Trappex expansion vessel service valve simplifies service and maintenance for an expansion vessel, saving time and effort.

Features:
◦ Isolates the expansion vessel for easy maintenance without draining the entire system.
◦ Incorporates a dosing port for adding system inhibitor, reducing corrosion and extending system lifespan.
◦ Includes a filling loop adapter for convenient system top up after maintenance.

Connections: 3/4" BSP PM x 3/4" BSP swivel union and 3/4" BSP drain connection with 15 mm spigot adaptor for filling loop.