Do You Know the Red or Blue Line on the PPR Water Pipe?

At present, most of the water pipes and heating connection pipes are PPR pipes. ：As a professional plastic extrusion machine manufacturer, today Xinrong is going to share some useful knowledge with you. Earlier, we have also talked about how to distinguish the pros and cons of PPR tubes. Today, I want to share with you the details of PPR tubes-color bars.

How many colors are there on the PPR water pipe?

There are two colors on the PPR water pipe that produced by PPR pipe extrusion machine, which are red and blue. The national standard stipulates that the red or blue color bars of the PPR tube must not be less than two. (there is only one color PPR tube, use it with caution!)

What is the significance of the color of the color bar?

The red PPR means that the tube wall thickness is large. In the same way, its long-term compressive strength is higher at high temperatures. The PPR of the blue bar is small compared to the thickness of the tube wall, and its compressive strength under long-term high temperature is smaller. In the national standard, the maximum nominal pressure of the blue PPR pipe is 16 kg. This nominal pressure is not the burst pressure. It means the average stress that can be used for 50 years at 20 degrees.

The maximum nominal pressure of the red PPR pipe is 25 kg. That is to say, the PPR of the red bar is relatively more pressure-resistant and more "manufactured" than the PPR tube of the blue bar.

How to choose a PPR water pipe suitable for your family?

1. If it is used on a heating pipe or a water heater pipe, no matter how much the pressure is, a red bar must be used.

2. If it is a normal temperature pipe used on ordinary tap water, if the system's long-term pressure does not exceed 16 kg, you can use the blue PPR; if the system's long-term pressure exceeds 16 kg, you must also use the red PPR.

3. Considering that most people do not understand the true characteristics of PPR products, currently retail stores generally recommend PPR tubes with red bars. When you choose, you must choose a brand with guaranteed quality, brand and service.

Xinrong is an excellent double wall corrugated pipe extrusion supplier. We stick to the road of people oriented and market-oriented. We take quality as life, service as mission and science as pioneer. We sincerely hope to cooperate with friends at home & abroad, and create a better future together.