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Valcor provides a series of
solenoid operated valves, designed to the provisions of ASME III, which are traditionally
used for reactor coolant pressure boundary applications. More than 15,000 ASME III
solenoid valves have been manufactured by Valcor since the early '70's. Solenoid valves are offered in several basic configurations, in sizes ranging from 1/4" to 8" NPS, and can handle a variety of liquid and gaseous media. We can accommodate a range of AC and DC voltage requirements, provide multiple position indication switches, and have several options available for sealing the body-to-bonnet interface. Valves can be normally energized open (fail closed), normally energized closed (fail open), or fail as is. Rigorous testing and analysis has been performed to demonstrate compliance with the environmental qualification requirements of IEEE 323-1974 and 1983, 344-1975, 1987, 382-1980 and 1985 and with the position of NUREG-0588 Category 1. The valves are also qualified to enveloped seismic criteria. Normally, all Valcor ASME III valves are designed to meet a qualified life requirement of up to 40 years of normal service, plus up to one year of post-accident operation. Non-metallic seals and small items of insulation outside the pressure boundary may, however, have a shorter qualified life, dependent upon ambient conditions and operational requirements. Extremely high reliability is inherent as a result of the rugged design, simplicity of operation, and minimum number of moving parts. Isolation standoffs prevent excessive heat transfer from the body of the valve to the solenoid operator, and internal parts are contoured to retard buildup of sludge and contamination. A completely enclosed and encapsulated coil insures continuous operation during a LOCA event. Valcor provides complete, lifetime spare parts and service support for all of our products.
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