VALVE WITH FILTER Russian patent published in 2012 - IPC F16K5/06 B01D35/04 

FIELD: machine building.

SUBSTANCE: valve with filter includes body 1 with ball gate valve 6, inlet 2 and outlet 3 coupling branch pipes located on one axis on opposite sides, filtration chamber 5 located radially relative to axis of inlet 2 and outlet 3 branch pipes, plug 9 and filtering element 10 in the form of a bushing. Clear gap of cavity of body 1 between inlet 2 and outlet 3 coupling branch pipes is shut-off with dividing cross connection 11. Filtration chamber 5 has annular centring element 13 adjacent to one of end parts 12 of filtering element 10 and passing along dividing cross connection 11 and part of body in the zone of inlet 2 branch pipe, in the centre of which inlet hole 14 is located. Plug 9 is fixed in filtration chamber 5 and provided with annular centring element 15 that is adjacent to the second end part 16 of filtering element 10. Annular centring elements 13, 15 and filtering element 10 are located on one and the same axis crossing the location axis of inlet 2 and outlet 3 branch pipes at right angle. Ball gate valve 6 is provided with guide opening 18 and installed in body 1 between dividing cross connection 11 and inlet 2 branch pipe with possibility of being turned manually through right angle. Inner side walls 23 of filtration chamber 5 are located at some distance from external surface 24 of filtering element 10 for formation of annular cavity 25 located around filtering element 10 and interconnected with cavity 26 of outlet coupling branch pipe 3 by means of discharge channel 27. Side surfaces of discharge channel 27 are located at sharp angle to axis of inlet 2 and outlet 3 branch pipes, the vertex of which faces the direction from inlet 2 branch pipe to outlet 3 branch pipe.

EFFECT: enlarging the number of means of shutoff and water purifying valves for pipelines, which provide high purification degree in compliance with the parameters specified with filtering element owing to reducing the probable penetration of filtered particles through filtering element.

7 cl, 2 dwg