Product Bulletin WhisperFlo Trim September 2017 …

1 WhisperFlo Aerodynamic Noise Attenuation TrimFisher WhisperFlo trim represents state of the artsolutions for applications that demand ultimate valves with WhisperFlo cages provideadditional attenuation for aerodynamic noise in verydemanding vapor or gas applications withhigh-pressure drops. A WhisperFlo cage with anappropriately sized valve body is designed to reducethe noise level up to -40 dBA. For special applications,-50 dBA attenuation can be High Performance Use of the WhisperFlo trimprovides excellent noise attenuation for verydemanding applications. It should be considered forthose applications that more conventional solutionscan't Easy Maintenance Quick change trim allows fastand easy inspection of the cage without taking thevalve body out of the line. WhisperFlo trim isinterchangeable with standard control valve Long trim Life Hardened materials or a uniquewear surface construction are standard to provideexcellent wear resistance. The three dimensionalflow path, pressure-staging, and special passageshapes uniquely combine to equalize High Capacity WhisperFlo trim has higher capacityat conventional valve travels and port sizes thantortuous path Simple Retrofit Standardized port sizes providecapability to retrofit existing CAGEW8916-1 VALVE WITH WhisperFlo AERODYNAMIC TRIMW hisperFlo TrimD102362X012 Product :010 September 2017 WhisperFlo TrimD102362X012 Product :010 September 2017 2 SpecificationsAvailabilityFor standard offerings, see table are also available for Fisher HP, EH, FB, andTBX valves.

2 Contact your Emerson sales office or LocalBusiness Partner for details. trim Material and SelectionJ316L Stainless Steel/R31233 Wear ResistantSurfaces (7-inch port and smaller only)J316L Stainless Steel/Chrome Coat Bore (11-inchport and larger)JN04400/R31233 Wear Resistant Surfaces (7-inchport and smaller only)JDuplex Stainless Steel/R31233 Wear ResistantSurfaces (7-inch port and smaller only)J4130 Alloy Steel/R31233 Wear Resistant Surfaces(7-inch port and smaller only)J410 Stainless Steel (all port sizes)JOther materials available per applicationSee appropriate valve Bulletin or contact yourEmerson sales office or Local Business Capability(1)J-73 to 593_C (-100 to 1100_F)JCryogenic cages for use to -198_C (-324_F) areavailable. Contact your Emerson sales office or LocalBusiness Partner for special information on specifyingCryogenic cagesJOthers per applicationSee appropriate valve Bulletin for complementaryinformationMaximum Pressure Drops(1)As shown in appropriate valve Bulletin , do not exceedthese limits.

3 WhisperFlo trim is available up toCL2500 and higherVelocity LimitsWhisperFlo trim is designed to control the throttlingnoise source in the control valve. A valve-outlet ordownstream velocity greater than MACH1 maycreate a second noise source. IEC 60534-8-3 noiseprediction will account for both sourcesFlow CharacteristicLinear (restricted linear cages and characterizedcages are available--consult your Emerson sales officeor Local Business Partner)RangeabilityVaries with 4 ET, level X: 30:1 NPS 24x20 EW, level X: 65:1 High rangeability in excess of 250:1 is available insome your Emerson sales office or Local BusinessPartner for detailsFlow DirectionFlow up--through the seat ring and out through thecage orificesNoise AttenuationApproximately -40 dBA maximum depending on thenP/P1 ratio per IEC 60534-8-3 calculation levels X, Y, and Z are useable up to maximumSizing CoefficientsSee Coefficients section in this Bulletin or Catalog 12, section 1 Shutoff ClassificationJClass IVJO thers per applicationSee appropriate valve bulletin1.

4 Do not exceed the pressure/temperature limits in this Bulletin . Any applicable standard or code limitations should not be TrimD102362X012 Product :010 September 2017 3 Table 1. Standard Fisher WhisperFlo Cages (Levels X, Y, and Z)VALVE TYPEVALVE SIZE(1)PORT DIAMETERMAXIMUM VALVE PLUG or 10X6(2) For a two-number valve size, the first number indicates nominal valve body size and the second number indicates nominal port NPS 10x6 has a valve outlet area identical to the NPS 1. Fisher WhisperFlo nP/P1 PRESSURE DROP RATIOINCREASING LpA (dB)LEVEL ZOPTIMUM ATTENUATIONTYPICAL SOUND PRESSURE TRENDS OF WhisperFlo TRIMSLEVEL YBALANCED CAPACITYAND ATTENUATIONLEVEL XOPTIMUM CAPACITYYYYYYYYYYYYYYYYYYYW hisperFlo TrimD102362X012 Product :010 September 2017 4 CoefficientsTable 2. Fisher WhisperFlo , X Level, Flow Up through the Seat Ring and out through the Cage OrificesWhisperFlo Level XLinearCharacteristicValveSize,NPSPortDi ameterMaximumTravelFlowCoeffi-cientValve Opening Percent of Total or10x6(1) (continued) WhisperFlo TrimD102362X012 Product :010 September 2017 5 Table 2.

5 Fisher WhisperFlo , X Level, Flow Up through the Seat Ring and out through the Cage Orifices (continued) WhisperFlo Level XLinearCharacteristicValveSize,NPSPortDi ameterMaximumTravelFlowCoeffi-cientValve Opening Percent of Total NPS 10x6 has a valve outlet area identical to the NPS 3. Fisher WhisperFlo , Y Level, Flow Up through the Seat Ring and out through the Cage OrificesWhisperFlo Level YLinearCharacteristicValveSize,NPSPortDi ameterMaximumTravelFlowCoeffi-cientValve Opening Percent of Total or10x6(1) (continued) WhisperFlo TrimD102362X012 Product :010 September 2017 6 Table 3. Fisher WhisperFlo , Y Level, Flow Up through the Seat Ring and out through the Cage Orifices (continued) WhisperFlo Level YLinearCharacteristicValveSize,NPSPortDi ameterMaximumTravelFlowCoeffi-cientValve Opening Percent of Total NPS 10x6 has a valve outlet area identical to the NPS 4. Fisher WhisperFlo , Z Level, Flow Up through the Seat Ring and out through the Cage OrificesWhisperFlo Level ZLinearCharacteristicValveSize,NPSPortDi ameterMaximumTravelFlowCoeffi-cientValve Opening Percent of Total or10x6(1) (continued) WhisperFlo TrimD102362X012 Product :010 September 2017 7 Table 4.

6 Fisher WhisperFlo , Z Level, Flow Up through the Seat Ring and out through the Cage Orifices (continued) WhisperFlo Level ZLinearCharacteristicValveSize,NPSPortDi ameterMaximumTravelFlowCoeffi-cientValve Opening Percent of Total NPS 10x6 has a valve outlet area identical to the NPS TrimD102362X012 Product :010 September 2017 8 Emerson Automation SolutionsMarshalltown, Iowa 50158 USAS orocaba, 18087 BrazilCernay, 68700 FranceDubai, United Arab EmiratesSingapore 128461 contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are notto be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales aregoverned by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of suchproducts at any time without 1998, 2017 Fisher Controls International LLC.

7 All rights , WhisperFlo , and easy-e are marks owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Automation Solutions, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the propertyof their respective Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenanceof any Product . Responsibility for proper selection, use, and maintenance of any Product remains solely with the purchaser and end user.