Features

• Use of WhisperFlo trim provides excellent noise attenuation for very

demanding applications. It should be considered for those applications

that more conventional solutions cannot reach.

• Quick change trim allows fast and easy inspection of the cage without taking 

the valve body out of the line. WhisperFlo trim is interchangeable

with standard control valve trim.

• Hardened materials or a unique wear surface construction are standard

to provide excellent wear resistance. The three dimensional flow path,

pressure-staging, and special passage shapes uniquely combine to equalize energy dissipation.

• WhisperFlo trim has higher capacity at conventional valve travels and

port sizes than tortuous path designs.

• Standardized port sizes provide capability to retrofit existing valves.

Specifications

Critical Service Noise Abatement

Flow Characteristics Linear

Other Configurations Contact your local Emerson business partner or sales office

to learn about additional specifications or options for this product.

Features

• The Whisper Trim I cage offers excellent noise reduction and high flow capacity.

This combines with the well-known control and durability offered by standard

Fisher easy-e™ trims to give optimum overall performance at a minimum investment.

• Use of a Whisper Trim I cage in a properly sized valve can result in up to 18 dBA

noise reduction compared to the same valve with standard trim.

An 18 dBA reduction in noise represents approximately 98 percent reduction in sound intensity.

This is simila

• Quick change trim allows fast and easy inspection or replacement of the cage without

taking the valve body out of the pipeline. It is interchangeable with the cages in all standard easy-e

control valve bodies.

• Hardened material is standard to provide exceptional wear resistance.

Product Description

Fisher Whisper Trim I cages offer proven aerodynamic noise control

that is effective for vapor, gas, or steam flow applications.

The Whisper Trim I cage utilizes multiple orifices of a special shape, size,

and spacing to minimize noise generated by the flow of vapor, gas,

or steam through a control valve. Using a Whisper Trim I cage,

in conjunction with a properly sized valve body, can substantially

reduce the noise level below that of valves with standard trim.

Specifications

Critical Service Noise Abatement

Flow Characteristics Linear

Other Configurations Contact your local Emerson business partner

or sales office to learn about additional specifications or options for this product.

Product Description

Whisper Trim III cages provide effective attenuation of aerodynamic noise in vapor, gas,

or steam applications involving high pressure drops or high pressure drop ratios.

Using a Whisper Trim III cage in conjunction with a properly-sized valve body

can substantially reduce the noise level of the control application.

Aerodynamic noise is generated by the turbulence created in the flow of

vapor, gas, or steam as the fluid passes through a control valve.

Specifications

Critical Service Noise Abatement

Flow Characteristics Linear

Other Configurations Contact your local Emerson business partner or sales office to

learn about additional specifications or options for this product.

Features

• Use of a Whisper Trim III cage in a properly sized valve can result in a noise reduction

up to 30 dBA compared to the same valve with standard trim.

Such a reduction would be similar to the reduction in noise level noticed when moving away from the

noise

• Whisper Trim III cages provide excellent noise reduction and high flow capacity

with the proven control and durability offered by standard Fisher valve trims.

The result is optimum overall performance at a minimum investment.

• Quick change trim allows fast and easy inspection of the cage without

taking the valve body out of the pipeline.

Whisper Trim III is interchangeable with standard control valve trim.

• Hardened materials of construction are standard to provide exceptional wear resistance.

Features

• Broadband Noise Reduction — Patented design with internal acoustic cavities of varying

sizes reduce noise across a broad range of frequencies.

• Application Versatility — Designed for a wide range of fluid flow rates, pressures and temperatures.

Reduce noise inside the pipe for all sources upstream.

Pair the WhisperTube with any equipment used in compressible fluid service.

• Maximize Flow Capacity — Negligible pressure drop across the WhisperTube other than the normally

expected line loss for a pipe spool piece of equivalent length equates to noise attenuation with no impact

on process flow.

• Passive Reactive Silencer — Internal cavities produce acoustic wave reflections that reduce noise

propagating downstream.

• Reliable Performance — No internal acoustic packing material to fail from moisture absorption.

Cast internal drain channel ensures any potential liquid buildup can be removed, ensuring optimum

performance.

• Compatible with Piggable Systems — Straight through flow geometry with inside diameter

 that matches the pipe accommodates pigging operations when required for cleaning and maintenance.

• Sour Service Capability — NACE MR0103. MR0175 / ISO 15156 compliant materials of construction 

as standard for applications involving sour gas or vapor.

• Quick and Easy Maintenance — Removeable cylindrical stainless steel screen

for easy cleaning if required with no special tools needed.

• Easy Installation — Threaded lifting provisions accommodate fitting the body with hoist rings

or lifting eye bolts for optimized product control during installation.

Product Description

The WhisperTube is a passive reactive silencer designed for installation downstream

of the control valve or other equipment contributing to system noise.

Requiring negligible pressure drop across the device, the WhisperTube achieves system

noise reduction across a wide range of conditions without impacting the flow capacity or process.

Specifications

Body Sizes NPS 2. 3. 4. 6. 8. 10 and 12

Critical Service Noise abatement

End Connection Styles CL150. CL300. or CL600 raised-face flanges compatible with ASME B16.5

Temperature Capability -46 to 371°C (-50 to 700°F)

The Fisher easy-e ET valve is your solution for all general applications with

high process temperatures, featuring a balanced plug design and cage-guided trim.

Specifications

Certifications SIL capable, Fugitive Emission, NACE

Critical Service Noise Abatement, Cavitation, Steam Condition, Erosive, Low Flow,

Corrosive, General Service, Outgassing, Flashing

Flow Characteristics Equal percentage, Linear, Special Characterization, Quick Opening

Material Carbon Steel, Stainless, Duplex, Alloy

Operating Temperature Standard Temperature

Pressure Class PN, ASME

Process Connection Type Flanged, Butt Weld, RTJ, Threaded, Socket Weld

Shutoff Class Class IV (FCI 70-2), Class V (FCI 70-2), Class VI (FCI 70-2)

Valve Size NPS 1 through NPS 30

Valve Size Standard NPS, DN

Other Configurations Contact your local Emerson business partner or sales office

to learn about additional specifications or options for this product.

Product Description

The Fisher easy-e ET valve is your solution for all general applications with

high process temperatures, featuring a balanced plug design and cage-guided trim.

Available in globe or angle body, these valves can provide up to Class V or VI shutoff.

Features

• ENVIRO-SEAL™ packing systems that provide an improved stem seal to help prevent

the loss of process fluid are available. These packing systems feature PTFE or Graphite

ULF packing with live-loading for reduced packing maintenance.

• Controlled compression of standard seat construction protects PTFE disk between metal

disk seat and disk retainer. Excellent shutoff is maintained by a backup ring or

spring-loading that forces the valve plug seal ring against the cage.

• Rugged cage guiding provides high valve plug stability,

which reduces vibration and mechanical noise.

• Increased wear resistance of hardened stainless steel trim means longer-lasting service.

• Valves are available with dimensions specified by EN/DIN standards.

• Unless otherwise noted, references are to NACE MR0175-2002. Optional materials are

available to meet NACE MR0103 and NACE MR0175 / ISO 15156.

For further guidance on selecting materials, refer to the Magnetic

Flowmeter Material Selection Guide located on Rosemount.com

(Technical Data Sheet Number 00816-0100-3033).

For more information regarding product offering and ordering information,

refer to “Ordering information” on page6 in this product data sheet.

 Industry leading performance with standard reference accuracy of 0.25%

of rate with an optional High Accuracy of 0.15% of rate

 Rosemount 8732 Transmitter – Integral-mount design, backlit display,

and explosion-proof housing. Available with HART®, FOUNDATION™ fieldbus,

or PROFIBUS PA, Device Diagnostics, and Smart™ Meter Verification to improve

reliability and performance

 Rosemount 8712 HART Transmitter – available with Device Diagnostics including

Smart Meter Verification to improve reliability and performance.

Quick setup with easy-to-use local operator interface

 Rosemount 8712H/8707 High-Signal System – Pulsed DC solutions for

the most demanding flow measurement applications

 Rosemount 8705 Flanged sensor – Fully welded sensor for maximum protection

 Rosemount 8711 Wafer sensor – Economical, compact, and lightweight sensor,

provided with alignment spacers for easy installation

 Rosemount 8721 Hygienic sensor – Specifically designed for food, beverage,

and life sciences applications

Product selection guide

Several sensor types, liner types, electrode materials, electrode types,

grounding options, and transmitters are available for the Rosemount

8700 Series Magnetic Flowmeter System to ensure compatibility with

virtually any application and installation. See Table 16 for information

on liner types, Table 17 for information on electrode materials and

electrode types, Table 18 and Table 19 for grounding options and

installation, and Table 1 for transmitter selection.

Other material options not mentioned here may be available.

Contact your local sales representative for alternative material selection.

For further guidance on selecting materials, refer to the Magnetic

Flowmeter Material Selection Guide located on Rosemount.com

(Technical Data Sheet Number 00816-0100-3033).

For more information regarding product offering and ordering information,

refer to “Ordering information” on page6 in this product data sheet.