Models
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Aluminum Construction
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RFD
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Stainless Steel Construction
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RFDSS
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Price RFD/RFDSS Series Radial Flow
Diffusers represent a unique and effective
method of air distribution in critical high
volume applications. The Price RFD features
a patented design which effectively delivers
large volumes of air in confined spaces
with maximum comfort and low room air
velocities – a situation not always possible
with conventional air outlets or laminar
flow panels. Typical applications include
laboratories, cleanrooms, hospital rooms,
animal labs, kitchens, computer rooms etc.
Air Pattern
Most conventional ceiling diffusers are
designed to produce high aspiration rates
(mixing of supply and room air). This
requires high initial velocity jets from the
diffuser to induce the room air and achieve
mixing. At the large volumes required for
high air change rates, conventional diffusers
with high jet velocities produce long throws
and unacceptably high room air velocities.
Conversely, laminar flow (non-mixing)
diffusers typically have very low initial
velocities, and therefore, low induction of
room air and short throws. Typical laminar
flow diffusers produce a vertical air pattern
and have relatively low cfm capacity due
to sound and pressure drop considerations.
The Price RFD combines the best features of
both aspirating and laminar flow diffusers. Its
special perforated face produces low initial
face velocities, minimizing entrainment of
room air, while its radial shape and internal
baffles distribute large volumes of air in a
semi-cylindrical air pattern. This allows the
RFD to "flush" a room with large volumes
of low velocity, clean, conditioned air
while minimizing mixing with potentially
contaminated room air.
Performance and Practicality
The Price RFD diffuser is designed with both
performance and practicality in mind. In
addition to high capacity laminar air flows,
the RFD offers the serviceability mandatory
in today's cleanrooms, laboratories
and
hospitals.
The RFD features room-side access to the
interior of the diffuser for cleaning. The face
of the diffuser is attached to the backpan with
a hinge. The face is mounted on removable
wing-nuts, facilitating
the complete removal
of the diffuser face as required. A simple
but secure swing latch mechanism is used
to hold the diffuser's face in the closed
position. No tools are required to access the
interior of the RFD for cleaning. The swing
latch design also ensures that the backpan
will never have to be disturbed in the ceiling,
protecting its integrity.
The Price RFD has been engineered so that
there are no penetrations of the backpan,
other than the inlet collar, maintaining the
ceiling integrity while still allowing access
to the diffuser interior. The interior has no
plenum baffling that would prevent access.
The RFD/RFDSS border accommodates
both surface mounting and T-bar lay-in
installations.
Standard construction for RFD is an
aluminum perforated face and vanes with
an aluminum backpan. The entire unit is
finished in B12 white powder coat. The
model RFDSS is constructed primarily of
stainless steel.
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