Brochure

6010 Inline Diffuser
6011 Inline Diffuser
Whisper Disk Inline Diffuser
The Silent Treatment | 15
offers noise attenuation in vapor, gas, or steam
applications. A diffuser places back pressure on
the control valve, thereby reducing the turbulence
and pressure drop across the valve, which
are main contributors in damaging noise and
vibration. When paired with a Fisher control valve
and Whisper Trim cage, the resulting solution is
one that will provide the greatest level of noise
attenuation for the most severe application.
Specially-designed flow passages featured in all
three Fisher diffusers provide a custom-engineered
product. Furthermore, these diffusers can be placed
at almost any point in the pipe; they do not need to
be placed immediately after a control valve.
n Up to 50 dBA of system noise attenuation
n ASME Class 150–2500
n The Fisher 6010 has inlet and outlet connections
(available in sizes up to NPS 72)
n The Fisher 6011 has a wafer flange mounting
(available in sizes up to NPS 48)
n The Fisher Whisper Disk is a flat plate (available in
sizes up to NPS 36)
n Customized flow characteristic for your
specific application
PRODUCTION: Co-generation for a process plant
APPLICATION: Steam letdown
CHALLENGE: The previous control valve experienced damage from high pressure and temperature
steam letdown.
SOLUTION: Fisher HP control valve with a Whisper Trim III cage paired with a Fisher 6010 inline diffuser.
RESULTS: Staged pressure drop on the valve and diffuser effectively reduced the noise and vibration.
PROVEN RESULTS
Fisher
®
Inline Diffuser