| Customization: | Available |
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| Material: | PVC |
| Hardness: | Hard Tube |
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Our high-performance rigid polyvinyl chloride (PVC-O) water supply pipes are meticulously crafted from top-tier polyvinyl chloride polymer materials, enriched with essential additives to ensure unparalleled performance. With an impressive MRS ≥ 25Mpa, these pipes are expertly extruded and molded to achieve unmatched precision. As a trailblazing solution in the water supply industry, this innovation not only elevates the mechanical properties but also significantly enhances the durability of both the pipes and their connections, surpassing the capabilities of conventional PVC-U and PVC-M pipes.
The PVC-O water supply pipe features a groundbreaking molecular chain structure of polyvinyl chloride, providing extraordinary high strength and pressure endurance. With exceptional ring stiffness and resilience to both internal and external pressures, it is the perfect choice for pipe gallery installations. This pipe showcases remarkable toughness, a high modulus, minimal shrinkage, and over 45% ring flexibility, ensuring stellar impact resistance. It effectively manages material stress release due to temperature changes within the pipe gallery, incorporating built-in plastic inspection wells with outstanding high-pressure sealing to guarantee a leak-proof pipeline system. Its ease of installation and quick construction drastically cut down maintenance expenses, while offering a design life of over 50 years. This translates to a low investment yet incredibly cost-effective solution for all your water supply requirements.
| NO | item | technical specification |
| 1 | density (kg/m3) | 1350~1460 |
| 2 | Vicat softening temperature /ºC | ≥80 |
| 3 | Vertical retraction rate/ (%) | ≤5 |
| 4 | dipping test (15ºC,15min) | Surface change is not inferior to 4N |
| 5 | Drop weight impact test(0ºC)TIR/(%) | TIR≤5 |
| 6 | hydrostatic strength | No rupture, no leakage |
| 7 | Suitability (connection seal test, deflection test, negative pressure test) | No rupture, no leakage |
Trench Excavation Standards for PVC-O Water Supply Pipes and Optimal Backfill Soil Quality
1. Enforce trench excavation according to elite industry standards to guarantee exemplary results.
To prevent pipelines from being buried within permafrost, it's pivotal to determine trench excavation depth by thoroughly analyzing and synthesizing local geological data. This ensures proficient backfill processes, which are crucial for averting pipeline and interface cracking caused by bending stress. Key requirements include:
(1) Trenches must be impeccably straight, ensuring the bottom width exceeds the pipe's outer diameter by at least 0.5m, with a minimum total width of 0.7m to ensure exceptional stability.
(2) Meticulously maintain the correct bottom depth-balance is key; avoid excessive depth or shallowness. In areas with substantial gravel, backfill and compact according to specifications. Where hard soil or obstacles, like stones, are encountered, allow for slight trench curvatures to ease construction, ensuring curves are gentle and depth uniform to preclude pipe bending. Excessive water supply pressure may otherwise cause joint leakage or rupture.
2. Prevent foundation issues related to permafrost and potential trench settlement. During winter, ensure trenches rest on pristine soil or thoroughly compacted backfill. High soil moisture can lead to future permafrost melt and trench settlement, causing pipe sinking, bending, and joint breakage under stress. Minor issues may lead to joint separation and leaks, while severe cases can result in pipe rupture.
3. Adhere strictly to established regulations for winter pipeline bonding to ensure integrity.
PVC-O tube adhesive, mainly composed of PVC-O solvent, enhances bonding by applying adhesive to both the socket's inner and outer surfaces. This process expands or dissolves the PVC-O-polyurethane tube's surface, allowing extrusion pressure to seamlessly unite these surfaces upon socket insertion. The solvent's quick volatilization returns the dissolved surface to solid form, maintaining core strength and ensuring bonding strength meets pressure demands.
Exact adhesive application is crucial-not too scarce to compromise sealing and strength, nor too excessive, which could lead to flow along pipe walls, causing corrosion and softening. Overapplication can result in cracking under water or pressure. Cold conditions can slow adhesive volatilization, increasing penetration and weakening pipe walls.
Strictly follow specification requirements for pipe bonding construction. Ensure adhesive application results in minimal overflow during socket insertion, which must be promptly removed. Apply glue from the socket interior outward to avert unwanted interior pipe flow.
4. Considerations for Thermal Expansion and Contraction of Pipes
With a thermal expansion coefficient of 0.07mm (m · ºC), PVC-O water supply pipes exhibit greater expansion than traditional materials. It's vital to account for temperature-induced longitudinal deformation, particularly in systems using surface water sources.
Thanks to the versatile scalability of the rubber ring connecting pipe interface, expansion or contraction issues are easily mitigated. For bonded pipes-especially the open type-post-bonding rigidity means lacking flexibility. Installing expansion joints can counteract the immense pressure from expansion or contraction, safeguarding the pipe structure and fittings.
Discover a universe of connection possibilities with our pipes, offering the adaptability of solvent adhesive, elastic sealing ring, and integrated rubber ring connections. These pipes can seamlessly integrate with other varieties like cast iron pipes using flanges or compatible adapters, delivering a comprehensive solution for diverse piping needs.
Effortless Connection Program: Start with a meticulous cleaning of the working face ---- Follow with generous lubricant application ---- Conclude with precise counterpart insertion for optimal system performance.
1. Before installation, thoroughly verify the quality of pipes, fittings, and rubber rings. Confirm both the socket and its counterpart's working faces are immaculate and prepared for seamless assembly.
2. During installation, strategically position the socket towards the incoming water flow direction, enhancing the system's efficiency and reliability.
3. Liberally apply lubricant to ensure optimal performance, expertly coating both the rubber ring and the insertion section. It's crucial to use the right amount-neither too much nor too little-to ensure it doesn't seep into the socket groove. This careful application minimizes friction between the rubber ring and the groove wall, thereby effectively preventing any potential flipping or distortion of the rubber ring. For the best results, we strongly recommend using mild detergents or soapy water as lubricants, as they offer superior compatibility and ease of use.
4. With precision, align the socket ports meticulously, ensuring the pipeline axis remains perfectly straight. This precision alignment is essential for maintaining the stability and integrity of the entire structure, ensuring seamless and reliable performance over the long term.
5. Equip each side of the socket with the appropriate wire rope sleeves. Utilize a tightener (or hand wrench) to securely pull them into the reticle, ensuring a snug fit. For pipes with a medium caliber, place square wood at the port for additional support. Gently but firmly knock it into the socket with a mallet to achieve a perfect, precise fit that enhances the overall reliability and durability of the entire system.
1,What's your minimum order quantity?
Our minimum order quantity is usually 1 CTN.
2,How long is the delivery cycle?
The delivery time is approximately 15 - 20 days. (If the quantity is less than 10 cartons, it will take about 3 - 5 days.)
3,Where is the port of shipment?
We ship the goods via Tianjin Port.
4,What are your payment terms?
We accept 30% telegraphic transfer as advance payment, 70% payment during the shipment period or 100% letter of credit.
5,How can I contact you?
You can contact us through the trade manager or click on "Contact Supplier" at the bottom to send us an email.
6,Where is your company located?
Our company is located in Cangzhou, Hebei Province, China. You are very welcome to visit us if you'd like.
7,How about the samples?
We can send samples to you. Most samples can be sent to most parts of China for free. If they are sent to other countries, the transportation cost should be borne by your side.
8,Why choose us?
Our products are genuine, of high quality and with competitive prices.
We have cooperated with customers all over the world and have a good understanding of the market.
You will be very satisfied with our after-sales service.
Any questions and feedback will be replied to within a very short time.
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