| 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 engineered from premium polyvinyl chloride polymer materials. These are fortified with vital additives to deliver extraordinary, long-lasting performance. With a Minimum Required Strength (MRS) of at least 25Mpa, these pipes are skillfully extruded and molded to precision. As a trailblazing innovation in the water supply pipe industry, this cutting-edge solution significantly enhances the mechanical properties and bolsters 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, with its sophisticated molecular chain structure of polyvinyl chloride, offers unparalleled high strength and pressure resistance. Its exceptional ring stiffness, coupled with resilience to both internal and external pressures, makes it an outstanding choice for pipe gallery installations. This pipe is designed with remarkable toughness, a high modulus, minimal shrinkage, and over 45% ring flexibility, ensuring superb impact resistance. It expertly manages material stress release due to temperature fluctuations within the pipe gallery. Featuring built-in plastic inspection wells with superior high-pressure sealing capabilities, it guarantees a leak-free pipeline system. Its straightforward installation and expedited construction time significantly slash maintenance expenses, coupled with a design life that exceeds 50 years. This translates into 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. To guarantee utmost success, trench excavation must meticulously align with the highest industry benchmarks.
For superior pipeline integrity, avoid laying pipes within permafrost. Carefully determine trench depth by analyzing local geological insights. This approach streamlines backfill operations, crucial for averting pipeline and interface fractures from bending stress. Key stipulations include:
(1) Precision in trench alignment is paramount. Ensure the bottom width exceeds the pipe's outer diameter by at least 0.5m, with an overall minimum width of 0.7m, fostering stability and longevity.
(2) Maintain exact bottom depth - avoid excessive depth or shallowness. If gravel is too deep, compact backfill to specified levels. In challenging terrains, such as hard soil or obstacles like rocks, trenches may gently curve to aid construction. Curves must be smooth and depth consistent to prevent pipe bending, which imposes undue stress on pipes, fittings, and joints. Increased water supply pressure can lead to joint leaks or ruptures.
2. Mitigate permafrost-related foundation challenges and trench settlement potential. During winter, ensure trenches rest on untouched soil or well-compacted backfill. High soil moisture might trigger permafrost melting and trench settling, causing pipes to sink, bend, or joints to break amid heightened stress. Minor problems may yield joint separations and leaks, while severe cases can result in ruptures.
3. Winter pipeline bonding should rigorously adhere to set regulations.
PVC-O tube adhesive is predominantly PVC-O solvent-based, working by applying adhesive to both socket surfaces. This induces expansion or dissolution on the PVC-O-polyurethane tube's surface, allowing pressure to unite these surfaces during socket insertion. As the adhesive solvent volatilizes easily, the previously dissolved surface reverts to solidity, ensuring substrate strength and the bond meets pressure demands.
Precision in adhesive quantity is key - avoid insufficient amounts that could undermine sealing and strength, and refrain from overuse, which might flow along the pipe walls, leading to corrosion and softening. Excessive use risks cracking under water or pressure. In colder environments, slower adhesive volatilization heightens penetration, weakening the pipe wall.
Strict adherence to bonding specifications is vital during pipe construction. Ensure adhesive is applied resulting in minimal overflow during socket insertion, which should be cleaned immediately. Apply adhesive from inside the socket outward, preventing any undesired flow into the pipe interiors.
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 compared to traditional materials. Be mindful of temperature-induced longitudinal deformation, especially in systems utilizing surface water.
The versatile adaptability of rubber ring pipe interfaces effectively resolves expansion or contraction challenges. However, for bonded pipes, particularly open types, post-bonding renders interfaces rigid, lacking flexibility. Without expansion joints, significant pressure from expansion or contraction could drastically impact pipe structures or fittings.
Unlock a realm of connection possibilities with our pipes, offering solvent adhesive, elastic sealing ring, and cohesive rubber ring links. They seamlessly connect to various pipes like cast iron via flanges or suitable adapters, providing a holistic solution for diverse piping needs.
Effortless Connection Program: Start with a meticulous cleaning of the working surface ---- Apply a generous layer of lubricant ---- Ensure precise counterpart insertion for superior performance.
1. Prior to installation, carefully verify the quality of pipes, fittings, and rubber rings. Ensure the socket and counterpart working surfaces are pristine, facilitating a seamless assembly.
2. During installation, orient the socket towards the incoming water flow direction to maximize system efficiency and dependability.
3. Apply a generous amount of high-quality lubricant to the rubber ring as well as the insertion section. Ensure moderation in the application to prevent any excess lubricant from seeping into the socket groove, which could compromise the installation. This step is essential to minimize friction between the rubber ring and the groove wall, preventing any potential overturning of the rubber ring during assembly. For optimal performance, we recommend using a combination of detergent and soapy water as lubricants.
4. With meticulous precision, align the socket ports to ensure the pipeline axis remains perfectly straight. This careful alignment is crucial in maintaining the stability and structural integrity of the entire assembly.
5. Securely equip both sides of the socket with durable wire rope sleeves and utilize a tightener (or hand wrench) to meticulously pull them into the reticle for a secure fit. When dealing with medium-caliber pipes, strategically place square wood at the port and gently tap it into the socket using a mallet, ensuring an accurate and 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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