Valves and valve actuation – Valve – Bodies
Patent
1979-03-01
1980-10-28
Rosenthal, Arnold
Valves and valve actuation
Valve
Bodies
137269, 251333, F16K 2712
Patent
active
042303010
ABSTRACT:
A straight compression valve is disclosed in which shutoff of flow of fluid is effected between surfaces of plastic material, but in which a washer of non-metallic material may be employed under certain conditions. When the washer is not used, the design of the sealing surfaces is such as to obtain a highly effective shutoff with a minimum of closing pressure, while avoiding breakage of parts of the valve adjacent the sealing surfaces. Means are provided for controlling the movement of the valve bonnet to prevent breakage thereof and other parts during such movement. The valve body is provided with flats or flat surfaces which are so disposed or positioned in relation to the valve as a whole as to enable the valve to be clamped in a vise for facilitating access to the stem and other parts of the valve. The use of packing glands is avoided through the use of an O-ring and its structural location in the valve.
REFERENCES:
patent: 3473785 (1969-10-01), Siepmann
patent: 3593953 (1971-07-01), Mueller
Rosenthal Arnold
U-Brand Corporation
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