Sched. 40
Theo,
The Americans use, basically, the same plumbing dimensions and materials we do. In contrast to Europe (especially Germany), pretty much anyone can do electrical, plumbing and (möge die Götter uns beistehen!) natural gas.
This means inspections by authorities and insurance companies are much more important than here. Not only do you have the indicator color for solvent welding, you also find specially colored inserts for lightweight metal jacketed electrical cable. When the inspector opens the junction box and sees that bright red tag, he or she knows the wires were installed properly. No tag, they can assume the rest of the wiring was poorly done.
By the way, there are three colors in common use, depending on their applications. I recently did some schedule 40 drain pipe which was solvent welded with a violent blue color - suitable for both PVC and most co-polymers, but not for connections subject to pressure above a very low level until 48 hours had past. The purple stuff I know of has a 30 minute wait time befor it can take high pressures...but you have about as much working time as with the super glues, a few seconds.
Theo,
The Americans use, basically, the same plumbing dimensions and materials we do. In contrast to Europe (especially Germany), pretty much anyone can do electrical, plumbing and (möge die Götter uns beistehen!) natural gas.
This means inspections by authorities and insurance companies are much more important than here. Not only do you have the indicator color for solvent welding, you also find specially colored inserts for lightweight metal jacketed electrical cable. When the inspector opens the junction box and sees that bright red tag, he or she knows the wires were installed properly. No tag, they can assume the rest of the wiring was poorly done.
By the way, there are three colors in common use, depending on their applications. I recently did some schedule 40 drain pipe which was solvent welded with a violent blue color - suitable for both PVC and most co-polymers, but not for connections subject to pressure above a very low level until 48 hours had past. The purple stuff I know of has a 30 minute wait time befor it can take high pressures...but you have about as much working time as with the super glues, a few seconds.
