3 JamesburyVALVE SOLUTIONS Performance Advantages Over Ordinary Valves Compared with traditional butterfly valves and many other valve types, Wafer-Sphere butterfly valves deliver several unique benefits. High Pressure Ratings Jamesbury® high-performance butterfly valves are rated at ANSI 150, 300 and 600 pressure classes. They offer proven reliability in applications ranging from vacuum to very high pressure. Application Range Wafer-Sphere designs and materials can handle a broad range of services. Wide Temperature Range WithXtreme sealing materials, Wafer-Sphere butterfly valves are fully rated to replace costlier valves in cryogenic (-320°F) to hightemperature (500°F) applications. Easy Automation Like traditional butterfly valves, Wafer-Sphere high-performance butterfly valves are always easier to automate than gate valves, and often easier to automate than other rotary valves. Wafer-Sphere A closer look Nothing compares when you take a close look at Wafer-Sphere butterfly valves. See for yourself what makes it the most preferred brand of high-performance butterfly valve. A Low-Cost Environmental Solution With Emission-Pak® assemblies and our unique, retrofittable stem sealing device, Wafer-Sphere valves can easily be adapted to comply with evolving emissions regulations. Reliability Jamesbury seats can provide reliability and tight shut-off under many damaging process conditions. Lower Installed Cost and Higher Performance than Gate Valves Wafer-Sphere high-performance butterfly valves are designed to replace gate valves in most applications, whether for easier automation or simply for lower cost and improved performance. This is truly one case where less is more. Increased Safety Assurance In difficult applications, like steam, the reliable, tight sealing of Wafer-Sphere high-performance butterfly valves reduces fugitive emissions. Features at a Glance Positive Shaft Retention Positive shaft retention prevents movement of the shaft past the compression plate. Positive Shut-Off Flexible-lip polymeric seat assures positive shut-off, compensating for wear to extend life. Easy Maintenance Only the insert needs to be removed to replace the seat. The insert and seat are self-aligning. Fire-Tite® Sealing Wafer-Sphere Fire-Tite valves meet the requirements of API 607, 4th edition with a secondary metal seat that ensures tight sealing before, during and after a fire. Low Torque Requirements Low output torque requirements allow the use of less costly actuators. Wide Pressure Range Available in 150 lb. (Series 815), 300 lb. ( Series 830), and 600 lb. (Series 860) pressure classes — in wafer and in single-flanged lugged designs. Broad Range of Materials Available in a broad range of materials for standard and special services including chlorine, oxygen, cryogenics and vacuum.
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