| 摘要 |
A component (1) for installation in a water mist and fine water spray system for fire protection, the component comprising a body having water inlet (5) and water outlet (7), said component cavity is divided by a perforated screen (2), into a hydraulic upstream cavity (3) and a hydraulic downstream cavity (4), said downstream cavity (4) is hydraulically connected to the water outlet (7), a debris collecting cavity 8, said debris cavity (8) comprising a debris opening (9), said component comprising a valve (20) and an seat (16) and a spring (21), said spring (21) applying a spring force pressing the valve (20) against a seat (15), when the water pressure increase in upstream cavity (3) due to debris collected in the cavity (3), the water pressure course the valve (20) traveling away from the seat (15), and collected debris flows out with water through cavity 8 and debris opening (9). Hereby the screen is automatically cleaned for collected debris inside the component (1). |
