
Product Description
Material |
PVC-U |
Specification |
50mm,75mm,110mm |
Color |
white |
Packing |
carton |
Delivery Medium |
Abt 35 days after despoit |
Application |
Delivery Water |
Sample |
Offer free samples |
OEM and ODM |
YES |

The PVC-U drain pipes from Laoshan Pipe Corporation Limited represent a pinnacle of modern plumbing technology, boasting a robust presence both domestically and internationally. These drain pipes are renowned for their exceptional longevity and unmatched resistance to corrosion, surpassing traditional cast iron pipes. In construction, they are celebrated for their lightweight nature and ease of handling, installation, and connection. This makes them a preferred choice for various applications, including civil building drainage, sewage management, chemical waste disposal, and rainwater drainage. Furthermore, our PVC-U drainage pipes and fittings are meticulously crafted to exceed the stringent standards set by GB/T5836.1-2018 and GB/T5836.2-2018, ensuring premium quality and reliability.
Our innovative product line features three versatile forms of drain pipes: straight, expanded, and double expanded, each capable of accommodating a multitude of pipe connection methods to suit diverse plumbing needs. Additionally, Laoshan Pipe Corporation Limited has pioneered the development of pressure drainage pipes tailored for rainwater management and introduced aesthetically pleasing square rain downspouts designed specifically for diverse architectural applications. Our advanced range also includes specialized drainage solutions like spiral silencers, hollow spiral silencers, and hollow wall silencers, all engineered to significantly minimize drainage noise, thus ensuring a quieter and more efficient drainage system.
Product Parameters

Numbered list |
Specification/mm |
Piece/box |
LS-3077 |
50 |
76 |
LS-3078 |
75 |
20 |
LS-3079 |
110 |
16 |
Features
★ Experience exceptional surface hardness and superior tensile strength with our piping solutions, ensuring a top-tier safety factor for unparalleled pipeline security.
★ Enjoy remarkable longevity with our products, as their outstanding resistance to aging ensures a durability that spans over half a century.
★ Built with exceptional resilience, these pipelines boast excellent corrosion resistance against inorganic acids, alkalis, and salts, making them an ideal choice for industrial sewage discharge and transportation.
★ With a minimal friction coefficient, our pipelines offer smooth water flow, reducing blockages and minimizing maintenance efforts significantly.
★ Crafted with high oxygen index materials, these pipes offer impressive self-extinguishing capabilities, enhancing safety measures.
★ The pipeline's small linear expansion coefficient, at 0.07mm/m.ºC, ensures minimal deformation from temperature changes. Its low thermal conductivity and elastic modulus provide superior frost resistance compared to traditional cast iron drainage pipes.
★ Achieve seamless installation with our pipe fittings, as their simple bonding process ensures high operational convenience and efficiency in construction.
★ Perfect for industrial and civil building indoor and outdoor drainage projects, our pipelines manage domestic sewage temperatures up to 40ºC continuously and instant sewage discharges up to 80ºC. They are also suitable for industrial wastewaters that do not corrode the pipe.
Pipe connection
★ Ensure precision in pipe socket connections by adhering strictly to the following procedures:
1. Thoroughly cleanse the pipe socket and fitting socket prior to bonding to ensure optimal adhesion.
2. Accurately measure the socket depth and mark the pipe port for precise alignment.
3. Apply adhesive evenly, beginning with the socket, followed by the fitting, ensuring a uniform coat.
4. Align, insert, and rotate 1/4 turn into the marked position for a secure fit.
5. Carefully remove any excess adhesive from the socket for a clean, professional finish.
6. Allow the bonded pipe to stand until the interface is fully cured, ensuring strong and reliable connections.
★ Adhere to these guidelines for the safe use of adhesives:
1. Utilize adhesives and cleaning agents only as needed, restricting use to trained operators.
2. Ensure no open flames are present at the bonding site and maintain excellent ventilation for safety.
3. Avoid construction below -10ºC, and refrain from using fire to cure adhesive points.
4. Equip construction personnel with gloves; if adhesive contacts eyes, rinse thoroughly with water and seek medical attention immediately.
Installation instructions
Saw pipe and groove:
Determine saw pipe lengths with precision, layer by layer, based on measurements and the dimensions of connected fittings. Employ fine tooth saws, cutters, and pipe cutting machines for accuracy. Ensure cuts are flat without deformities. File sockets for bonding into a 15°-30° groove with a medium board file, maintaining a groove length of at least 3mm and a thickness of 1/3-1/2 of the pipe wall. Remove debris post-grooving for a clean finish.
Socket protection:
Post-connection, clean extruded adhesive with cotton yarn or a dry cloth dipped in acetone or similar detergent. Allow the socket to remain static until the adhesive cures, factoring in weather conditions, with extended curing times for winter construction.
Why Choose us

Company Profile
LAOSHAN PIPE Corporation Limited stands proudly in Qingdao, an iconic seaside tourist destination celebrated as the Chinese brand capital.Established in 1994, This dynamic high-tech environmental protection technology company excels in the innovation and production of cutting-edge plastic pipeline systems, offering comprehensive services in research, development, manufacturing, sales, and installation.Our company boasts an illustrious 30+ year legacy as a manufacturer, strategically sprawling across 300,000 square meters,complete with a substantial investment of $80 million. We operate under a scientifically structured management model, utilizing a modern factory design equipped with state-of-the-art production technology. Our impressive infrastructure includes over 300 sets of advanced pipeline, pipe, and pipe fitting machinery, complemented by more than 10 pieces of sophisticated testing equipment sourced both domestically and internationally, achieving an unparalleled production scale in China. With an astounding annual throughput exceeding 300,000 tons, we offer 5 major product series across more than 150 specifications, catering to our customers' diverse needs.
In 2021, the company proudly achieved ISO9001:2015 quality management system certification and ISO14001:2015 environmental management system certification. The 'Laoshan' brand garnered significant accolades, being recognized as the 'Qingdao Famous Trademark' in 2013, the 'Contract Abiding and Creditworthy Enterprise' in 2014, the 'Shandong Famous Trademark' in 2015, and the 'Specialized, Refined, Special, and New' enterprise in 2021.
Our comprehensive product portfolio comprises more than ten distinct series across five categories: PVC-U, PP-R, PE, HDPE, and PE-RT. These versatile products are extensively utilized in a myriad of applications including real estate construction engineering, municipal landscaping, sewage treatment, urban water supply and drainage, interior decoration, communication, power transmission, gas conveyance, as well as animal husbandry, and agricultural drainage and irrigation projects.
Renowned as a prestigious enterprise in China, we offer competitive pricing and exceptional service to clients around the globe. Guided by a wealth of manufacturing experience, a robust R&D team, cutting-edge facilities, and intelligent management systems, our products have successfully penetrated international markets, reaching over 40 countries including Europe, the Middle East, Southeast Asia, South America, North America, Australia, South Korea, and India.

Certifications
Packaging & Shipping
FAQ
Q:Are you a manufacture or trading company?
A:Yes,we are professional manufacturer in China, and have been this field for 30+years.
Q: Why choose us?
A: We are a professional leader in PVC/PPR/HDPE pipe factories, we offer pipeline system one-stop services with competitive prices and fast delivery times.
Q: What is your MOQ?
A: As customer's request.
Q: How can I get some samples?
A: We are honored to offer you free samples, just need to pay the freight cost.
Q:What payment terms do you support?
A:TT,TD,TP,L/C,Western Union,Paypal,Money Gram are available,and for TT,we accept 30%deposit in advance,70% balance against copy of B/L.
Q: Can I make my own design and logo for the product?
A: Yes, we do OEM. Welcome partner from globally, we can make your product in China.
Q:What's your Price Term?
A:Usually we offer based FOB QINGDAO port, CHINA. We can also quote ClF per your request.
Q:What's your Delivery Time?
A:Normally we have stock,so our delivery will be fast.For those customized products,it will take 20-25 days,but it depends on the quantity.
Q:What are the advantages of ppr pipes?
A:1. Resistant to Heat and Cold.
2. Non-toxic suitable for human body and environment.
3. Long lasting without worrying about leaking pipes.
4.Abrasion resistance and electrolysis resistant.
Q:Is PPR piping safe to use?
A:This electrolytic and chemical inertness makes PPR piping safe to use in cases of high water salinity or even highly corrosive chemicals.
Q:What is PPR pipe used for?
A:Industrial piping for transferring water, sanitary liquids, liquid food products, compressed air, and aggressive chemicals.
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