a cross country pipeline is a pipeline which starts from a country and its destination is Another Country but it passes through one or more other countries. It can carry oil gas supply petroleum supply etc.
If you are asking what is the spring line of a pipe, it is the point of greatest horizontal dimension when looking at an end cross section of a pipe.
stratchern pipery are very useful or a fueles pipe
concrete
Alaska
Olympic cross-country skiing is many people racing to see who can get to the finish line faster by cross-country skiing, or skiing on flat land.
By far the cross connection of potable to non potable water sources
Sizing of the line is an important study and calls for a techno-economic analysis. The various parameters that affect line size are:* Pressure: High pressure will reduce the pipe size, but will increase the pipe thickness* Size of the pipe: The bigger the pipe, the higher the cost* Thickness: Various factors affect the pipe thickness. E.g. Soil cover with the line having internal pressure/line in empty condition but having external soil pressure etc* Pipe material* Booster stations: How many booster stations will be there along the route? If the fluid pressure is low, the thickness decreases, but we need more booster stations and the reverse is the case if the fluid pressure is high* Pipe fabrication: Manufactured pipe versus roll-and-weld pipe* Buoyancy effect: Under-soil or underwater pipeline gets lifted up
reticulated system pipe line colour code
Heck no!!
A vent pipe is attached on top of a waste line NOT a cross connection A storm line connected into a soil or waste line NOT a cross connection A connection between potable water and water of unknown quality is a CROSS CONNECTION. Any fixture that is not protected by a vacuum breaker or AIR GAP or Air Break could allow a cross connection
It depends on what you mean by a 30 pipe. Is 30 the cross sectional area - in which case, what is the length of the pipe? Is 30 the length - in which case, what is the cross-sectional area?
The flow-line of a pipe is the bottom inside portion of the pipe. Flow-lines are generally reffered to when establishing the elevation of the pipe work.