Innovative Double Wall Bellows for Enhanced Stormwater Drainage

• Customization: Available
• Material: PE
• Hardness: Hard Tube
• Model NO.: DN20-DN3000
• Type: Thermosetting Plastic Pipe
• Hollow: Hollow
• Shape: Round
• Usage: Drainpipe, Water Supply Pipe, Threading Pipe, Wire and Cable Pipe, Agricultural Irrigation Pipe, Corrugated Pipe
• Tensile Strength: 41~50MPa
• Material Grade: 100% New Material PE100
• Certificate: CE, SGS, ISO, CNAS, IAF
• Characteristic: Good Flexibility, Corrosion Resistance, Excellent
• Connection: Butt Fusion/Socket Fusion/Electro Fusion/Flange Jo
• Wall Thickness: SDR9 - SDR27
• Oven Experiment: No Bubbles, No Delamination, No Cracking
• Transport Package: Standard Export Packing
• Specification: DN20mm-DN3000mm
• Trademark: Wilvida
• Origin: Jiangsu, China
• HS Code: 3917210000
• Production Capacity: 500, 000t/Year

Product Description

Product Description

Introducing the cutting-edge Double-Wall Corrugated Pipe, a revolutionary innovation in lightweight piping, crafted meticulously from high-density polyethylene! This marvel boasts an array of outstanding features: exceptional lightness, unparalleled pressure resistance, and remarkable flexibility—ensuring swift and effortless installation. With an extraordinarily enduring lifespan, this pipe's ingenious wall structure design not only elevates performance but also slashes costs significantly compared to traditional pipe structures. Its seamless and secure connectivity has garnered widespread acclaim and adoption both domestically and internationally, effectively replacing conventional concrete and cast iron pipes.

Detailed Photos

Product Parameters

HDPE Double Wall Corrugated Pipe's Parameter Datas
Norminal            Inner Diameter (DN/IN)	Min.Average Inner Diameter	Min. Wall  Thickness of theInside Layer	Min. Wall Thickness of the Inside Layer under a Hollow Section	Min. Wall Thickness of theOutside Layer under a HollowSection	Min.Length of Engagement of Socket
DN/IN	dem.min	e.min	e1.min	e3.min	A.min
100	95	1	0.8	0.7	32
150	145	1.3	1	0.8	43
200	195	1.5	1.1	0.9	54
225	220	1.7	1.4	0.9	55
250	245	1.8	1.5	1	59
300	294	2	1.7	1	64
400	392	2	1.7	1	64
500	490	3	3	1.8	85
600	588	3.5	3.5	2.7	118
1000	985	5	5	3	140
Note:
1: The pipe wall thickness is base on the GB/T19472.1-2019 or specified EN/ISO standards
2: Nominal pressure based on water medium temperature ≤20ºC. It should be adjust when the temperature of the medium change.
3: Colour of the pipe is BLUE ,others should be negotiate.
4: Application:water,Corrosive liquid,pulp.

Certifications

Packaging & Shipping

Installation Instructions

The connection methods for HDPE double-wall bellows, along with b and c tubes, include an array of mechanical connections and a suite of sophisticated thermal fusion procedures. The primary techniques encompass butt fusion, electrical fusion, socket fusion, flange adapter connections, and compression connections.

1. The pipeline should be securely based on a stable earth arc. For soils of a general nature, lay a 100mm layer of medium coarse sand as a base on either undisturbed soil or a compacted backfill foundation beneath the pipe. In cases of poor soil quality, opt for a sand gravel base layer no thinner than 200mm. It can be structured in two layers: the lower composed of 5~32mm gravel, with a thickness of 100~150mm, and the upper consisting of coarse sand, not less than 50mm thick. Ensure the base density aligns with Table 2's standards. For soft soil foundations that fail to meet design requirements or are compromised by construction activities, fortify the foundation first. Once it achieves the specified bearing capacity, proceed with laying the medium coarse sand foundation layer.

2. Within the supporting angle range of the pipeline’s designed earth arc foundation, the axillary corner must be backfilled with medium coarse sand or gravel soil. The backfilling range should extend beyond the supporting angle 2α by at least 30 degrees. Ensure the backfill compactness adheres to technical regulations for superior stability.

3. As you lay the pipeline, dig grooves corresponding to the socket interface and sleeve connection size in the foundation. Tailor the groove's length, width, and depth to accommodate the pipe joint dimensions. After securing the joint, immediately backfill the area with medium coarse sand to ensure optimal density and support.

4. In sections where potential longitudinal uneven settlement of the pipeline might occur—due to factors like pipeline load or soil changes—reinforce the foundation before laying the pipeline to ensure lasting durability and stability.
For treating foundations of polyethylene drainage pipes, employ composite methods such as sand piles or stone piles. Avoid rigid foundation treatments like driven piles, concrete pads, or concrete strip foundations to maintain flexibility and integrity.

Company Profile

Founded in the storied and culturally vibrant city of Yangzhou, China, in 2018, Yangzhou Huawei Pipe Technology Co., Ltd. has rapidly emerged as a distinguished leader in the realm of intelligent pipeline system solutions. Driven by an unyielding dedication, our mission is to provide comprehensive, cutting-edge solutions that adeptly address the diverse and ever-changing demands of our valued global clientele.
Our extensive and versatile product line includes HDPE, PVC, PP-R, MPP, and more, each meticulously crafted to meet a vast array of applications. From construction engineering and municipal projects to agricultural drainage and irrigation, gas transportation, home renovation, and power cable sheathing, our impressive catalogue boasts nearly 3000 distinct varieties and specifications. With offerings that span the entire spectrum of pipes, fittings, and valve products, we ensure a solution for every conceivable piping need.

Our Advantages
Committed to excellence in global trade, we offer bespoke services to pipeline dealers around the globe. In support of this pledge, we have made substantial investments in cutting-edge mechanical equipment, laying the groundwork for a modern, high-capacity factory. Our robust production capabilities empower us to achieve an annual output of 30,000 tons, sufficient to fill 3,000 containers, thereby meeting the escalating demands of our international clientele with ease.
By leveraging our state-of-the-art machinery and implementing an exceptional management system, we effectively reduce costs, accelerate delivery timelines, and uphold the pinnacle of quality in every product we manufacture.

FAQ

Are you a trading company or a factory?

We are a distinguished manufacturer, and we warmly welcome you to visit our state-of-the-art factory at your convenience.

What is your delivery time?

For small quantities, we utilize international couriers (DHL, FedEx, TNT, etc.) or air freight, ensuring you receive the goods within 3-5 days post-dispatch. For larger orders, we ship by sea, and the delivery time varies from days to weeks, depending on your destination port.

Can you provide samples?

Absolutely, samples are available. For standard products, samples are complimentary; you only need to cover the shipping costs. For high-value items, both the product cost and shipping are required. However, once we establish a solid partnership or if you become a VIP customer, complimentary samples will be provided.

Do you offer OEM services?

Yes, we provide customized OEM services tailored to your specifications, including LOGO and packaging.

What are your terms of payment?

We accept T/T or L/C at sight. For T/T, a 30% advance payment is required, with the balance due before shipment or via L/C.

What is your Minimum Order Quantity (MOQ)?

Our MOQ is flexible and can be adjusted according to the customer's requests.

Can we use our own label or packaging?

Absolutely. We are happy to accommodate your label or packaging requirements.

How can you ensure the quality of your products?

Integrity and responsibility are the cornerstones of our company. All products we supply are thoroughly tested and qualified. We provide a Certificate of Analysis (COA) before delivery to ensure quality.