Tips for buying home improvement tubing:

Take a look

Model, lot number, standard number and other information is complete? Is the brand trademark clear and standardized? We must stay away from cottage! In this era of looking at the face, choose the pipe is not lost to choose the beauty, a good pipe is not only uniform and consistent wall thickness, the color is also pure and uniform.

Myth: PP-R pipe white good?

In fact, all pipes are doped with masterbatch, white is no exception, but the quality of the masterbatch and join the specific gravity are in line with national standards. If a large number of calcium powder added in the production process, white PP-R pipe will be gray or porcelain white, many customers living in the new house 2-3 years after the discovery of the home buried pipeline pulverization, false welding disengagement caused by water leakage is due to this reason. In line with the standards, the darker the pipe color, the better its shade, the pipe in the water is not easy to breed bacteria, breeding algae. Therefore, the light translucent white pipe is not recommended for open installation system.

Touch

Both internal and external surfaces should be smooth and flat, without surface defects such as depressions, bubbles, cracks, etc., in order to ensure smooth water flow and no accumulation of scale. If it feels rough, it may be mixed with other impurities.

Note: Some black-hearted manufacturers to reduce costs, in the pipe mixed with waste, seriously affecting the water. Pipe mixed with waste is generally uneven, there will be trachoma or blistering phenomenon, and in the welding, heat fusion machine heat fusion head will remain slag foam.

Measurement

Buying and selling transactions hate the lack of catty, length and thickness are not in place, this kind of production process can still be trusted?

The same water pipe series have standard specifications, such as S3.2 pipe series dn20 wall thickness needs to be up to 2.8mm, part of the water pipe is thin, only 2.3mm, and the right picture of the PP-R water pipe wall thickness up to 2.8mm (white outer layer of 0.8mm + green inner layer of 2mm). Bring a ruler, site inspection!

Myth: The thicker the wall of the PP-R pipe, the better?

The pipe is not the thicker the better. Because the thicker the pipe, the smaller the runoff will be. The key is still the uniformity of the wall thickness, especially important for hot water systems. Consumers should make a specification choice based on the temperature and pressure of the system.

Pinch it.

Why do pickers tend to use bamboo stretchers? Because bamboo is strong and durable. Tubing also needs to be tough. Give the pipe a certain pressure, test the resilience of the pipe. Good quality PP-R pipe “resilience” is good, but the temperature is lower than 10 degrees and then good PP-R pipe can be smashed.

Myth: PP-R pipe the harder the better?

Strong hardness is not equal to good elasticity, some manufacturers by adding too much calcium carbonate and other impurities to improve the hardness, how can not smash, but easy to use a long time brittle. Similarly, if the pipe can be easily pinched deformation then the hardness is not qualified.

Smell

PP-R pipe main material is polypropylene, good pipe is not any odor, while the poor PP-R pipe may be mixed with polyethylene, will produce a bad smell, so when you buy the pipe, use the method of smell to identify. Attention:

1)Bring your nose close to the pipe neighborhood and smell it.

2)Put a certain number of pipes in hot water to boil and smell them

Pipe construction welding, good quality PP-R pipe with fire without smoke and odor, the melt is clean and transparent, poor-quality pipe in the combustion process will be black smoke, pungent odor.

The above is how to choose and buy home improvement pipe knowledge, the content is only for your reference, I hope to help you.