玻璃钢夹砂管可以根据要求承受的内压和外压以及现场具体施工使用条件进行管材最经济的结构工艺设计，工作压力为0.1-2.5MPa，刚度等级大于等于2500Pa等各种不同刚度，可进行最经济的适合水力条件的管材结构设计，玻璃钢夹砂管的管材结构可设计性很强。
The FRP sand pipe can carry out the most economical structural process design of the pipe according to the required internal and external pressure and the specific construction and use conditions on site. The working pressure is 0.1-2.5mpa, and the stiffness grade is greater than or equal to 2500pa. The most economical pipe structure design suitable for hydraulic conditions can be carried out. The pipe structure of FRP sand pipe has strong designability.
PE塑料管和球墨铸铁管的压力等级仅为规定的几个级别，PE塑料管的刚度等级一般仅有4000Pa和8000Pa两种，适用工程实际具有一定的局限性。
The pressure grade of PE plastic pipe and ductile iron pipe is only a few specified grades, and the stiffness grade of PE plastic pipe is generally only 4000Pa and 8000pa, which is applicable to engineering practice and has certain limitations.