| Customization: | Available |
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| Material: | PVC |
| Hardness: | Hard Tube |
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Introducing our top-of-the-line High-Performance Rigid Polyvinyl Chloride (PVC-UH) Water Supply Pipes, crafted from premium polyvinyl chloride polymer materials, enhanced with essential additives. These pipes boast an impressive MRS of ≥ 25Mpa, extruded and expertly molded to perfection. As a groundbreaking innovation in water supply infrastructure, this new generation pipe elevates mechanical properties and pipe connection reliability beyond the traditional PVC-U and PVC-M pipes.
Our PVC-UH water supply pipe showcases an advanced molecular chain structure enhancement in polyvinyl chloride, delivering superior strength, exceptional pressure tolerance, and remarkable ring stiffness. Engineered for excellence, it provides outstanding internal and external pressure resistance, making it ideal for pipe gallery installations. With superior toughness and a high modulus, it minimizes shrinkage and offers over 45% ring flexibility, excelling in impact resistance. Perfectly suited for mitigating material stress due to temperature fluctuations, it features built-in plastic inspection wells with exceptional high-pressure sealing capabilities, ensuring the integrity of the pipeline system. Experience the ease of installation, swift construction, and low maintenance costs, all with a design life exceeding 50 years. Enjoy the unparalleled low investment and high cost-effectiveness of our pipeline system.
| 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 |
PVC-UH Water Supply Pipe Trench Excavation Standards and Optimal Backfill Soil Quality Guide
1. Meticulous Trench Excavation Standards: Ensure Compliance for Optimal Results
To prevent the placement of pipelines in the permafrost layer, it is essential to determine the depth of trench excavation by thoroughly summarizing local climatic and geological data. Ensuring the backfill is performed accurately and tamped to prevent any pipeline or interface cracking due to bending stress is crucial. The following guidelines must also be adhered to:
(1) The trench must be precisely straight. The bottom width should exceed the pipe's outer diameter by at least 0.5 meters, with an overall minimum width of 0.7 meters for optimal installation.
(2) Exercise rigorous control over the trench depth, avoiding depths that are excessively deep or shallow. Should the gravel depth exceed specifications, it must be backfilled and compacted to the prescribed standard. In areas with hard soil or obstructions like stones, construction teams may inadvertently dig curved trenches, resulting in a small curvature radius or inconsistent trench depth. Such deviations can cause the pipe to bend post-installation, leading to stress on pipes, fittings, and joint sockets. Subsequent water pressure increases can induce joint leaks or even rupture pipes and fittings.
2. Safeguard Against Permafrost and Prevent Pipe Trench Settlement: During winter projects, it is imperative that the pipe trench base rests on undisturbed soil or densely compacted ground post-grooving. A foundation with high soil moisture risks thawing and settling when temperatures rise, potentially leading to pipe sinking, bending, or even joint fractures, which escalate stress. Minimal stress may merely pull apart a joint, causing leaks; significant stress could rupture pipes entirely.
3. Adhere to Winter Pipeline Bonding Regulations for Optimal Performance
The PVC-UH adhesive is primarily composed of a specialized solvent. Its bonding mechanism relies on applying adhesive to both the inner and outer surfaces of the socket, enabling surface expansion or dissolution. During socket insertion, these expanded surfaces merge securely under extrusion pressure. Following solvent volatilization, the bonding surface solidifies without compromising the substrate's integrity, ensuring the bonding strength meets necessary pressure requirements.
Proper adhesive application is crucial - too little fails to secure the seal or strength, while excess causes overflow, corroding and softening pipe walls, leading to potential cracking under water pressure. Low temperatures exacerbate risks by slowing adhesive volatilization, allowing deeper penetration and reducing wall strength.
Thus, adhere strictly to bonding specifications, ensuring a nominal adhesive amount slightly overflows the interface edge post-insertion. Clean any excess promptly with a cloth. When applying adhesive inside the socket, proceed from inner to outer edges to prevent internal overflow in pipes or fittings.
4. Managing Thermal Expansion and Contraction in Pipes
The PVC-UH pipe's thermal expansion coefficient is 0.07mm (m · ºC), surpassing that of conventional pipes. Particular attention is required for longitudinal deformation due to temperature variations, especially in systems utilizing surface water sources.
The remarkable scalability offered by our rubber ring connecting pipe interface ensures that issues related to expansion or contraction are virtually eliminated. However, when it comes to bonded pipes, particularly open pipes, the rigidity of the bonded interface presents a unique challenge-it lacks the flexibility to expand or contract. In the absence of an expansion joint, the substantial stress from thermal expansion or contraction can impact the integrity of the pipe or its fittings, leading to potential damage.
Our versatile pipe connection methods include solvent adhesive, elastic sealing ring, and the innovative integrated rubber ring connection. Moreover, these pipes can be seamlessly connected to a variety of other pipe types, such as robust cast iron pipes, through the use of flanges or other adaptive solutions, ensuring a versatile and adaptable installation.
Efficient Connection Protocol: Begin by thoroughly cleaning the working surface. Then, apply lubricant generously, ensuring a smooth counterpart insertion. This meticulous process guarantees an optimal and secure connection.
1. Prior to installation, conduct a meticulous inspection of pipes, fittings, and rubber rings. It is crucial to ensure that the working face of both the socket and socket is impeccably clean, paving the way for a flawless installation process.
2. During installation, it is standard practice for the socket to be oriented towards the direction of incoming water, optimizing flow and efficiency.
3. Adequately apply lubricant to both the rubber ring and insertion part. Precision in lubricant application prevents overflow into the socket groove, thereby minimizing friction and preventing the rubber ring from overturning. Utilize detergents or soapy water for optimal lubrication.
4. Ensure that the socket ports are precisely aligned and the pipeline axis remains perfectly straight, establishing a seamless connection.
5. Employ appropriate wire rope sleeves on either side of the socket, securing them into the reticle with a tightener or hand wrench. Medium-caliber pipes benefit from the use of square wood padding at the port, which can be gently knocked into the socket with a mallet for a snug 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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