
Supplier product photograph. Original product markings are retained for this preview.
English translation of photo labels
- Secure fastening / Easy installation / Sealing / Vibration damping.
- The original image also carries a manufacturer patent and anti-counterfeiting notice. Supporting patent details have not been provided.
Duct accessories
Flexible PVC Duct Couplings and Reducers
Flexible PVC couplings for joining compatible round ducts and fan connections. A clamp-based connection provides a removable alternative to adhesive or welded joints.
- White flexible PVC
- One-piece moulded body
- 304 stainless-steel clamps listed
- Straight and reducing sizes
- Designed to reduce vibration transmission through the connection
Availability, configuration and pricing confirmed on enquiry.
PRODUCT DETAILS
How the duct connection fits together
The supplier illustrates flexible couplings between the fan connections and rigid PVC duct.

Duct · coupling · fan · coupling · duct
Original catalogue connection illustration, with the Chinese explanatory labels replaced by this English caption.
- Select the straight or reducing coupling from the two internal-diameter values in the table.
- Fit each end to the compatible duct or fan connection and secure it with the specified hose clamp.
- The catalogue describes a removable connection without adhesive or welding, and a flexible body intended to reduce vibration transfer.
Confirm insertion depth, clamping range and connection compatibility. Quantified retention, material and patent claims remain subject to supporting documents.
CATALOGUE DATA
Specifications.
| Configuration / model | Small internal diameter (mm) | Large internal diameter (mm) | Material | Colour | Mounting |
|---|---|---|---|---|---|
| 75/100 mm | 75 | 100 | Flexible PVC | White | Hose clamps |
| 90/100 mm | 90 | 100 | Flexible PVC | White | Hose clamps |
| 100/110 mm | 100 | 110 | Flexible PVC | White | Hose clamps |
| 110/110 mm | 110 | 110 | Flexible PVC | White | Hose clamps |
| 110/150 mm | 110 | 150 | Flexible PVC | White | Hose clamps |
| 150/160 mm | 150 | 160 | Flexible PVC | White | Hose clamps |
| 160/160 mm | 160 | 160 | Flexible PVC | White | Hose clamps |
| 160/200 mm | 160 | 200 | Flexible PVC | White | Hose clamps |
| 160/180 mm | 160 | 180 | Flexible PVC | White | Hose clamps |
| 180/200 mm | 180 | 200 | Flexible PVC | White | Hose clamps |
| 200/200 mm | 200 | 200 | Flexible PVC | White | Hose clamps |
| 200/250 mm | 200 | 250 | Flexible PVC | White | Hose clamps |
| 250/250 mm | 250 | 250 | Flexible PVC | White | Hose clamps |
| 250/315 mm | 250 | 315 | Flexible PVC | White | Hose clamps |
| 315/315 mm | 315 | 315 | Flexible PVC | White | Hose clamps |
Scroll horizontally to compare all fields. Each row describes its own voltage and operating configuration.
Values and performance curves are supplied in the product catalogue. They are not independent BROSNGAN test results. Airflow and maximum static pressure are separate catalogue ratings, not a simultaneous duty point. Noise test conditions and measurement distance are not provided. Confirm the exact voltage, configuration, dimensions and applicable test reports before ordering.
LET'S FIND YOUR AIRFLOW
