A regulator mounted safety device suitable for all welding and cutting operations, fully complying with EN730, this lift to reset unit incorporates the following features. FA Sintered flame arresting element.
NV Non return valve to prevent reverse flow of gases.
PV Pressure trip device, activated by pressure wave accompanying a flashback.
TV thermal trip device, activated by heat to permanently cut off the gas supply.
SI Status indicator shows green when unit is ready for use. In the event of a flashback the item can be reset by lifting and releasing the bonnet.