Valves and valve actuation – Hermetic flexible wall seal for actuator
Patent
1977-04-04
1979-10-23
Cline, William R.
Valves and valve actuation
Hermetic flexible wall seal for actuator
251214, 251225, F16K 3150
Patent
active
041717929
ABSTRACT:
A globe type Y-pattern diaphragm valve for high pressure, high temperature service affording increased diaphragm cycle life, enhanced flow coefficient and features of decreased construction cost. Comprising the diaphragm in one embodiment is a resiliently supported multi-layer cartridge formed of superimposed layers of different metals having different moduli of elasticity with the upper layers being radially slotted to redistribute encountered stress loads. In an alternate embodiment the multi-layer diaphragm cartridge is comprised of superimposed layers of like composition but of varying relative thicknesses and supported to afford a controlled flexure. An auxiliary porting in the discharge passage adjacent the valve head in combination with a downstream tapered and faired beltway effects a more nearly streamlined flow path to increase the flow coefficient rating of the valve. By means of a multi-purpose packing gland identically threaded both inside and out, the gland is able to also function as a stem bushing enabling a comparatively inexpensive bar stock bonnet construction to be employed.
REFERENCES:
patent: 556702 (1896-03-01), Snow
patent: 1316585 (1919-09-01), Logan
patent: 1466243 (1923-08-01), Neal
patent: 1497275 (1924-06-01), Hench
patent: 1695534 (1928-12-01), Carter
patent: 1732052 (1929-10-01), Joyce
patent: 1749774 (1930-03-01), McKay
patent: 1826158 (1931-10-01), Valmore
patent: 1843068 (1932-01-01), Von Wangenheim et al.
patent: 1910994 (1933-05-01), Joyce
patent: 2061028 (1936-11-01), Forbes et al.
patent: 2241056 (1941-09-01), Chilton
patent: 2388046 (1945-10-01), Emrich
patent: 2507851 (1950-05-01), Bryant et al.
patent: 2642255 (1953-06-01), Lindgren
patent: 2665105 (1954-01-01), Svabek, Jr.
patent: 2704548 (1955-03-01), Ralston
patent: 3295856 (1967-01-01), Bredtschneider
patent: 3874636 (1975-04-01), Bake et al.
Cline William R.
Dresser Industries Inc.
Rubin Daniel
Spiegel H. Jay
LandOfFree
High pressure diaphragm valves does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High pressure diaphragm valves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High pressure diaphragm valves will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-407002