| 摘要 |
A gas main and service vent 1 for venting gas from a gas main or service pipe has a conduit 3 with a gas inlet 7 for receiving gas from the gas main or service pipe and a gas outlet 9 for venting gas from the gas main or service pipe into the atmosphere. The conduit is positionable in a venting configuration in which the gas outlet is at a pre-determined height. A stand, which may comprise a plurality of collapsible legs 5, is integral or releaseably attachable to the conduit and supports the conduit in the venting configuration. The gas outlet 9 is preferably at least 2m above the vent 1. |
