This equipment has been designed for stopping off low pressure gas mains up to maximum pressure of 0.34 bar. The whole operation is carried out through a system of valves and is gas free. It is available in a range of sizes from 80mm-1000mm.
ALH Systems offer a complete package of bagtube equipment, including drilling machines, plug insertion equipment and flow stopping bags.
80mm-400mm Low Pressure Bagtube
This equipment has been designed with simplicity in mind to make it easy to use and be cost effective. It can also be manufactured to suit individual customer requirements. With standard equipment the bagtube requires a 2” BSP or NPT hole for entry. Both supported and unsupported systems are available.
450mm-1000mm Low Pressure Bagtube
Manufactured specifically to cater for the safe stopping off of large diameter iron and steel mains in the range 450mm-1000mm working up to a maximum pressure of 35mbar. Major components are aluminium so that it is possible to lift the bagtube in and out of the excavation by hand
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