HDPE End Cap
Contact Us
- +86 15093100892
- inquiry@phtopindustry.com
- No.86 Jingsan Rd, Jinshui District, Zhengzhou City 45000, china
product category
Butt Fusion HDPE End Cap is a high-density polyethylene (HDPE) pipe end closure using hot-melt butt welding technology, which is specially used for the end sealing of HDPE pipeline systems. The product is fused with the pipe end face through high-temperature heating to form a permanent, leak-free closed structure, which is suitable for pipeline terminal protection in the fields of municipal water supply and drainage, petrochemical, gas transmission, and farmland irrigation.
Core advantages
1. Permanent sealing
Adopting hot-melt butt welding technology, it is integrated with the pipeline, and the sealing performance far exceeds the flange cover or mechanical head, completely eliminating the risk of leakage.
2. Super corrosion resistance
HDPE material can resist acid, alkali, salt spray and chemical medium corrosion, and is suitable for harsh environments such as sewage treatment and chemical pipelines.
3. High pressure bearing capacity
Supports PN0.6MPa~PN1.6MPa pressure level, passes the hydrostatic test (GB/T 6111), and meets the needs of high-pressure pipelines.
4. Long life design
Anti-ultraviolet and anti-aging, the underground buried life can reach more than 50 years without maintenance.
5. Lightweight and environmentally friendly
The weight is only 1/10 of the metal end cap, and it is easy to transport and install; the material is 100% recyclable and meets green engineering standards.
Application scenarios
Municipal engineering: sealing the end of water supply and drainage pipelines, and sealing the pipe openings of inspection wells.
Petrochemical: safe terminal protection of oil/chemical medium pipelines.
Gas system: end sealing of medium and low pressure gas pipelines.
Agricultural irrigation: terminal protection of the main pipeline of the drip irrigation system.
Temporary blocking: temporary blocking during pipeline maintenance or segmented pressure testing.
Construction Guide
Pretreatment: Cut the pipe end face and mill it flat to ensure that there is no oil stain or burr.
Heating and welding: Use HDPE Buttfusion Welding Machine to heat the end cap and the pipe end to a molten state (210±10℃).
Butt pressurization: Quickly align and apply constant pressure (refer to GB/T 19809).
Cooling inspection: After natural cooling, check whether the welding circle is uniform and full.
Quality Commitment
Raw materials have passed GB/T 17219 drinking water hygiene safety certification.
Welding strength ≥ pipe body strength (GB/T 19809 test meets the standard).
Provide third-party test report and ISO 9001 quality system certification.
Specification
| dn | L | H | e | e | e |
| size(dn) | mm | mm | SDR17 | SDR13.6 | SDR11 |
| 75 | 45 | 35 | 6.8 | ||
| 90 | 70 | 60 | 8.2 | ||
| 110 | 70 | 55 | 10.0 | ||
| 125 | 60 | 48 | 9.2 | 11.4 | |
| 140 | 85 | 70 | 10.3 | 12.7 | |
| 160 | 85 | 70 | 11.8 | 14.6 | |
| 180 | 105 | 90 | 13.3 | 16.4 | |
| 200 | 90 | 75 | 14.7 | 18.2 | |
| 225 | 130 | 115 | 16.6 | 20.5 | |
| 250 | 95 | 85 | 18.4 | 22.7 | |
| 280 | 140 | 120 | 20.6 | 25.4 | |
| 315 | 115 | 90 | 23.2 | 28.6 | |
| 355 | 140 | 115 | 21.1 | 32.2 | |
| 400 | 130 | 100 | 23.7 | 36.3 | |
| 450 | 140 | 115 | 26.7 | 40.9 | |
| 500 | 140 | 115 | 29.7 | 45.4 | |
| 560 | 150 | 115 | 33.2 | 50.8 | |
| 630 | 150 | 115 | 37.4 | 57.2 | |
| 710 | 160 | 125 | 42.1 | 64.5 | |
| 800 | 160 | 125 | 47.4 | 72.6 | |
| 900 | 160 | 125 | 53.3 | 81.7 | |
| 1000 | 160 | 125 | 59.3 | 90.2 | |
| 1200 | 200 | 155 | 71.1 | 109.09 |
The electrofusion HDPE end cap is a high-density polyethylene pipe end seal that uses electrofusion connection technology and is designed for the terminal closure of HDPE pipeline systems. This product has a built-in high-performance heating wire and achieves perfect integration with the pipeline through intelligent electrofusion welding to form a permanent sealing structure. It is widely used in pipeline terminal protection in the fields of municipal, gas, and chemical industries.
Electrofusion HDPE end cap advantages
1. Intelligent welding technology
Adopting advanced electric fusion connection system, built-in high-precision temperature control chip
Automatically matching welding parameters to ensure stable and reliable welding quality
The entire welding process can be monitored and data can be traced
2. Excellent sealing performance
Molecular fusion of welding interface, sealing is better than traditional mechanical seals
Passed 1.5 times working pressure test, zero leakage guarantee
Adapt to thermal expansion and contraction of pipelines, no deformation after long-term use
3. Efficient construction plan
No need for professional welders, ordinary workers can operate after simple training
Single-point connection time only takes 15-30 minutes
Can adapt to humid, narrow and other complex construction environments
4. Super strong environmental adaptability
Working temperature range: -40℃ to +60℃
Acid and alkali resistant, corrosion resistant, PH value adaptation range 2-12
UV-resistant design, no aging when used outdoors
Application areas
Municipal engineering: terminal sealing of water supply and drainage network
Gas system: end closure of medium and low pressure gas pipelines
Industrial pipeline: terminal protection of chemical fluid delivery system
Agricultural irrigation: pipe end treatment of large irrigation system
Emergency repair: temporary blocking and repair of pipelines
HDPE Electrofusion End Cap (2)
Construction process
Surface treatment: use a special scraper to remove the oxide layer of the pipeline
Assembly positioning: ensure that the coaxiality between the end cap and the pipeline is ≤1%
Welding preparation: connect HDPE ElectroFusion Welding Machine, scan the code to read the parameters
Automatic welding: the equipment automatically completes the heating and welding process
Cooling test: air tightness test after natural cooling for 30 minutes
Quality assurance
Passed ISO 9001 quality management system certification
Complies with GB/T 17219 drinking water hygiene standards
Each batch of products comes with a factory test report
Specification
| dn | D | L1 | L | SDR |
| Size(mm) | mm | mm | mm | |
| 63 | 80 | 70 | 88 | SDR11 |
| 75 | 95 | 83 | 92 | SDR11 |
| 90 | 112 | 78 | 105 | SDR11 |
| 110 | 136 | 90 | 112 | SDR11 |
| 160 | 194 | 105 | 135 | SDR11 |
| 200 | 240 | 110 | 145 | SDR11 |
| 250 | 299 | 125 | 170 | SDR11 |
| 315 | 377 | 130 | 185 | SDR11 |
What is a HDPE cap?
HDPE cap is a pipe or container seal made of high-density polyethylene (HDPE) material, mainly used to close the open ends of pipelines, inspection wells, storage tanks and other facilities to prevent medium leakage, foreign matter intrusion or external environmental corrosion.
Classification of HDPE caps
Depending on the connection method and purpose, HDPE caps are mainly divided into the following types:
| Type | Features | Application Scenarios |
| Electrofusion HDPE Cap | Embedded heating wire, fused with pipe via electric heating, strong sealing | Gas pipelines, water supply and drainage, chemical pipelines |
| Butt Fusion HDPE Cap | Fused using butt fusion welding machine, suitable for large diameters | Municipal drainage, industrial pipelines |
How to choose suitable HDPE cap?
| Selection Criteria | Recommended Type |
| Permanent sealing required | Electrofusion Cap / Butt Fusion Cap |
| Removable required | Mechanical Cap / Flange Cap |
| Large diameter pipe (DN ≥ 400) | Butt Fusion Cap |
| Small diameter pipe (DN ≤ 315) | Electrofusion Cap |
| Temporary sealing | Mechanical Quick-Sealing Cap |
