| Customization: | Available |
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| Material: | PVC |
| Hardness: | Hard Tube |
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Introducing our state-of-the-art, high-performance rigid polyvinyl chloride (PVC-O) water supply pipes, meticulously engineered from premium-grade polyvinyl chloride polymer materials. These pipes are further enhanced with crucial additives to deliver superior performance. With a Minimum Required Strength (MRS) rating of ≥ 25Mpa, these pipes are expertly extruded and molded to achieve impeccable precision. As trailblazers in the domain of water supply pipes, our innovative solution significantly elevates the mechanical properties and durability, surpassing what traditional PVC-U and PVC-M pipes offer. Experience a revolution in water supply systems with our cutting-edge, robust, and durable piping solutions.
Our PVC-O water supply pipe is a marvel of advanced engineering, showcasing a sophisticated molecular chain structure of polyvinyl chloride that ensures unparalleled strength and pressure tolerance. With its exceptional ring stiffness and resilience against both internal and external pressures, this pipe is the perfect choice for pipe gallery installations. It exemplifies exceptional toughness, high modulus, minimal shrinkage, and boasts over 45% ring flexibility, providing outstanding impact resistance. Expertly designed to manage material stress release due to temperature fluctuations in pipe galleries, it features built-in plastic inspection wells with remarkable high-pressure sealing capability, ensuring a leak-proof pipeline system. The ease of installation and swift construction process dramatically cut down on maintenance expenses, while the design promises an impressive lifespan of over 50 years, offering a low-investment, highly 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. Trench excavation must adhere to the highest industry standards, ensuring a robust and durable pipeline installation that meets all regulatory requirements.
To expertly prevent pipelines from being laid within permafrost layers, it's vital to meticulously determine trench excavation depth by thoroughly analyzing and summarizing local geological data. This strategic approach ensures efficient backfill operations, which are crucial for averting pipeline and interface cracking due to potentially hazardous bending stress. Here are the key requirements for superior trench stability:
(1) Ensure trenches are impeccably straight, with a bottom width not less than the pipe's outer diameter plus 0.5m, achieving a total width no less than 0.7m to guarantee optimal stability and security.
(2) Maintain precise control over bottom depth-neither excessively deep nor disproportionately shallow. In cases where gravel depth is excessive, backfill and compact to specified standards. In areas facing hard soil or obstacles like stones, allow for slight trench curvature to facilitate construction. Ensure curves remain gentle with consistent depth to prevent pipe bending, which could lead to undue stress on the pipe, fittings, and joints. Increased water supply pressure may result in potential joint leakage or rupture if not properly managed.
2. Proactively avoid permafrost-related foundation issues and potential trench settlement. During winter, ensure that pipe trenches rest on either undisturbed soil or well-compacted backfilled ground. High soil moisture can cause future permafrost melt and trench settlement, leading to pipe sinking, bending, and joint breakage due to increased stress. While minor issues may cause joint separation and leaks, severe cases could lead to catastrophic ruptures.
3. Strictly observe established regulations for winter pipeline bonding to ensure safe and effective installation.
PVC-O tube adhesive, primarily composed of PVC-O solvent, operates by applying adhesive to the socket's inner and outer surfaces. This causes expansion or dissolution on the PVC-O-polyurethane tube's surface, allowing extrusion pressure to unite these surfaces effectively during socket insertion. The adhesive's solvent quickly volatilizes, restoring the dissolved surface to a solid state, ensuring that substrate strength and bonding strength meet rigorous pressure requirements.
Precisely control the quantity of adhesive applied-neither too scant to compromise sealing and strength, nor excessive, which may flow along pipe walls, leading to corrosion and softening. Overuse can result in cracking under pressure or water exposure. In cold conditions, slowed adhesive volatilization increases penetration, compromising pipe wall integrity.
Adhere strictly to specification requirements for bonding pipe construction. Ensure adhesive application results in minimal overflow when the socket is inserted, which should be promptly cleaned to maintain structural integrity. Apply glue from the socket interior outward to prevent unwanted flow into the pipe internals, ensuring a clean and efficient bond.
4. Critical 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. Consider temperature-induced longitudinal deformation, particularly in systems using surface water sources, to maintain system integrity.
Thanks to the versatile scalability of the rubber ring connecting pipe interface, issues of expansion or contraction are effortlessly mitigated. However, when dealing with bonded pipes-especially the open type-post-bonding, the interface becomes rigid, lacking flexibility. Without installing expansion joints, the immense pressure from expansion or contraction could severely compromise the pipe structure or fittings.
Explore an array of connection methods with our pipes, offering the flexibility of solvent adhesive, elastic sealing ring, and integrated rubber ring connections. Moreover, these pipes seamlessly connect to other varieties like cast iron pipes through flanges or other compatible adapters, providing a comprehensive solution for diverse piping needs.
Effortless Connection Program: Begin by meticulously cleaning the working face ---- Next, apply a lubricant generously ---- Finally, ensure a precise counterpart insertion for optimal performance, ensuring a flawless and effective connection every time.
1. Prior to installation, thoroughly verify the quality of pipes, fittings, and rubber rings. Ensure the working face of both the socket and its counterpart are immaculately clean and ready for seamless assembly.
2. During installation, strategically position the socket towards the incoming water flow direction, optimizing the system's efficiency and reliability for long-term performance.
3. Generously apply lubricant to both the rubber ring and the insertion section. Ensure the lubricant is used in moderation to prevent it from seeping into the socket groove. This precaution reduces the friction between the rubber ring and the groove wall, thus preventing any potential overturning of the rubber ring. We recommend using detergent and soapy water as lubricants for optimal results.
4. Carefully align the socket ports, ensuring that the pipeline axis remains perfectly straight, thus guaranteeing stability and structural integrity.
5. Equip both sides of the socket with appropriate wire rope sleeves and use a tightener (or hand wrench) to pull them securely into the reticle. For medium-caliber pipes, place square wood at the port and gently knock it into the socket with a mallet for a precise fit.
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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