Valves and valve actuation – Mechanical movement actuator – Particularly packed or sealed
Patent
1984-02-29
1986-04-29
Scott, Samuel
Valves and valve actuation
Mechanical movement actuator
Particularly packed or sealed
251274, 251330, 251355, 137315, 403 2, 403 17, 403259, 74548, 74553, 16117, 16DIG24, 292350, F16K 3150, F16K 3160
Patent
active
045852103
ABSTRACT:
The valve is particularly designed compatible for use with toxic or highly flammable fluids. It has a hard valve stem tip, such as tungsten carbide which is pushed longitudinally against the valve seat and not rotated into sealing position. The valve is provided with a backseat threaded to the valve body so that if the bonnet or packing nut is very seriously abused by the operator even to the extent of twisting or breaking, the valve will not blow out toxic or flammable fluid. Most of the parts of the valve are made of stainless steel and provisions are made for lubricating the working parts of the valve. Notches in the valve stem and packing nut provide for a safe clean break of these parts in the event they are over stressed.
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Coffee Wendell
Flanigan Allen J.
Scott Samuel
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