Generally, when customers inquire about PE water supply pipe, they will directly report the specification model of the pipe, but for people who are just starting to contact PE pipe, they may not be too clear about some terms. Below are the common abbreviation of PE pipe terminology:
- PE100 or PE80
PE100 refers to the grade, PE100 level, PE100 (100 ~ 1.0Mpa) is the polyethylene raw material to the smallest required strength (MRS) after rounding off the number of grades, in accordance with GB/T18252 to confirm that the material with 20 ℃, 50 years, the predicted probability of 97.5% of the corresponding hydrostatic strength σLPL, according to the conversion of MRS, MRS will be multiplied by 10 that is the number of grades of the material. Grading number of the material. Generally PE100, PE80, etc.
- DN and DE
PE pipe marking DN and DE what is the difference between some of our design drawings, we can see the PE pipe labeling is sometimes DE and sometimes with DN labeling, that in the end, what does it mean?
In the early days, DN refers to the nominal diameter of the meaning, for example, in the application of steel pipe is the inner diameter, PE pipe design to DN, we are also the default for the inner diameter, such as DN100 PE pipe, basically means that the outer diameter of 110 PE pipe.
But in the State Administration of Quality Supervision, Inspection and Quarantine after the release of the new GB/T13663-2000, has been DE and DN unified to refer to the outside diameter of PE pipe, that is to say, DN200 and DE200 refers to the meaning of the outside diameter of the PE pipe.
- Mpa
Mpa refers to the pressure level, PE pipe is generally divided into five levels, respectively, 0.6Mpa, 0.8Mpa, 1.0Mpa, 1.25Mpa, 1.6Mpa. For example, 0.6Mpa on behalf of the PE pipe can withstand the pressure of 6 kilograms; 1.6Mpa on behalf of the PE pipe can withstand the pressure of 16 kilograms.
- SDR
SDR is the pipe diameter wall ratio, that is, the outer diameter divided by the wall thickness is equal to 11, and the term name is the standard size ratio. For example, SDR11, said the ratio of the outer diameter and wall thickness of the PE pipe on the SDR.
