Que tipo de tubo de PVC usar para sistema de drenagem de águas pluviais?

Na construção moderna e engenharia municipal, o projeto e a seleção de materiais dos sistemas de drenagem são de suma importância. PVC (cloreto de polivinila) cano tornou-se um dos materiais preferidos para drenagem devido ao seu peso leve, resistente à corrosão, e propriedades fáceis de instalar. No entanto, muitos usuários ainda têm dúvidas sobre cenários específicos de aplicação para tubos de PVC: “O tubo de PVC pode ser usado em sistemas de drenagem? Qual tubo de PVC é adequado para drenagem de águas pluviais?”.Neste artigo, analisaremos o desempenho de drenagem do tubo de PVC, critérios de seleção e pontos de construção, para fornecer suporte de conteúdo profissional e prático.

Primeira parte, Por que escolher tubo de PVC para sistema de drenagem?

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, por exemplo, kitchen wastewater, bathroom wastewater discharge. Their silent design (por exemplo. 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

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, lama, 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 (por exemplo. 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 metros, 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 segundos.  

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!  

Fornecedor

Luoyang Datang Energia Tech Co., Ltda. é um fabricante chinês líder especializado em tubos e acessórios de plástico de alta qualidade. Equipada com linhas de produção automatizadas de última geração e apoiada por uma equipe de 200 profissionais, oferecemos uma extensa linha de produtos que compreende mais de 150 types of plastic pipes and fittings designed for water supply and drainage systems, transmissão de gás, e sistemas de aquecimento de piso. Nossos principais produtos incluem Tubos e acessórios de PVC, Educação Física (PEAD) Tubos e conexões, Tubos e conexões PPR, e tubos de aquecimento de piso PEX.

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