Anti-Legionella Valve

The Reliance Anti-legionella valve converts a standard single connection expansion vessel into a ‘flow through’ type. It does this by diverting a portion of the flow into the vessel so that the water content is continually renewed to prevent water stagnation, which can cause to Legionella growth.

The ¾” valve has a rotatable tee-piece & wall bracket and both options include a ball valve to allow for quick & easy flexable installation. The Anti-Legionella Valve can be used on any standard vessel with a 3/4″ or up to 1 1/4″ connections.

wras certified


The Anti-Legionella Valve must be a WRAS approved valve that prevents stagnation by maintaining circulation by partly diverting flow into an expansion vessel. An integral bleed point for maintenance must be included with integral isolation.

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