Fan filter
diffusers (FFD) were introduced to the market in 1984 as a new solution in
cleanroom applications. In situations where the use of conventional ducted
modules is impractical or the air supply has insufficient static pressure to
move the air through a HEPA filter, fan filter diffusers provide an excellent
alternative.
In cleanroom
design, the primary factor is contaminant removal and the cleanliness level, so
moving the air is a major challenge. The volume of recirculated HEPA filtered
air, including conditioned air to handle high cooling loads that are typical of
many cleanrooms, can range from less than twenty to more than five-hundred air
changes per hour. Fan filter diffusers are designed to address this situation
by producing a laminar or unidirectional flow of clean air traveling downward
at a velocity of 90-feet per minute, as measured 6” below the filter face.
Cleanroom
manufacturing processes require a high level of air filtration to protect the
raw materials and the end product from particulates that can damage the product
or cause it to fail in use. Utilizing fan filter diffusers in cleanrooms
prevents the infiltration of contaminants and also provides for the removal of
particles generated by people and equipment in the work space. Typical
cleanroom applications that utilize fan filter diffusers include:
- Semiconductor Manufacturing
- Pharmaceutical Manufacturing
- Medical and Dental Device Manufacturing
- Digital Device Manufacturing
- Food Processing Plants
- Computer Manufacturing
Titus’ Fan Filter Diffusers … Low Energy, Low Sound and Low Profile
Titus offers
a complete line of fan filter diffusers that can be used for new design or
upgrading existing cleanroom environments. Each Titus FFD is a self-contained
fan filter module that includes HEPA or ULPA filter, pre-filter, and fan speed
control. Air circulation is maintained by using a lightweight, forward-curved
fan, powered by a 120V or 277V 60Hz motor. Motor speed is adjusted by the
solid-state speed control that is mounted on the top of the housing. Patented
baffling technology ensures uniform airflow across the filter face and
attenuates sound for one of the quietest fan filter diffusers in the industry.
The room side replaceable option (R) provides quick and efficient replacement
of the HEPA or ULPA filter while the diffuser remains in place. Room side
replaceable diffusers are ideal for plenum areas with limited space or
applications that require frequent filter changes.
Titus’ fan
filter diffusers are also available with an electrically commutated motor (ECM)
option. These units dynamically adjust themselves to maintain the set airflow,
compensating for changes in static pressure, filter loading or other local
conditions. Titus fan filter diffusers with an ECM can easily maintain
cleanroom air levels exceeding the Institute of Environmental Sciences and
Technology’s recommended practices. Airflow is maintained so constantly and
consistently that the need for future balancing is greatly reduced. The ECM
option, along with the patented baffling system and forward curve fan, makes
Titus fan filter diffusers intelligent, energy efficient and ultra-quiet.
Titus’ Fan Filter Diffuser Models:
·
FFD
- Standard construction, PSC motor, HEPA or ULPA filters, 2’ x 2’, 3’ x 2’, 4’ x 2’ sizes
·
FFDE
- Standard construction, ECM motor, HEPA filter, 2’ x 2’, 3’ x 2’, 4’ x 2’ sizes
·
FFDR
- Room side replaceable filter, PSC motor, HEPA filter, 2’ x 2’, 3’ x 2’, 4’ x 2’ sizes
·
FFDER
- Room side replaceable filter, ECM motor, HEPA filter, 2’ x 2’, 3’ x 2’, 4’ x 2’ sizes
·
FFDRA
- Room side replaceable filter and PSC motor, HEPA filter, 2’ x 2’, 3’ x
2’, 4’ x 2’ sizes
·
FFDERA
- Room side replaceable filter and ECM motor, HEPA filter, 2’ x 2’, 3’ x
2’, 4’ x 2’ sizes
Please direct questions toward Titus Communications (communications@titus-hvac.com) and/or Titus' CB/Critical Environment Product Manager Matt McLaurin (mmclaurin@titus-hvac.com).
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