How to use

Install the module inline at the required junction by connecting the 3/4-inch male thread to the corresponding female thread on the supply line and securing the 3/4-inch female thread to the downstream component. Attach the two Ø16 mm pipes to the branch outlets using appropriate compression fittings or connection sleeves compatible with 16 mm piping. Ensure all threaded connections are sealed according to local plumbing practices and pressure-tested after installation to verify leak-tightness.

Usage recommendations

For optimal performance, install the manifold module in accessible locations to allow periodic inspection. Use compatible 16 mm piping and fittings, and follow system flushing and water treatment practices recommended for hard-water installations to further reduce limescale formation.