Huntingdon Fusion Techniques (HFT®), a worldwide specialist in weld purging products, has manufactured a PurgeGate® Valve System in order to prevent the over-pressurising of inflatable tube and pipe weld purging systems.
During the welding process, inflatable dams are at risk of overinflating as the heat caused by the procedure rises, potentially causing them to burst.
If a rupture occurs, the purge is lost and the weld will immediately oxidise due to the incoming air, causing the whole welding process to start again.
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