Recognition

Production of qualified PP-R pipe extrusion equipment, the need for raw materials and strict requirements. Hot and cold water pipes can produce PP-specific raw materials in three ways:

1, by adding a certain amount of homopolymer PP toughening additives made by grain blending, this material commonly known as PP-H.

2, using PP and PE block copolymer, this material commonly known as PP-B.

3, the use of advanced technology gas copolymer, PE in the molecular chain of PP random, evenly to polymerization, the material commonly known as PP-R.

Used to produce PPR plastic pipe extruder screw barrel to use sophisticated computer models to determine the precise calculation of the paragraphs of the pressure distribution, melting rate, it has a good low-temperature plasticizing capacity. The ordinary single-screw extruder can not be used to produce PP-R pipe.

Currently on the market 70-80% PP-R pipes are not the real PP-R pipe. In order to help the user from the initial recognition on the shape and feel the authenticity of PP-R pipes and ppr pipe fittings.

Refer to the following identification methods:

(1) Product Name: PP-R product name should be "hot and cold water pipes with polypropylene or" PP-R cold and hot water pipe "where the labeled ultra-fine particles modified polypropylene tubes (PP-R) or PP-R cold-water pipes, PP-R hot water pipes, PP-E tubes, etc., are non-formal name of the pseudo-PP-R pipe.

(2) product testing unit is a non-professional units, the test item content and PP-R pipe does not match the standard set out in the content, products, or products recommended departmental promotion department, for PP-R product standards do not understand or without PP-R standards for the department The certificates are issued by the pseudo-PP-R.

(3) the density of pseudo-PP-R slightly larger than the PP-R.

(4) PP-R pipe matte white or other colors of the matte, pseudo-PP-R pipe shiny bright or vibrant color.

(5) PP-R pipe completely opaque, pseudo-PP-R pipe slightly translucent or semi-translucent.

(6) PP-R pipe soft touch, pseudo-PP-R pipe feel smooth.

(7) PP-R pipe landing sound more boring, pseudo-PP-R pipe landing sound more crisp.

The real PP-R pipe should conform to the standard ISO / DIS 15874.2-1999 "hot and cold water with a plastic piping system - PP second part of the pipe" pipe fittings should conform to the standard ISO / DIS 15874.2-1999, "hot and cold water with a plastic pipe Systems - PP third in charge of parts "; pseudo-PP-R pipes and pipe fittings of the performance is not pass the above criteria. It should be noted that the pseudo-life of PP-R pipe is only 1-5 years, while the real life of PP-R pipes are more than 50 years.