An explosion involves not only the immediate processed material, but can also propagate to the rest of the process. This propagation can be avoided if the affected processed material is quickly isolated by a non-return valve.
The BAR non-return valve is designed to separate the filter from the plant. It is a simple and effective system that is easy to install, without electronics which requires no electrical connections, practically no maintenance and with very low pressure loss.
The BAR non-return valve is an excellent ATEX certified safety system for the compartmentalization of an explosion and is suitable for use in EX zone 21 (ext.) and up to EX zone 20 (int.).
ADVANTAGES OF THE BAR NON-RETURN VALVE
- Economically suitable solution for security against an explosion
- Completely mechanical requiring practically no maintenance
- No power consumption
- Simple assembly, operation and maintenance
- Low pressure loss
- High pressure resistance
- Applicable for dust St1 organic & non-metallic
- Short installation distance
SPECIFICATIONS: BAR NON-RETURN VALVE
| MATERIAL | Body in steel M16S03 Clasing flap in HB 400 (HARDOX) Surface treatment in powder coated RAL5010 |
| TYPE | Welded plates with welded FA flanges |
| TEMPERATURE RANGES | -20°C to +60°C |
| CONFORMITY ACCORDING TO | EN 16447:2014 |
| CERTIFICATION NUMBER | FTZU 14 ATEX 0111X FTZU 16 ATEX 0003X |
| ATEX NORM 114 | 2014/34/EC |
| EXTERIOR ZONE CERTIFICATION | 21-22 |
| INTERIOR ZONE CERTIFICATION | 20-21-22 |
| LEVEL OF PROTECTION | St1 (organic and nonmetallic) uo to 200 bar m/s |
| Kst MAX. | 200 bar.m.s-1 |
| Pred MAX. | 0.5 bar |
| MAXIMUM AIR SPEED | 30 m/s |
| USE | Indoors or outdoors |
| MIN./MAX. INSTALLATION DISTANCE FROM FILTER Ø200 to 400 | 2 m / 7 m |
| MIN./MAX. INSTALLATION DISTANCE FROM FILTER Ø450 to 650 | 3 m / 7 m |
| MAX DUST CONCENTRATION IN DUCT | Without limits |
| OTHER | Only to be used in horizontal ducting |
| PRESSURE LOSS | Click here or see image below |
| DIMENSIONS | Click here or see image below |
MAINTENANCE MANUAL FOR THE BAR NON-RETURN VALVE
View or download the maintenance manual for the BAR non-return valve (opens pdf-document in new browser tab).
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