

63 mm Plastic Cap for Flexible Duct Systems
Plastic end cap for flexible duct systems
This end cap is designed for reliable and airtight sealing of unused duct branches and ends in the ventilation system. Made of durable polypropylene, it ensures easy installation and long-term system tightness.
Why choose these plastic end caps?
Plastic end caps are an essential component to ensure the complete airtightness of a ventilation system. They are made of high-quality polypropylene (PP) with thermoplastic (SEBS) elements, guaranteeing durability and resistance to temperature fluctuations. Thanks to precise dimensions, these caps are easy and quick to install.
The importance of system airtightness
Any open or unused duct branch in a distribution box can lead to airflow losses and reduce the efficiency of the entire heat recovery system. By tightly sealing unused ports with special end caps, even and balanced air distribution to living spaces is ensured.
Compatibility with ventilation components
These end caps are perfectly suited for standard flexible duct systems, including distribution boxes and manifolds. To ensure maximum airtightness, it is recommended to use them in conjunction with appropriately sized rubber sealing rings. ORO Haus specialists are always ready to help you select the right components for your project.
Technical specifications
Key specifications ensuring the reliability and compatibility of the end cap with the ventilation system.
| Parameter | Value |
|---|---|
| Material | Polypropylene (PP) with thermoplastic (SEBS) |
| Purpose | Sealing unused branches or ports |
| Compatible diameters | 63 mm / 75 mm / 90 mm |
| Suitability | For flexible duct systems |
Dimensions by diameter
Exact dimensions of the end cap according to the selected duct size can be found below.
| Parameter | 63 mmSelected | 75 mm | 90 mm |
|---|---|---|---|
| Outer diameter (D) | 63 mm | 75 mm | 90 mm |
The installation of plastic end caps is straightforward and requires no special tools, but it is important to follow the correct sequence to prevent air leaks.
Location selection
End caps are installed on distribution boxes, manifolds, or duct ports that will not be used for air supply or exhaust according to the ventilation design.
Sealing
Before inserting the end cap, it is recommended to fit a rubber sealing gasket of the appropriate diameter onto the port to ensure the connection is completely airtight.
Fixation
The end cap is firmly pressed into the port or duct until fully seated. If necessary, locking clips can be used to ensure additional security.

Complete your flexible duct system
Choose the right flexible ducts, distribution boxes, sealing rings, and fasteners for flawless ventilation.
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