According to the customers we serve, the length of most customer requirements is as follows:
3 Meters (9.84 ft)
6 Meters (19.69 ft)
12 Meters (39.37 ft, only for special project)
Reasonable length is convenient for long-distance transportation and installation. Normally, electrical pipes are loaded in containers when they are shipped abroad, and then delivered by sea. Even short-distance transportation requires the use of trucks. If it is too long, it is not easy to load and accidents are prone to occur. In addition, shorter pipes are also easy to install, because we also need multiple pipes in most cases during installation.
These two pipes are just a standard. The most critical parameter is thickness. Schedule 80 is much thicker than Schedule 40 PVC pipe, and Sch 80 pipe is gray or dark gray in general. Sch 40 PVC pipe is white compared with the same period, and the thickness is thinner than Sch 80 PVC pipe.
So it is obvious from the comparison of the two parameters. Schedule 40 PVC pipe can be considered for home improvement or indoor decoration, while Schedule 80 PVC pipe is much stronger, so it can be considered for outdoor projects.
For more details you can refer our recent post in question 3,
https://www.ctube-gr.com/news/10-things-you-must-know-before-purchasing-electrical-conduit-pipe.html
Our PVC pipe is produced in China and designed in Taiwan.
PVC pipe sold in the world is manufactured at 2 different facilities located in China.