| Customization: | Available |
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| Material: | PVC |
| Hardness: | Hard Tube |
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Experience the future of water supply technology with our high-performance rigid polyvinyl chloride (PVC-UH) pipes! Crafted from advanced polyvinyl chloride polymer materials and enhanced with essential additives, our pipes boast an impressive MRS ≥ 25Mpa, ensuring durability and reliability. This revolutionary water supply solution elevates the mechanical prowess of traditional PVC-U and PVC-M pipes, offering superior product strength and enhanced pipe connections.
Our cutting-edge PVC-UH water supply pipes stand as a testament to innovation, featuring a redefined molecular chain structure for exceptional attributes. These pipes deliver unparalleled strength, withstanding high pressures and demonstrating remarkable ring stiffness. Designed for seamless pipe gallery installations, they offer superb internal and external pressure resilience, matched with outstanding toughness and a high modulus. With minimal shrinkage and over 45% ring flexibility, they excel in impact resistance, adeptly handling temperature-induced material stress within pipe galleries. The incorporation of built-in plastic inspection wells enhances high-pressure sealing, guaranteeing a secure pipeline system. Enjoy the ease of installation and rapid construction, coupled with low maintenance costs. With a pipeline system design life exceeding 50 years, our PVC-UH pipes promise a low-investment, high cost-effectiveness solution for your water supply needs.
| 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 & Backfill Soil Quality
1. For optimal trench construction, adhere to these standards:
To ensure our Premium Quality Blue Pipe steers clear of permafrost layers, trench excavation depth must be meticulously determined following a comprehensive review of local geological data. Proper backfill practices are critical, ensuring that the fill material can be appropriately compacted to prevent detrimental bending stress that could compromise the integrity of the pipelines and connections. Therefore, it is imperative that:
(1) The trench maintains a straight trajectory. The trench bottom width should surpass the pipe's outer diameter by at least 0.5m, with an overall minimum width of 0.7m.
(2) The trench groove depth must be precisely managed to prevent excess or insufficient depth. Overly deep gravel areas necessitate backfilling and compacting to meet depth specifications. Encountering hard soil or obstacles-such as stones-may tempt laborers to curve the trench or reduce radius, which can threaten proper depth adherence. These misalignments potentially cause post-installation pipe bending, subjecting pipes, fittings, and joint sockets to undue bending stress. A rise in water pressure can further exacerbate joint leakage or trigger rupture in pipes and fittings.
2. Safeguard against permafrost foundation issues and avert pipe trench settlement. During winter projects, confirm that the pipe trench base rests on untouched soil or solid ground post-backfill. If high soil moisture is present and compaction is inadequate, the thaw of permafrost as temperatures rise will lead to trench foundation sinking. This may cause pipes to sag and joints to fail, leading to leaks or, in severe cases, pipe rupture.
3. Winter Pipeline Bonding: Strict Adherence to Standards
Our PVC-UH tube adhesive, primarily made of PVC-UH solvent, functions by coating the socket's inner and outer surfaces, expanding or dissolving their surfaces. When both surfaces are inserted together, the bonding process solidifies as the adhesive volatilizes, forming a strong, enduring joint that meets pressure requirements.
Proper adhesive application is crucial: insufficient amounts fail to ensure strength or seal integrity, while excess adhesive can lead to corrosion or softening of the pipe walls, posing a risk of cracks under water or pressure. Cold conditions slow the adhesive volatilization process, causing deeper wall penetration and significant strength reduction.
Hence, bonding must comply with strict specifications. The adhesive should just overflow at the joint edge upon socket insertion, and any excess should be promptly wiped clean. When applying within the socket, start from the interior and move outward, preventing adhesive intrusion into the pipe's inner surfaces.
4. Managing Thermal Expansion and Contraction in Pipes
Given the PVC-UH water supply pipe's thermal expansion coefficient of 0.07mm (m · ºC), greater than traditional pipes, manage longitudinal expansion due to temperature variances carefully. This is especially crucial for systems using surface water, as they are more susceptible to temperature-induced deformation.
The resilient nature of the rubber ring connecting pipe interface ensures seamless scalability, making it a non-issue. However, bonded pipes, particularly open ones, present a different scenario. Once bonded, these interfaces become rigid, unable to accommodate expansion or contraction. Without an expansion joint, significant stress from thermal changes will directly impact the pipe or fitting, risking structural integrity.
Pipe connection methods include solvent adhesive bonds, elastic sealing rings, and integrated rubber ring systems. Moreover, versatility is key, as these pipes can also be connected to other types such as cast iron pipes via flanges or compatible adapters, offering a robust and flexible solution for diverse applications.
Connection Program: Ensure a pristine working surface ----- Apply lubricant generously ----- Align and insert with precision
1. Pre-installation protocol: Conduct a thorough inspection of pipes, fittings, and rubber rings. Ensure all surfaces, including the socket and its counterpart, are meticulously cleaned.
2. Installation orientation: Position the socket to face the incoming water flow, optimizing the operational efficiency of the system.
3. Lubrication Guidance: Apply lubricant meticulously to both the rubber ring and insertion component. Balance is crucial; ensure enough to facilitate smooth insertion but not excess that may cause the lubricant to seep into the socket groove, reducing friction and risking the rubber ring's stability. Recommended lubricants include detergent and soapy water for optimal performance.
4. Precision Alignment: Perfectly align the socket ports, ensuring the pipeline axis remains uncompromisingly straight, facilitating a seamless connection.
5. Secure Connection: Employ suitable wire rope sleeves on either side of the socket. Utilize a tightener or hand wrench to pull them snugly into the reticle. For medium-caliber pipes, consider padding the port with square wood and gently drive the pipe into the socket using a mallet, ensuring a firm and secure 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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