Membrane tube diffusers
PRO₂AIR Pre-PUR 622
PRO₂AIR Pre-PUR 622 is polyurethane (PUR) membrane tube in long lengths from 2 to 50 m, with an inner diameter of 64.5 mm and a wall thickness of 0.7 mm. The tube is mounted on an adapter body with clamps.
- Polyurethane (PUR)
- −40 to +90 °C
- DWA-M 115
- Wastewater
Technical specifications
The product's key specifications are briefly summarised below.
| Type | Membrane tube in long lengths |
|---|---|
| Material | Polyurethane (PUR) |
| Colour | Transparent |
| Wall thickness | 0.7 mm |
| Temperature | −40 to +90 °C |
| Manufacturer SKU | 6222702 |
Dimensions and ordering
The table shows the lengths from 2 to 50 m.
| Inner Ø |
Total length |
Weight |
Article no. |
|---|---|---|---|
| 64.5 | 2000 | 0.33 | 62200202702 |
| 64.5 | 5000 | 0.83 | 62200502702 |
| 64.5 | 10000 | 1.66 | 62201002702 |
| 64.5 | 20000 | 3.33 | 62202002702 |
| 64.5 | 25000 | 4.16 | 62202502702 |
| 64.5 | 30000 | 4.99 | 62203002702 |
| 64.5 | 40000 | 6.66 | 62204002702 |
| 64.5 | 50000 | 8.32 | 62205002702 |
Length is given in mm (2000 mm = 2 m). Weight is per length. The manufacturer lists the lengths as 2–50 in a column labelled mm, but the item numbers show that they are metres.
Frequently asked questions
What is the difference between PUR and EPDM?
According to the manufacturer, the PUR membranes have a wider operating range (normal operation 3–8 Nm³/(h·m Aer.)) and withstand −40 to +90 °C (Pre-PUR 602 only up to +60 °C), while the EPDM membranes have normal operation 6–8 Nm³/(h·m Aer.) and withstand 0 to +85 °C.