2 JamesburyVALVE SOLUTIONS Why Wafer-Sphere high-performance butterfly valves? Our Wafer-Sphere high-performance butterfly valve combines a special off-center disc with proprietary seat designs and revolutionary Xtreme® sealing technology to provide you with the tightest-sealing, longest-lasting, lowest-cost alternative to gate valves, as well as to other heavier, rotary-type valves. Since their cycle life is far greater than a traditional butterfly valve, Wafer-Sphere highperformance butterfly valves are often a more cost-effective solution even for applications without high-performance service demands. They are especially suitable for applications in grain/cornprocessing, chemicals, petrochemicals, power, refining, steel, air separation, HVAC and more. Jamesbury brand valves have always been recognized leaders in valve technology. For nearly 50 years, their unique features have been field-proven to provide troublefree shut-off in thousands of applications just like yours. This experience allows us to provide a butterfly valve that can lower your costs without risking performance. Gate Valves • Metal wedge and seats are prone to wear and erosion. • Significant manpower hours are required to install and repair. • Time-consuming maintenance requires full disassembly. • Special yokes or other devices are needed for actuation. Wafer-Sphere • High-Performance Butterfly Valves • Flexible lip seats and eccentric disc resist erosion and wear. • Total costs are comparatively lower as valve size increases. • Simple tightening of the valve gland packing stops leakage. • Actuators easily accept limit switches and positioners.
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