Key words: timetable 40, timetable 80
Schedule 40 and 80 refer to the reference tables published by the American National Standards Association (ANSI).


When talking about seamless pipes, different schedules refer to pipe size, thickness and maximum pressure.


Smaller progress pipelines are often cheaper than larger progress pipelines. Depending on the volume and pressure of the material moving along the pipeline, the cost of the material used can be selected according to different schedules. If a low-pressure drain pipe is installed, the Schedule 40 seamless pipe will be more sufficient and cost-effective than the Schedule 120 seamless pipe.