Product code/Designation: QT-
To check the straightness and drainage of pipes after installation. Select test results according to BFP tube size (see Table 17). Test by pulling the test ball through the pipe after temporarily burying the pipe and after completely placing the BFP piping system.
When ordering, please clearly state: QT-…
For example: Buy a test ball with an outer diameter of 20 mm and a length of 400 mm to check the installation of BFP 30 pipes, write: QT-20×400.
About choosing the appropriate test result size and steps to take when checking with test results.
| Outer diameter of electric cable (mm) | Suitable BFP tube (mm) | Minimum bend radius of BFP pipe (mm) |
|---|---|---|
| ≤ 12 | BFP 25 ÷ BFP 30 | ≥ 90 |
| 12 ÷ 25 | BFP 40 | ≥ 150 |
| 25 ÷ 40 | BFP 50 ÷ BFP 80 | ≥ 200 |
| 40 ÷ 50 | BFP 80 ÷ BFP 100 | ≥ 300 |
| 50 ÷ 60 | BFP 100 ÷ BFP 150 | ≥ 400 |
| 60 ÷ 85 | BFP 150 ÷ BFP 175 | ≥ 500 |
| 85 ÷ 130 | BFP 175 ÷ BFP 200 | ≥ 750 |