Jamesbury® Wafer-Sphere® High-Performance Butterfly …

1 jamesbury wafer - sphere High-Performance Butterfly ValvesMetso North America2 JamesburyVALVE SOLUTIONSWhy wafer -Spherehigh-performancebutterfly valves ?Our wafer -Spherehigh- performance butter-fly valve combines a special off-center discwith proprietary seat designs and revolution-ary Xtreme sealing technology to provideyou with the tightest-sealing, longest-lasting,lowest-cost alternative to gate valves , as wellas to other heavier, rotary -type their cycle life is far greater than atraditional Butterfly valve, wafer -Spherehigh- performance Butterfly valves are often amore cost-effective solution even for appli-cations without High-Performance are especially suitable for applica-tions in grain/cornprocessing, chemicals,petrochemicals, power, refining, steel, airseparation, HVAC and valves have always been recognized leaders in valve nearly 50 years.

2 Their unique features have been field-proven to provide trouble-free shut-off in thousands of applications just like yours. This experience allows us toprovide 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 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 SOLUTIONSP erformance Advantages OverOrdinary ValvesCompared with traditional Butterfly valvesand many other valve types, wafer -Spherebutterfly valves deliver several unique Pressure RatingsJamesbury High-Performance butterflyvalves are rated at ANSI 150, 300 and 600pressure classes.

3 They offer proven reliabilityin applications ranging from vacuum to veryhigh pressure. Application RangeWafer-Spheredesigns and materials canhandle a broad range of Temperature RangeWith Xtremesealing materials, wafer -Spherebutterfly valves are fully rated to replacecostlier valves in cryogenic (-320 F) to high -temperature (500 F) AutomationLike traditional Butterfly valves , wafer -Spherehigh- performance Butterfly valves are alwayseasier to automate than gate valves , andoften easier to automate than other closer lookNothing compares when you take a close look at wafer -Spherebutterfly valves . Seefor yourself what makes it the most preferred brand of High-Performance Butterfly Low-Cost Environmental SolutionWith Emission-Pak assemblies and ourunique, retrofittable stem sealing device, wafer -Spherevalves can easily be adapted tocomply with evolving emissions can provide reliability andtight shut-off under many damaging Installed Cost and HigherPerformance than Gate ValvesWafer-Spherehigh- performance butterflyvalves are designed to replace gate valves inmost applications, whether for easierautomation or simply for lower cost andimproved performance .

4 This is truly one casewhere less is Safety AssuranceIn difficult applications, like steam, the reli-able, tight sealing of wafer -Spherehigh- performance Butterfly valves reducesfugitive at a GlancePositive Shaft RetentionPositive shaft retention preventsmovement of the shaft past thecompression Shut-OffFlexible-lip polymeric seat assurespositive shut-off, compensating forwear to extend MaintenanceOnly the insert needs to be removedto replace the seat. The insert and seatare SealingWafer- sphere Fire-Titevalves meet therequirements of API 607, 4th editionwith a secondary metal seat thatensures tight sealing before, duringand after a Torque RequirementsLow output torque requirementsallow the use of less costly Pressure RangeAvailable in 150 lb. (Series 815), 300 lb.

5 (Series 830), and 600 lb. (Series 860)pressure classes in wafer and insingle-flanged lugged Range of MaterialsAvailable in a broad range of materialsfor standard and special servicesincluding chlorine, oxygen, cryogenicsand VALVE SOLUTIONSW afer-Spherehigh- performance Butterfly valvesTighter, more reliable sealingWhat turns an ordinary Butterfly valve into a High-Performance Butterfly valve? Itbegins with an offset shaft and eccentric disc arrangement. This double offsetdesign transmits a camming action to the disc and swings the disc completely awayfrom the seat. Conventional Butterfly valves do not have this feature. This designeliminates wear points around the disc at the top and bottom of the seat, as well asthe resulting beading, scuffing, and ultimate tearing and leakage.

6 When closed, thedisc cams tightly into its seat to create a dependable tight Offset DesignThe unique sealing system also incorporatesa double eccentric disc and shaft design tofurther extend the effectiveness of the unique offset design transmits acamming action to the disc and swings thedisc completely away from the seat, nojamming or squeegeeing. This design elimi-nates wear points around the disc at thetop and bottom of the seat. When closed,the disc cams tightly into its seat to create adouble-tight seal. The combination of thedouble-offset disc and the flexible-lip seatare especially effective in a full range ofapplications from high vacuum (1x10-5 Torr) to 1480 psi ( bar).5 jamesbury VALVE SOLUTIONSE nergized Seat When the valve is shut, the disc slightlydeflects and the seat energizes.

7 Whileenergized, the seat s sealing surface isconstantly pushing against the edge of thedisc. Unique polymeric sealing providestrouble-free on Insert SideWhen pressure is on the insert side, pressureis applied under the seat lip, further amplify-ing the sealing force between the disc andthe on Non-Insert SideWhen pressure is on the non-insert side, thedisc moves into the seat. Due to the spheri-cal profile of the disc, the more the discmoves into the seat, the tighter the movement of the seat is limited bythe flexible lip, which contacts the bottomof the grooves in the insert VALVE SOLUTIONSE qually Suited to On-Off And Control ApplicationsCv Factors for Series 815 and 830 valves in Intermediate PositionsWafer-Spherebutterflyvalves accommodate avariety of pneumatic andelectric actuators for on-off service, as well as,pneumatic double-actingand spring-return actua-tors with positioners forcontrol service.

8 They offersuperior control character-istics, wide rangeability,and an inherent flow char-acteristic that is modifiedequal percentage. wafer -Spherevalves are equally suited to on-off and control seat ringPTFE seat insertBodyInsertBody7 jamesbury VALVE SOLUTIONSB efore FireDuring and After FireFire-Tite wafer -Spherevalves offer outstandingadvantages in providingreliable operation undernormal conditions as wellas during a fire. They arespecifically developed foruse in such industries aspetroleum refining anddistribution, chemical,marine and others. Themetal-seat ring effectivelystops flow through thevalve if the PTFE seat isdestroyed in a fire. Fire-Titevalves meet the require-ments of NACE and arequalified to API 607 Edition 4 and BS extra reliability for critical applicationsMetso products are qualified with intensecryogenic, fire, temperature and pressuretesting in our engineering and ( C)Temperature ( F)Permanent Deflection (in)Permanent Deflection (mm) ( C)Temperature ( F)Pressure (psi)Pressure (bar)

9 20426031682685441271408 jamesbury VALVE SOLUTIONSWhen combined with ourunique and application-proven seat designs,proprietary Xtremeseatingmaterials broaden wafer -Spherebutterflyvalves temperature andpressure Xtremeseats, applica-tion temperatures rangefrom -320 F to 500 F andpressuresup to 1480 permeability charac-teristics and controlledcrystallinity produce avalve seat which resistspermanent distortion. Thisresults in longer cycle life,better thermal cycleperformance, and betterpressure cycle performance boundariesTypical Seat RecoveryPermanent Deflection for 2500 ft lbs (3390 Nm) maximum loadTypical Pressure-Temperature RatingsXtremeFilled PTFEV irgin PTFEX tremeFilled PTFEV irgin PTFE9 jamesbury VALVE SOLUTIONSW afer-SphereSpecial servicesEmission-PakLive-LoadedPackingWh en enhanced emissions control is need-ed to comply with evolving emissionsstandards, Emission-Paklive-loaded packingis available.

10 The Emission-Paklive-loadedpacking assembly includes PTFE V-ring pack-ing live-loaded with disc spring washers forstandard construction valves and graphitepacking with Inconel disc springs for Fire-Titevalves to maintain a constant packing forcewithout overcompression. It is available withnew valves or as a retrofit kit for existingvalves. Additional options, available with orwithout the Emission-Paklive-loaded pack-ing, include double packing or doublepacking with monitoring port to facilitatetesting of the primary seal and allow detec-tion of a potential leak problem. Refer to theHow to Order section at the end of thisbulletin for specific ordering instructions. Theoperating torque of valves with Emission-Paklive-loaded packing will increase. (Refer tothe torque equation in the Valve Torque Datasection).