2019/1/24 10:31:37
PP管道的外径有dn25.32.40.50.63.75.90.110.125.140.160.180.200.225.250.280.315.355.400.450.500.560.630.710.800.900.1000.1100.1200
压力等级有0.3MPa,0.4MPa,0.6MPa,0.8MPa,1.0MPa
打个比方。外径90和外径110的管子十公斤压力下。90的壁厚是7.5,,110的壁厚是9.1。8公斤压力下90的壁厚是6.1。110的壁厚是7.4。管子的多少公斤下壁厚是多少,这个是有国家标准的。