HDPE S-trap with cleanout
These butt fusion drainage fittings are made from virgin HDPE, built strictly for gravity flow drainage and stormwater pipeline systems. The fusion process is straightforward, really. Trim and clean the pipe and fitting ends flat, heat both contact surfaces evenly to the right melting temperature, press them together firm and steady, then leave the joint to cool fully with no disturbance.
Once cooled completely, it forms a dense, molecular-level permanent seal. No leaks, plain and simple - this is steady, long-term stability you can rely on for buried drainage work. No adhesives, no rubber gaskets, no extra hardware needed, just a tight, solid connection that holds up through constant flow and outdoor weather.
Each fitting comes with a solid one-piece body, no thin seams or fragile spots, built with tough, wear-resistant materials. The inner wall is ultra-smooth, no burrs or rough patches, designed to stop clogs and keep water moving freely without buildup.

Product Advantages
Superior Connection Performance
Since we use the same virgin HDPE as standard drainage pipes, the connection is fully homogeneous. No gaps, no leaks - just a solid, tight join that won't fail easily. The fused joint is nearly as strong as the pipe itself, with good resistance to soil pressure, compression and minor ground movement.
It handles temperature shifts and thermal expansion well, too, so you won't have to worry about loose joints or cracks down the line. That's the kind of reliability that matters most for buried drainage, in our experience.
Easy & Efficient Construction
Installation couldn't be simpler, honestly. Just prep the ends, align the pipe and fitting straight, heat and press as directed, then let it cool - no need for big workspaces, no heavy, complicated tools.
Standard fusion parameters make the process easy to follow, so even less experienced on-site workers can get a good joint. They're perfect for narrow trenches, sloped drainage layouts and outdoor job sites, and best of all? No open flame. Safe and clean to use, no toxic fumes, which is always a big plus.
Durable & Cost-Effective
HDPE is tough - really tough, especially for drainage use. It resists corrosion, rot, soil chemicals and slow aging, so these fittings can last up to 50 years with proper installation. The smooth inner wall cuts down fluid resistance and stops scaling or sediment traps, keeping lines efficient for years.
And once installed right, the joints are fully maintenance-free - no regular checks, no repairs needed. Saves you plenty of time and money in the long run, which is always a win for any project.
Wide Application Range
These fittings work with standard HDPE drainage pipes, the most common choice for daily drainage jobs we see with customers. They're versatile enough for all kinds of work: municipal stormwater systems, residential sewer lines, landscape drainage, agricultural field runoff and commercial site drainage.
No matter the layout - buried, sloped or long-distance - these fittings fit and perform reliably.
Specifications & Types
We offer common sizes for regular drainage projects, covering most standard pipe diameters. If you need custom sizes outside our regular range, we can make them to fit your project - just let us know what you need.
We have all the types you'll need: couplers, 45° elbows, 90° elbows, tees, reducers, caps, saddles - you name it. No matter how your drainage pipeline is laid out, we've got a fitting that works. No need to shop around for different parts from different suppliers.
We take pride in these butt fusion drainage fittings - each one goes through strict quality checks before shipping, so you know you're getting a solid, reliable product. We also offer steady after-sales support, just in case you need help on site. Need a custom solution? We can do that too, no problem. Just reach out, and we'll help you sort it out.
Raw Material
Qingdao Polyfusion Machinery Co., Ltd. holds that high-performance raw materials are the fundamental prerequisite for manufacturing top-tier HDPE piping systems. In the production of all our HDPE pipes and fittings, we have always adhered to the strict standard of selecting premium raw materials from well-known manufacturers around the world. These raw materials we adopt have been widely recognized as the high-grade base materials for HDPE pipe fitting production by professionals in the plastic piping industry.
The outstanding performance and ultra-stable physical and chemical properties of these raw materials are the core driving force for our products to maintain excellent quality. It is precisely relying on the superior quality of these raw materials that our HDPE pipes and fittings have firmly established a high-quality market position in the industry, and can consistently provide our cooperative partners with reliable and high-standard piping product solutions.








Packaging & Shipping

We adopt high-strength, shock-resistant, pressure-proof and wear-resistant packaging materials, and implement classified fixed packaging for different sizes and types of fittings to avoid collision, scratch and deformation during long-distance transportation and multiple handling. All packages are clearly marked with detailed product information, batch numbers, loading and unloading notes and shipping marks, which greatly facilitates your warehousing, sorting and subsequent construction use.

We regard professional packaging as an indispensable part of product quality assurance and international delivery service. For all our HDPE pipes and fittings, we have developed customized packaging solutions tailored to product specifications, shipping modes and regional transportation requirements, fully meeting international shipping standards for sea, land and air freight.

With rigorous packaging processes and strict quality control of each packaging link, we ensure that every batch of HDPE pipe fittings is delivered to customers around the world in a perfectly intact condition. Our packaging system not only effectively isolates all kinds of transportation risks, but also optimizes the packaging volume to improve loading efficiency and save your transportation costs to the greatest extent, creating more practical value for global cooperative partners.
Quality Assurance
Qingdao Polyfusion Machinery Co., Ltd. boasts a comprehensive portfolio of authoritative certifications and approvals including ISO9001, CE, WRAS, BV, SGS and CNAS, a solid testament to our stringent quality control system and professional manufacturing capabilities. We have forged our core competitive edges in the market with premium product quality, professional and efficient one-stop service, and highly competitive pricing. Taking maximizing customer benefits as our unwavering core goal, we regard product quality as the cornerstone of the company's sustainable development and lifeblood of our brand. After years of deep cultivation and steady development in the industry, we have built a stable and high-quality global partnership network, and our cooperative relations with partners worldwide have been continuously consolidated and deepened with excellent strength and reliable reputation.

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