Product Bulletin ENVIRO-SEAL Bellows Seal …

1 ENVIRO-SEAL Bellows seal BonnetsENVIRO- seal Bellows seal bonnets improve sealingcapabilities of Fisher valves and provide long life forapplications where emissions escaping from a valvestem seal to the atmosphere cannot be tolerated. Thisexcellent stem sealing system is available for Fishereasy-et valves (see the specifications table forinformation on valve designs and sizes).Corrosion resistance is excellent--the Bellows isavailable in either N06625 or N06022, and the bellowsis protected against direct impingement by the flowstream. The mechanically formed Bellows provideshigh operating reliability and extended cycle life, andthe large annular area around the Bellows optimizeswarming by the process Excellent Sealing Capabilities are FactoryTested Every Bellows seal is tested before leavingthe factory.

2 Each Bellows is mass spectrometertested to 1 X 10-6 cubic centimeters per second Long Cycle Life Cycle lives in excess of those shownin tables 1, 2, 3, and 4 can be achieved with properuse and Easy Installation in Existing valves All parts neededto install the system in existing valves are availablein a convenient Rugged Construction An anti-rotator pin helpsprevent accidental twisting and subsequentdamage and helps prevent stem blow out. Afull-length shroud protects the Bellows againstdamage during handling, inspection, ormaintenance. See the following Purging/Monitoring Connections areStandard Two connections above the bellowsallow for purging or monitoring of Bellows Bellows Detail(Mounted on easy-e VALVE)UPPERBUSHINGW5800-2 PACKINGANTI-ROTATORPINPURGE-MONITORINGCO NNECTIONPROTECTIVESHROUDBELLOWSVALVE PLUGCONNECTIONVALVE PLUGENVIRO- seal Bellows SealD101641X012 Product :070 September 2017 ENVIRO-SEAL Bellows SealD101641X012 Product :070 September 2017 2 SpecificationsApplicable Valve DesignsNPS 1/2 through 4 Fisher CL125 through 600 Jeasy-evalves (for example, EAT, EZ, ETR, etc.)

3 ,JYD, andJYS valvesCycle LifeSee tables 1, 2, 3, and 4 and the Cycle Life Bellows is available in Jone-ply or Jtwo-plyconstruction for higher pressures and longer cycle lifePressures and Temperatures(1)See tables 5 and 6. Do not exceed thepressure-temperature rating of the valve or themaximum temperature of the packing and gasketsFactory Testing SpecificationEvery Bellows is tested to 1 X 10-6 cubic centimetersper second of heliumBellows seal Travel (Also See Cycle Life Section)See table 7 Construction MaterialsSee table 10 Material Temperature Capabilities(1)Standard Packing:MaterialIn-Body ProcessTemperature Limits(2)Temperature Limitsof the PackingMaterialPTFE and PTFE/Composition-46 to 427_C(-50 to 800_F)-40 to 232_C(-40 to 450_F)Graphite Ribbon/Filament-46 to 593_C(-50 to 1100_F)-18 to 538_C(3)(0 to 1000_F(3)) ENVIRO-SEAL Packing: See Bulletin .

4 061 ENVIRO-SEAL Packing Systems for Sliding-StemValvesBellows Gasket: Graphite Laminate -254 to 593_C (-425 to 1100_F)Valve Components: See the valve bulletinApplicable Stem and Yoke Boss DiametersSee table 11 Maximum Flow CoefficientsSee table 7 Bellows Spring RateNegligible for actuator sizing and selection purposesBellows Effective AreaWhen sizing an actuator, use the Bellows effectivearea instead of the valve stem areaNPS 1/2 through 2 valves : cm2 ( squareinches)NPS 3 and 4 valves : cm2 ( square inches)DimensionsSee figure 2 OptionsJRetrofit kits for installation in existing packing systems (figure 1) with PTFE,Graphite ULF, or Duplex packing materials; seeBulletin :0611.

5 The pressure-temperature limits in this Bulletin , in the valve Bulletin , and any applicable code or standard limitation, should not be These in-body process temperatures assume an outside, ambient temperature of 21_C (70_F).3. Limit to 371_C (700_F) on oxidizing Bellows SealD101641X012 Product :070 September 2017 3 Cycle LifeBellows seal service life is affected by several factors,including pressure, temperature, and travel. The cyclelife values listed in tables 1, 2, 3, and 4 are determinedfrom experimental data and reflect a 99% confidencefactor. These cycle life estimates do not include effectsfrom vibration in the piping Bellows are normally sold with the travellimited for optimum cycle life performance.

6 Bellowsmay be operated at full valve travel at reduced 1. Estimated Cycle Life for N06625 Bellows (1) at Bar (150 Psig) and 38_C (100_F)VALVE SIZE, NPSBELLOWS seal TRAVEL1/2, 3/4,1, &1-1 Ply8,000,0004,000,0001,400,000550,000150 ,00050,0002 Ply10,000,00010,000,0002,300,000800,0001 60,00050, Ply8,000,0004,000,0001,400,000550,000150 ,00050,0002 Ply10,000,00010,000,0002,300,000800,0001 60,00050, Ply1,000,0001,000,000700,000450,000300,0 00100,0002 Ply10,000,00010,000,0005,000,0002,500,00 01,000,000350, Ply1,000,000700,000450,000300,000100,000 50,0002 Ply10,000,0005,000,0002,500,0001,000,000 350,000150,0001. See the Cycle Life section in this Bulletin for more information on Bellows 2.

7 Estimated Cycle Life for N06625 Bellows (1) at Maximum Pressure and 316_C (600_F)VALVE SIZE, NPSBELLOWS seal TRAVEL1/2, 3/4,1, &1-1 Ply100,00080,00050,00030,00012,0007,0002 Ply100,00090,00050,00030,00012,0007, Ply100,00080,00050,00030,00012,0007,0002 Ply100,00090,00050,00030,00012,0007, Ply45,00045,00034,00024,00018,00012,0002 Ply50,00050,00041,00034,00024,00012, Ply45,00034,00024,00018,00012,0007,0002 Ply50,00041,00034,00024,00012,0007,0001. See the Cycle Life section in this Bulletin for more information on Bellows Bellows SealD101641X012 Product :070 September 2017 4 Table 3. Estimated Cycle Life for N06022 Bellows (1) at Bar (150 Psig) and 38_C (100_F)VALVE SIZE, NPSBELLOWS seal TRAVEL1/2, 3/4,1, &1-1 Ply8,000,0004,000,0001,200,000500,000110 ,00040,0002 Ply10,000,00010,000,0002,000,000650,0001 40,00040, Ply8,000,0004,000,0001,200,000500,000110 ,00040,0002 Ply10,000,00010,000,0002,000,000650,0001 40,00040, Ply1,000,0001,000,000700,000450,000300,0 00100,0002 Ply10,000,00010,000,0005,000,0002,000,00 0900,000300, Ply1,000,000700,000450,000300,000100,000 50,0002 Ply10,000,0005,000,0002,000,000900,00030 0,000130,0001.

8 See the Cycle Life section in this Bulletin for more information on Bellows 4. Estimated Cycle Life for N06022 Bellows (1) at Maximum Pressure and 316_C (600_F)VALVE SIZE, NPSBELLOWS seal TRAVEL1/2, 3/4,1, &1-1 Ply90,00080,00050,00030,00012,0006,0002 Ply100,00090,00050,00030,00012,0006, Ply90,00080,00050,00030,00012,0006,0002 Ply100,00090,00050,00030,00012,0006, Ply40,00040,00034,00024,00018,00012,0002 Ply50,00050,00040,00031,00023,00012, Ply40,00034,00024,00018,00012,0007,0002 Ply50,00040,00031,00023,00012,0007,0001. See the Cycle Life section in this Bulletin for more information on Bellows Bellows SealD101641X012 Product :070 September 2017 5 Table 5. Pressure-Temperature Rating for N06625 BellowsVALVE SIZE,NPSPRESSURE, BARTemp.

9 , _C38931492042603163714271/2, 3/4, 1, 1-1/2, and 21 Ply2 & 41 Ply2 SIZE,NPSPRESSURE, PSIGTemp., _F1002003004005006007008001/2, 3/4, 1, 1-1/2, and 21 Ply2 Ply5501000506920479870451820429780413750 4027303967203 & 41 Ply2 Ply3466253135752965442795122654882554692 48456245450 Table 6. Pressure-Temperature Rating for N06022 BellowsVALVE SIZE,NPSPRESSURE, BARTemp., _C38931492042603163714271/2, 3/4, 1, 1-1/2, and 21 Ply2 & 41 Ply2 SIZE,NPSPRESSURE, PSIGTemp., _F1002003004005006007008001/2, 3/4, 1, 1-1/2, and 21 Ply2 Ply5501000534970523950506920484880473860 4578304408003 & 41 Ply2 Ply3406253306063235943135752995502925372 82519272500 Figure 1. Typical ENVIRO-SEAL Packing SystemsPACKING BOXSTUDSPACKINGRINGSPRINGSANTI-EXTRUSION RINGLANTERNRINGA629039B4611-APACKING BOXSTUDSSPRINGSPACKINGFOLLOWERENVIRO-SEA L Bellows SealD101641X012 Product :070 September 2017 6 Table 7.

10 Flow Coefficients with ENVIRO-SEAL Bellows seal and easy-e ValvesVALVEDESIGNVALVESIZE,NPSBELLOWS SEALTRAVELFULL-SIZE TRIMRESTRICTED TRIMmmInchQuickOpeningLinearEqualPercent ageQuickOpeningLinearEqualPercentageCvED , EDR, ET,and ETR (Flow Down)11-1 (1) (2) (1) (2) - - - (1) (2) (1) (2)6411300239047407990559109021304130668 0325695107026905000- - -990112031704750- - -760111034904220- - -35778323704040ES (Flow Up)Cv1/23/411-1 (1) (2) (1) (2) - -- - - -- - - -- - -- - - -- - -- - - -- - -- - (1) (2) (1) (2)2064156881325241047808000- - -- - -565967210041006170- - -- - -367679109025404250- - -- - -- - -992135039906280- - -- - -- - -659105030604910- - -- - -- - -33471023204230EZ (Flow Up)Cv1/23 (1) (2) (1) (2) - -- - - -- - - -- - -- - - -- - -- - - -- - -- - (1) (2) (1) (2)1683414751250214044907940- - -- - -375921163034605860- - -- - -299417133024003770- - -- - -- - -72768731202910- - -- - -- - -38059927832979- - -- - -- - -30260524502570 Note: Bellows seal travel is 75% of maximum rated valve mm ( inch) travel for restricted mm ( inch) travel for restricted Bellows SealD101641X012 Product :070 September 2017 7 Table 8.