| 摘要 |
FIELD: agricultural engineering, in particular, bird watering equipment. ^ SUBSTANCE: waterer has casing equipped with device for connection to pipeline, stem disposed in casing cavity, conical valve connected with stem, and pusher positioned in seat and having head fixed at end facing stem. Pusher free end protrudes beyond casing. Stem is spaced apart from pusher. Angular gap of 8-12° is provided between conjugated valve and seat surfaces. ^ EFFECT: increased efficiency owing to compensating of non-uniform wearing of valve working surface and high-quality cleaning of conjugated working surfaces of seat and valve. ^ 7 cl, 1 dwg |
