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DESIGN
The Fluid Kinetics HUSH PUP is a non-packed, reactive
silencer. It works by expanding the incoming flow through
many small holes. This expansion creates a reduction and a
frequency shift of the vent noise. By correct selection of
hole size, spacing and pattern this reduction can be
optimized to produce an overall quieting effect equal to
older style packed silencers. This simple, yet effective
silencing concept has been tested and proven in over 4,000
applications as a component part of Fluid Kinetics line of
vent silencers.
APPLICATION
The HUSH PUP can be used in any high pressure vent
application where a moderate degree of silencing is
required. Typical application include steam relief valve
discharge, air compressor vents, boiler blowdown lines,
gas plant vents and product dump vents.
ACOUSTIC PERFORMANCE
The HUSH PUP will provide a 15 to 20 dB reduction on most
vent applications. The attenuation curve shown is the
actual performance attained on a high pressure air vent
test. For more critical silencing application, the Fluid
Kinetics Blowoff Silencer is available.
MECHANICAL SPECIFICATION
All steel construction allows the handling of high
temperature gas or steam. Designed like a pressure vessel,
the HUSH PUP can be subjected to high pressure, high
impact flow with no problems. Hole sizes, equal or greater
than those of quiet trim valves, prevents clogging
problems encountered in some sintered metal type
silencers. The all-welded design provides years of
non-maintenance, trouble free service.
FEATURES
Download the catalog sheet in PDF format (405 KB)
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