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Series VA

Vacuum Breaker Valves for controlled air admission

Automatic protection against vacuum in hydraulic pipelines through controlled air inlets when a pressure drop occurs in the network.

Series VA

In water transport networks, pumping mains or large pipelines, depression situations may occur as a result of pump shutdowns, emptying or hydraulic transients. Series VA responds automatically to these pressure drops, preventing deformation or structural damage to the pipeline.

How a Series VA valve works

The Vacuum Breaker Valve opens automatically when it detects a pressure drop in the pipeline and allows air to enter to compensate for the internal depression.

01
Series VA sequence 1

The valve will open in response to a minimal depression in the pipeline, caused by drains, ruptures,etc

02
Series VA sequence 2

The valve will remain in closed position both during pipeline filling and during normal operation of the installation

Manufacturing range

Sizes DN50–DN1000

Dimensional range indicated for Series VA

Pressures PN10–PN25 / #150

Nominal pressures considered for this range of Vacuum Breaker Valves.

Standards EN / ANSI

Applicable standards

Applications

Products designed for critical applications

IRUA air valves are designed to work in demanding hydraulic infrastructures, from water supply networks and pumping stations to desalination plants, mining or industry and power generation.

Water supply networks
Pumping stations
Desalination plants
Mining
Irrigation
Wastewater
Industry and power generation.

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