HDPE PE High-Density Polyethylene Double Wall Bellows for Stormwater Drainage Ventilation

Product Description

Product Description
Double-wall corrugated pipe is a new type of lightweight pipe made of high-density polyethylene. It has the characteristics of light weight, high pressure resistance, good toughness, fast construction and long life, etc. Its excellent wall structure design greatly reduces the cost compared with pipes of other structures. And because the connection is convenient and reliable, it has been widely used at home and abroad. Lots of replacement concrete pipe and cast iron pipe.
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 modes of HDPE double-wall bellows and b and c tubes include mechanical connection and a series of thermal fusion procedures, the main modes are butt fusion, electrical fusion, socket fusion, flange adapter connection and compression connection.
1. The pipeline shall be based on earth arc. For general soil quality, a layer of medium coarse sand base layer with a thickness of 100mm should be laid on the undisturbed soil foundation or the foundation with backfill compaction below the bottom of the pipe; When the soil quality of the foundation is poor, the sand gravel base layer with a thickness of not less than 200mm can be used, and it can also be laid in two layers, the lower layer is made of gravel with a particle size of 5~32mm, the thickness of 100~150mm, and the upper layer is coarse sand with a thickness of not less than 50mm. The base density shall comply with the provisions of Table 2. For soft soil foundation, when the bearing capacity of the foundation is less than the design requirements or due to construction precipitation and other reasons, the original soil of the foundation is disturbed and the bearing capacity of the foundation is affected by the surface, the foundation must be strengthened first. After the specified bearing capacity of the foundation is reached, the medium coarse sand foundation layer is laid.
2.The axillary corner within the range of supporting Angle of the designed earth arc foundation of the pipeline must be backfilled with medium coarse sand or gravel soil. The backfilling range shall not be less than the supporting Angle 2α plus 30, and the backfilling compactness shall comply with the provisions of the technical regulations.
3.The grooves in the socket interface and sleeve connection in the pipeline foundation should be dug along with the laying of the pipeline. The length, width and depth of the groove can be determined according to the pipe joint size. After the joint is completed, the density should be backfilled with medium coarse sand immediately.
4. For the section where the longitudinal uneven settlement of the pipeline may occur due to factors such as pipeline load and ground soil change, the foundation should be reinforced before the pipeline is laid.
Sand pile, stone pile and other composite foundation treatment methods should be adopted for the foundation treatment of polyethylene drainage pipe. Rigid foundation treatment measures such as driven pile, concrete pad and concrete strip foundation shall not be adopted. Company Profile
Founded in the historic and culturally rich city of Yangzhou, China, in 2018, Yangzhou Huawei Pipe Technology Co., Ltd. has swiftly ascended as a preeminent leader in intelligent pipeline system solutions. Our unwavering mission is to deliver comprehensive, state-of-the-art solutions that cater to the diverse and evolving needs of our esteemed global clientele.
Our extensive and versatile product line includes HDPE, PVC, PP-R, MPP, and more, meticulously designed to cater to a multitude of applications. These range from construction engineering and municipal projects to agricultural drainage and irrigation, gas transportation, home renovation, and power cable sheathing. With an impressive catalogue boasting nearly 3000 distinct varieties and specifications, our offerings cover the entire spectrum of pipes, fittings, and valve products, ensuring a solution for every piping requirement.
Our Advantages
Dedicated to global trade excellence, we offer tailored services to pipeline dealers across the world. To support this commitment, we have heavily invested in cutting-edge mechanical equipment, setting the foundation for a modern, high-capacity factory. Our robust production capabilities allow us to achieve an annual output of 30,000 tons, sufficient to fill 3,000 containers, ensuring we meet the growing demands of our international clientele.
By harnessing our advanced machinery and implementing an exceptional management system, we effectively minimize costs, expedite delivery times, and ensure the highest standards 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.

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