NORRES CONNECT 270-271
Metal hose connector and reducer – galvanized or stainless steel version
The NORRES CONNECT 270-271 series consists of robust metal connectors and reducers made of galvanized steel. They are used to connect or reduce between two industrial hoses in ventilation, extraction, and vacuum systems. The series is also available in stainless-steel (INOX) on request and can withstand temperatures up to 200 °C.
Properties and construction
- Easy and quick installation – reusable (threaded version).
- Galvanized steel with high mechanical strength.
- Also available in stainless-steel (INOX) on request.
- Temperature resistance up to 200 °C.
- Complies with RoHS and REACH regulations.
Applications
For connecting and joining NORRES hoses in ventilation, process, and extraction systems. Suitable for industrial and workshop installations where a stable and airtight metal connection is required instead of plastic. The reducer versions are used to transition between two hose diameters.
Technical note
CONNECT 270-271 ensures a mechanically strong and heat-resistant connection capable of handling high airflows and thermal stress. In ATEX installations, however, the correct hose and coupling combination must be chosen to maintain equipotential bonding throughout the system. Galvanized steel provides good electrical continuity between components.
Variants
- CONNECT 270 – connector: same diameter on both ends (hose ↔ hose).
- CONNECT 271 – reducer: transition between two different diameters (hose ↔ hose).
Recommended accessories
- CLAMP 211 / 212 / 217 – hose clamps for secure fixing.
- CONNECT 228 – adapter components for other coupling types.
Need help choosing the right metal connector?
Contact us for advice on metal couplings, reducers and hose clamps for your NORRES hoses.
FAQ: NORRES CONNECT 270-271
What is CONNECT 270-271 used for?
For connecting or reducing between two industrial hoses in metal execution.
Which materials are available?
Galvanized steel as standard and stainless-steel (INOX) on request.
What is the temperature resistance?
Up to 200 °C depending on installation and hose type.
Can it be used in ATEX installations?
Yes – when combined with correctly conductive hoses and clamps ensuring electrical continuity.
How is the connector fixed?
Using hose clamps (CLAMP 211 / 212 / 217) on both sides.
Related links
Technical specifications – CONNECT 270-271
The table lists standard dimensions for CONNECT 270 (connectors) and CONNECT 271 (reducers). All values in mm, measured at ≈ 20 °C.
CONNECT 270 – Connectors (same diameter)
| Hose Ø (mm) | L1 (mm) | L2 (mm) | Total L3 (mm) | Wall thickness (mm) | Weight (kg) | Order No. |
|---|---|---|---|---|---|---|
| 50 | 40 | 40 | 90 | 0.60 | 0.200 | 270-0050-0000 |
| 60 | 40 | 40 | 90 | 0.60 | 0.200 | 270-0060-0000 |
| 75 | 40 | 40 | 90 | 0.60 | 0.200 | 270-0075-0000 |
| 100 | 40 | 40 | 90 | 0.60 | 0.200 | 270-0100-0000 |
| 150 | 40 | 40 | 90 | 0.60 | 0.500 | 270-0150-0000 |
| 250 | 60 | 60 | 130 | 0.60 | 0.800 | 270-0250-0000 |
| 315 | 60 | 60 | 130 | 0.70 | 1.100 | 270-0315-0000 |
| 400 | 80 | 80 | 170 | 0.70 | 1.600 | 270-0400-0000 |
CONNECT 271 – Reducers (different diameters)
| Ø D1 (mm) | Ø D2 (mm) | L1 (mm) | L2 (mm) | Total L3 (mm) | Wall thickness (mm) | Weight (kg) | Order No. |
|---|---|---|---|---|---|---|---|
| 75 | 50 | 40 | 40 | 135 | 0.60 | 0.200 | 271-0075-0000 |
| 100 | 80 | 40 | 40 | 140 | 0.60 | 0.200 | 271-0100-0000 |
| 150 | 100 | 40 | 40 | 175 | 0.60 | 0.300 | 271-0150-0000 |
| 200 | 150 | 40 | 40 | 175 | 0.60 | 0.500 | 271-0200-0000 |
| 250 | 200 | 60 | 40 | 200 | 0.60 | 0.800 | 271-0250-0000 |
| 300 | 200 | 60 | 40 | 265 | 0.70 | 1.200 | 271-0300-0000 |
All values at approx. 20 °C. Subject to technical modifications.
