When clear drawings need to be made of 3 dimensional objects, then isometric drawing is required. HQM offers the option of isometry and production supervision on site. Every chemical substance, for instance liquids and gasses, can be sent through a pipeline. There are pipelines for transportation of crude and refined petroleum, fuels -like oil, natural gas and bio fuels- and other liquids, including waste water, sludge, water and beer.
Oil pipelines are made of steel pipes which usually will be dug in. The oil is transferred through the pipelines by pumping stations along the pipeline. Natural gas (and similar gaseous fuels) are slightly pressured in liquids known as Natural Gas Liquids (NGL’s). Natural gas pipelines are made of carbon steel. The transport of hydrogen pipelines is the transit of hydrogen through a pipe. District heating or teleheating systems use a network of isolated pipes which can transport heated water, pressured warm water or sometimes steam to the client.