Valve for handling hot caustic alumina solution with provision f

Details Valve for handling hot caustic alumina solution with provision f Valve for handling hot caustic alumina solution with provision f

1980-08-07

1982-07-13

Walton, George L.

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Cleaning or steam sterilizing

51241VS, 74 25, 74 8915, 744248VA, 137331, 251 81, 251133, 251229, 2512495, 251267, 464 37, B24B 1502

Patent

active

043389619

ABSTRACT:
A valve structure is provided which can be opened and closed under operating conditions without any adjustment in conditions existing in the system in which the valve is an element. The valve element can be turned with respect to the seat to provide for proper relation between the valve element and the valve seat to grind one with respect to the other during the operating cycle. The valve also includes a clutch having a radial acting trip overload that prevents the valve seat from being damaged during grinding which is effected by turning the valve through the clutch while moving the valve toward the seat during the closing cycle and produces a controlled grinding operation independent of pressure within the valve.
When the valve is operated in the opposite direction, the clutch disengages and the actuator mechanism encounters only the thrust forces during the opening cycle. This allows the valve to be easily opened without overloading the system.

REFERENCES:
patent: 1865559 (1932-07-01), Montgrand
patent: 2253466 (1941-08-01), Grohn
patent: 2996075 (1961-08-01), Deimer et al.
patent: 3313178 (1967-04-01), Saunders
patent: 3505888 (1970-04-01), Denkowski
patent: 4114851 (1978-09-01), Shivak et al.
patent: 4177825 (1979-12-01), Crawford

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