
A straight coupling for joining two lengths of HDPE fresh air pipe end to end. Push-fit joints on both ends mean a joint takes seconds and no glue, tape or tools are involved. The seal works on the pipe outside diameter, so the joint stays airtight even after the pipe has been handled on site.
| Item | Specification |
|---|---|
| Available Sizes / Models | 70/110/160/200/250 |
| Description | Quick buckle straight coupling for HDPE fresh air pipeline. Used for straight connection of two sections of ventilation pipes, easy assembly and disassembly, excellent sealing effect for residential fresh air duct systems. |
| Material / Construction | High-quality PP engineering plastic |
Combine with quick-connect tees, reducing couplings, pre-insulated HDPE ducting and flange couplings for larger sizes.
Q: Is glue or tape required?
A: No, the push-fit joint is airtight as assembled.
Q: Can it join two different diameters?
A: No, use a reducing coupling for size changes.
Q: Can it be taken apart again?
A: Yes, the buckle joint can be released.



The southeast corner of the private entrepreneurship park in Huadian Town, Qihui County, Dezhou City, Shandong Province

