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Sử dụng loại ống PVC nào cho hệ thống thoát nước mưa?
Trong xây dựng hiện đại và kỹ thuật đô thị, Việc thiết kế và lựa chọn vật liệu của hệ thống thoát nước là hết sức quan trọng.. PVC (polyvinyl clorua) đường ống has become one of the preferred materials for drainage due to its lightweight, chống ăn mòn, and easy-to-install properties. Tuy nhiên, many users still have questions about specific application scenarios for PVC pipe: “Can PVC pipe be used in drainage systems? Which PVC pipe is suitable for rainwater drainage?”.In this article, we will analyze the drainage performance of PVC pipe, selection criteria and construction points, to provide you with professional and practical content support.
First part, Why choose PVC pipe for drainage system?
1, PVC pipe takes an important role in drainage system, because of the following advantages:
Chống ăn mòn mạnh: PVC pipes are highly resistant to acids, chất kiềm, muối và các hóa chất khác, and are more suitable than other pipes for conveying sewage or rainwater containing impurities.
Nhẹ và dễ cài đặt: the weight of PVC pipe is only 1/5 of cast iron pipe, which significantly reduces transportation and construction costs.
Tường trong mịn: low coefficient of friction and low resistance to water flow allow magazines and sewage to pass through quickly, reducing the risk of clogging.
Tuổi thọ dài: can be used for more than 50 years under normal environment, with extremely low maintenance cost.
Environmental protection: recyclable and reusable, in line with green building standards.
2. Diversified application scenarios for PVC pipes: infrastructure support from households to cities
Residential and commercial buildings:
PVC pipes are widely used in vertical risers and horizontal drainage branches of buildings, ví dụ., kitchen wastewater, bathroom wastewater discharge. Their silent design (e.g. internal spiral silencer) reduces water flow noise and improves living comfort.
Balcony and roof drainage:
Combined with rainwater hoppers and gutters, DN75~110mm PVC pipes can efficiently channel storm water and prevent roof leakage.
Road rainwater pipe network:
SN8 PVC pipes with high cyclic stiffness are buried under the roads, and through the linkage design of rainwater grates, pipes and sedimentation tanks, surface runoff can be quickly channeled to avoid urban flooding.
Park and square drainage:
Under the green belt paved with permeable layer and PVC blind pipe (porous water seepage pipe), not only can discharge water, but also to achieve rainwater recharge underground, help sponge city construction.
Part II, What kind of PVC pipe is suitable for storm-water drainage system?
Comparative Analysis of PVC Pipe and Other Pipes
| Nguyên vật liệu | Strengths | Shortcoming | Các tình huống áp dụng |
| ống nhựa PVC | Low cost, corrosion resistant, and easy to install | Poor UV resistance (need to be buried) | 90% civil drainage system |
| Cast iron pipes | Strong holding capacity | Heavy weight, easy to rust | Industrial high pressure drainage |
| ống nhựa | Good flexibility | High unit price, complex connection process | Earthquake zone area |
1. Storm-water drainage needs to cope with the following challenges:
Large instantaneous flow: rapid diversion is required during heavy rainfall to avoid waterlogging.
More impurities: leaves, mud, sand and other easy to cause clogging of the pipeline.
Temperature effects: outdoor environments need to withstand temperature variations from -10°C to 60°C.
Types of PVC pipe that can be used for storm-water drainage applications
According to international standards (e.g. ASTM D3034, ISO 4435), the following two types of PVC pipes are recommended:
PVC pipe installation requirements
Cutting pipe: use special pipe cutter to ensure a smooth cut.
Socket connection: apply PVC special glue, insert the depth of 1/3 of the pipe diameter.
Fixed bracket: set up a bracket every 1.5 mét, the elbow needs to be reinforced.
Backfill test: backfill in layers and do water test to check leakage.
Common mistakes and ways to avoid them in the installation of PVC pipes that can be used for rainwater drainage
Mistake 1: Pipe leakage.
Reason: Uneven application of glue → Apply glue evenly with the help of a serrated brush and complete the connection within 30 giây.
Mistake 2: Pipe deformation.
Reason: Failure to install expansion joints leads to thermal expansion and contraction → Set up an expansion joint every certain distance
How to maintain and extend the service life of PVC pipes used for storm water drainage?
Regular inspection: Clean the deposits in the inspection well before the rainy season.
Anti-freezing measures: cold areas can be wrapped with insulation cotton or buried deep below the permafrost layer.
Chemical protection: Avoid discharging strong acid (pH<2) or alkali (pH>12) fluids.
Avoid prolonged exposure: UV rays can cause surface chalking. Buried in the ground or with an external protective layer is required.
As a professional PVC pipe supplier, we offer a full range of products from DN50 to DN600 and support customized solutions. Contact us now for free technical consultation and quotation!
Nhà cung cấp
Công ty công nghệ năng lượng Lạc Dương Datang, Công ty TNHH. là nhà sản xuất hàng đầu Trung Quốc chuyên về ống và phụ kiện nhựa chất lượng cao. Được trang bị dây chuyền sản xuất tự động hiện đại và được hỗ trợ bởi đội ngũ chuyên gia 200 chuyên gia, chúng tôi cung cấp một dòng sản phẩm phong phú bao gồm hơn 150 types of plastic pipes and fittings designed for water supply and drainage systems, truyền khí, và hệ thống sưởi sàn. Sản phẩm chính của chúng tôi bao gồm Ống và phụ kiện PVC, Thể dục (HDPE) Ống và phụ kiện, Ống và phụ kiện PPR, và ống sưởi sàn PEX.
Should you have any inquiries regarding Ống và phụ kiện PVC, xin vui lòng liên hệ với chúng tôi!
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