FIELD: gas burner devices of domestic boilers and apparatus. SUBSTANCE: block-cock includes body 1 with gas supply branch pipe 2, movable valve 3 made in form of cylinder closed at one end and provided with two outer sealing rings 4 with peripheral holes between them. Interior of cylinder is brought in communication with gas distributor 13 and burner nozzles 14 through circular clearance A; other end of valve is connected with control handle 7 through cotter pin 5 and adjusting screw 6, thus ensuring axial motion of valve 3 till it rests it against diaphragm 8. EFFECT: enhanced reliability. 3 cl, 1 dwg
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Authors
Dates
1997-12-27—Published
1995-05-23—Filed