Hot keywords: Color stone metal tile Vermiculite metal tile Guangzhou metal tile manufacturer
- All
- Product Management
- News
- Introduction
- Company Branches
- FAQ
- Company Video
- Company Brochure
News
Contact Nuoran
Factory address: Opposite Huagang Test Drive Center, Huagang Avenue, Huadu Auto City, Guangzhou
Company address: Room 711, Building B, Fuli Yingtai Plaza, No. 100, Huangpu Avenue West, Zhujiang New Town, Guangzhou
Tel: 020-87656059
Fax: 020-87660664
Email: info@nuoran.com
Contact person: Mr. Zhang 13570591340
Tips for Choosing High-Quality PVC Rain Gutters
Time:
2019-08-13 21:08
Source:
Xinhua News Agency
There are four tips for buying high-quality PVC rainwater pipes. Before discussing the selection tips, let's first understand PVC rainwater pipe materials. PVC downpipe Is the abbreviation for hard polyvinyl chloride pipe materials used for building drainage. It uses PVC resin as the main raw material, with the addition of an appropriate amount of fillers and suitable auxiliaries.
PVC pipe materials have good chemical corrosion resistance; they have self-extinguishing and flame-retardant properties; good aging resistance; good electrical properties; smooth inner walls, small inner wall surface tension, making it difficult to form scale, and fluid transport capacity is 43.7% higher than that of cast iron pipes; lighter than steel and iron pipes, easy to flare, bond, and bend, and the installation workload is 1/2 that of steel pipes, etc. These characteristics make it widely used in various construction projects.
The main unqualified items of PVC pipe materials are density and tensile yield strength. Density and tensile yield strength are the main quality indicators of hard polyvinyl chloride pipe materials. Unqualified density will lead to unqualified mechanical properties of PVC pipe materials, and unqualified tensile yield strength will make the pipe materials easy to break. The reason for the unqualified products is mainly that the manufacturers excessively reduce costs, adding a large amount of calcium powder and recycled waste materials, leading to a decline in quality.

Nuo'an rainwater pipe manufacturer suggests that you should pay attention to the following points when purchasing PVC pipe materials:
1. For the most common white PVC rainwater pipes, the color should be milky white and uniform, and both the inner and outer walls should be relatively smooth but have a slightly tough feel. Inferior PVC rainwater pipes are either snow-white or yellowish, and are harder. Some have uneven colors, some have particularly smooth outer walls, while the inner walls appear rough, sometimes with pinholes or small holes.
2. The toughness of PVC rainwater pipes is a very critical indicator. For pipes with high toughness, when we saw them into narrow strips and try to bend them 180°, if they break with one bend, it indicates that the toughness is very poor and the brittleness is high; if it is difficult to break, it indicates that it has toughness, and the more force required to break the pipe during bending, the better the strength and generally good toughness. Finally, observe the fracture (excluding the saw cut), the finer the fracture, the better the homogeneity, strength, and toughness of the pipe material.
3. The impact resistance of PVC rainwater pipes can also be roughly judged by a simple method. Choose an environment where the room temperature is close to 20℃, and use a hammer to hit a 200mm long pipe section (for a 110mm pipe). For good pipe materials, it is difficult to break it with human force in one hit. (The thicker the pipe, the greater the bearing capacity).
4. When users choose PVC rainwater pipes, they should choose products from large, well-known enterprises at reputable dealerships, or purchase from the direct sales points of well-known brands.