PATHFINDER ATOMIC POWER PLANT. BUTTERFLY VALVE CAVITATION TEST
Tests were made on butterfly vaives similar to those used in the discharge leg of each of the three external recirculation loops of the Pathfinder reactor in order to determine the critical values of a dimensionless cavitation number ( /occurred in pu ) used to specify the limits of operation for reactor valves, at incipient cavitation. The experimentally determined values of the cavitation number were used to determine the cavitation-free control range of the Pathfinder valves. The tests showed that both the undissolved and dissolved air content of the water caused cavitation to occur at higher values of sigma. It appeared that cavitation first occurred in the vortices downstream of the valve disk. A limiting cavitation condition was defined for the reactor butterfly valves. (M.C.G.)
- Research Organization:
- Allis-Chalmers Mfg. Co. Atomic Energy Div., Milwaukee
- NSA Number:
- NSA-17-022845
- OSTI ID:
- 4717440
- Report Number(s):
- ACNP-62004
- Country of Publication:
- United States
- Language:
- English
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