Cách chọn ống PPR？

Ống PPR have become the preferred choice for pipe renovation due to their energy efficiency, trọng lượng nhẹ, cường độ cao, chống ăn mòn, vân vân. Tuy nhiên, attention should be paid to the problem of low-temperature brittleness. When purchasing, look for national standards and products from large factories. During construction, avoid rough handling and direct sunlight.

Đặc trưng & MỘTdvantages of PPR Pips

PPR pipes are widely used in building water supply and pipe renovation due to their energy efficiency, thân thiện với môi trường, trọng lượng nhẹ, high strength and corrosion resistance. It is not only energy-saving and material-saving, but also in line with the concept of environmental protection. Hơn thế nữa, it is lightweight, strong and highly resistant to corrosion. Thành trong của nó mịn và không dễ bị bong tróc, making construction and maintenance easy, and with a service life of several decades, it is undoubtedly an ideal choice for pipe renovation.

Thấp-Temperature Brittleness Problem of PPR Pipes

As PPR pipes are a new type of water supply pipe, our understanding of them is not deep enough. Ống PPR, as random copolymer polypropylene, have unique properties that determine the brittleness that may occur in low-temperature environments. When the temperature is below minus 5 độ C, the flexibility of the pipe decreases and the rigidity increases, thus showing brittle characteristics. Under the influence of external forces, especially impacts and drops during handling, the pipe may crack in a straight line, and the cracking will start from the inner pipe and extend outward. This crack may not be noticeable at first, but if the pipe is cut off from the crack line during construction, the crack line will quickly extend along the axis. As a result, genuine PPR pipes can be smashed in low-temperature conditions, while adulterated or counterfeit PPR pipes may exhibit the opposite properties.

Standards and Manufacturer Selection of PPR Pipes

When purchasing PPR pipes, pay attention to whether they comply with relevant standards such as GB/ T18742-2002 “Plastic piping systems for hot and cold water – PP – Phần 2 đường ống” and GB/ T18742-2002 “plastic piping systems for hot and cold water – PP – Phần 3 phụ kiện”. A genuine PPR pipe should have excellent performance and a service life of more than 50 năm. Vì thế, it is recommended that consumers choose PPR pipes produced by large manufacturers, which are of reliable quality and have a large market share, to ensure that they purchase truly standard-compliant products and enjoy perfect after-sales service.

Construction Tips

PPR pipes should follow the GB/T50349-2005 standard scheme during storage, handling and construction. Although PPR pipes may show brittleness at low temperatures, it can be effectively prevented by taking appropriate measures such as handling with care, avoiding dragging and dropping. During construction, although PPR pipes have a certain degree of flexibility, we must keep the pipes naturally straight and avoid excessive bending or forced twisting, because there is a fatigue strength limit for any material. Đồng thời, PPR pipes should not be exposed and should not be used for long periods in the sun. If they need to be used outdoors, they should be protected with dark sleeves.

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.

Nếu bạn có bất kỳ thắc mắc nào về ống PPR, xin vui lòng liên hệ với chúng tôi!

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