求翻译：J型全自动自清洗过滤器的规格型号按进出水口的公称通径区分，常规产品有3、4、5、6、8、10、12、14、16、18、20、24共12种规格，公称压力均为 PN＝1.6MPa 。是什么意思？

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J automatic self-cleaning filter specifications and models of inlet and exit from the Nominal diameter distinction, conventional product 3   , 4, 5, 6    , 8, 10, 12    , 14, 16, 18    , 20 , 24 12 total  specifications, nominal pressure are PN MPa = 1.6 .

The J completely automatic from cleans the filter the specification model according to the turnover drainage opening nominal size discrimination, the conventional product has 3 , 4 , 5 , 6 , 8 , 10 , 12 , 14 , 16 , 18 , 20 , 24  altogether 12 kind of specifications, the nominal pressure

J-specification model of the automatic self-cleaning filter inlet and outlet of nominal distinction between conventional products with 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 24, a total of 12 kinds of specifications, the nominal pressure is PN=1.6MPa.

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