| 摘要 |
FIELD: construction industry; sanitary engineering. SUBSTANCE: filter is intended for catching trash in washing-off devices. It has perforated strip for passing water with longitudinally split pipe. This pipe is adapted for changing its diameter according to diameter of drain hole. Filter is provided with additional screen with holes which are smaller than diameter of holes in strip. Strip is provided with clamps for fixing of screen. Pipe is rigidly fastened to strip at one or two points, and in its upper part it has holes for water outflow between pipe and strip. Strip is made of metal foil or rubber. EFFECT: higher efficiency. 5 cl, 4 dwg
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