NRV
NRV is a non return valve designed to help prevent an explosion, fire and dust from travelling through the extraction line from the filter unit back into the production area.
Non return valve
Available diameters: 200 to 550 mm
Extraction and suction pipework
Need help selecting the correct valve size? Call +385 (0)31 701 211 and our team will help you choose the right NRV configuration.
Product description
Reliable Explosion Isolation
NRV non return valves provide an important layer of protection in industrial dust extraction systems. Installed in the suction line, the valve helps prevent an explosion, fire and dust from propagating from the filter unit back into the production area. The NRV series provides a safe isolation solution for extraction systems handling potentially explosive dust.
Technical data
Specifications
The values presented are indicative and refer to the standard configuration. Final performance parameters are determined based on your process requirements and the number of workstations.
| Pressure drop at 20 m/s | 340 Pa |
|---|---|
| Diameter | 200 mm |
| Dimensions (W × D × H) |
575 × 270 × 510 mm |
| Pressure drop at 20 m/s | 340 Pa |
|---|---|
| Diameter | 250 mm |
| Dimensions (W × D × H) |
625 × 295 × 560 mm |
| Pressure drop at 20 m/s | 330 Pa |
|---|---|
| Diameter | 300 mm |
| Dimensions (W × D × H) |
675 × 320 × 610 mm |
| Pressure drop at 20 m/s | 320 Pa |
|---|---|
| Diameter | 350 mm |
| Dimensions (W × D × H) |
725 × 345 × 660 mm |
| Pressure drop at 20 m/s | 320 Pa |
|---|---|
| Diameter | 400 mm |
| Dimensions (W × D × H) |
775 × 370 × 710 mm |
| Pressure drop at 20 m/s | 400 Pa |
|---|---|
| Diameter | 550 mm |
| Dimensions (W × D × H) |
925 × 465 × 880 mm |
Advantages
Why NRV
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Documentation
Technical documentation and certificates
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SNR
Non return valve designed to help prevent explosion pressure, fire and dust from travelling through the suction line from the filter back into the production area.
Are you interested in NRV?
Tell us about your pipe diameter, dust characteristics, airflow and system requirements, and our team will recommend the right NRV configuration and prepare a tailored quote.