How to connect PPR water pipes: Hot topics and practical guides on the Internet in the past 10 days
Recently, the installation and connection of PPR water pipes has become a hot topic in the field of home decoration, especially in water and electricity renovation and old house renovation projects. The following is compiled based on the hot spots on the entire network in the past 10 days.PPR water pipe connection methodand precautions to help you complete the construction easily.
1. Comparison of PPR water pipe connection methods
| Connection method | Applicable scenarios | Tool requirements | Operation difficulty |
|---|---|---|---|
| hot melt connection | Conventional straight pipe/elbow connection | Hot melt machine, pipe cutter | ★★★ |
| Flange connection | Large diameter pipe or equipment interface | Flange, bolt | ★★☆ |
| Quick connector connection | Temporary repairs or tight spaces | Quick connector | ★☆☆ |
2. Detailed explanation of hot melt connection steps (the most popular recently)
1.Material preparation:PPR pipes, pipe fittings (elbows/tee), hot melt machine (260±5℃), pipe cutter.
2.Cutting process:Cut the pipe vertically with a pipe cutter, making sure the cut is smooth and free of burrs.
3.Clean mark:Use alcohol to clean the connecting surfaces of pipes and fittings, and mark the weld depth with a pencil.
4.Heating welding:Insert the pipe and pipe fittings into the hot melt die head at the same time. For the heating time, refer to the table below:
| Pipe diameter (mm) | Heating time (seconds) | Cooling time (minutes) |
|---|---|---|
| 20 | 5-6 | 2 |
| 25 | 7-8 | 3 |
| 32 | 8-10 | 4 |
5.Socket fixation:After heating, quickly insert vertically and maintain pressure to avoid rotation.
3. Top 3 recent popular issues
Q1: What should I do if the seams of PPR water pipes leak?
According to Douyin’s #Home Improvement Maintenance topic data, 58% of water leaks are caused by insufficient heating time. It is recommended to re-cut the leaking section and heat-melt it twice according to the standard process.
Q2: How to identify high-quality PPR pipes?
Weibo #Decoration pit avoidance guide recommends: ① Check whether the thickness of the pipe wall is uniform; ② Smell whether there is a pungent smell; ③ Check whether the inner wall is smooth after welding.
Q3: Precautions for winter construction
Actual measurement by Xiaohongshu users: When the ambient temperature is lower than 5°C, the heating time needs to be extended by 20%, and the cooling interface should be wrapped with insulation material.
4. Safety regulations (emphasis in bold)
1.It is strictly prohibited to grill the pipes over an open flame, PPR material is flammable and deforms at high temperatures.
2. Must be used when weldingWear heat-resistant gloves, recent hot searches on Baidu show that burn accidents occurred in many places.
3. Required after installation1.5 times working pressure pressure test, keep the pressure for 30 minutes without leakage before concealing it.
5. Tool purchasing trends
| Tool type | Popular brands | JD sales volume in the past 7 days | price range |
|---|---|---|---|
| Digital display hot melt machine | Rifeng/Weixing | 1200+ | 200-400 yuan |
| Electric pipe cutter | Makita/Hongcheng | 860+ | 150-300 yuan |
Through the above structured data and methods, you can systematically master PPR water pipe connection technology. If you need more details, you can follow Zhihu's "Home Improvement and Plumbing" topic or the related teaching videos of Station B (recently viewed more than 500,000 times).
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