Fire-resistant valves are used in air extraction systems. They comply with the general rules of BS476, part 20: 1987, tested for fire safety and functioned satisfactorily and maintained their integrity through the 125-minute test.
| Article | Description | Details | Material | ||
| 653.005.00 | DSOP Fireproof valve Ø100mm | Infinitely adjustable | Steel | ||
| 653.006.00 | DSOP Fireproof valve Ø125mm | Infinitely adjustable | Steel | ||
| 653.007.00 | DSOP Fireproof valve Ø150mm | Infinitely adjustable | Steel | ||
| 653.008.00 | DSOP Fireproof valve Ø160mm | Infinitely adjustable | Steel | ||
| 653.009.00 | DSOP Fireproof valve Ø200mm | Infinitely adjustable | Steel |