FIELD: sanitary accessories, flush tanks, floor bowls. SUBSTANCE: bottom valve is installed on lever by means of bushing, centering valve relative to seat and devices for lifting of bottom valve, and hemispheres embracing the lever. Conjugation of lower hemisphere with bushing is made by conical surface. Bottom valve cross-section is made in form of bulb. Bottom valve center of gravity is located below spherical sealing surface with seat taper being 60 ± 5 deg. EFFECT: higher efficiency. 2 cl, 2 dwg
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Authors
Dates
1997-09-20—Published
1993-12-01—Filed