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Air Diffusion
MEMBRANE DIFFUSION® PROVIDES MAXIMIZED LAMINAR AIRFLOW!
- PROVIDES 100% UNIDIRECTIONAL AIRFLOW REGARDLESS OF NUMBER OF FILTERS!
- FOR USE IN ALL CLEANROOM APPLICATIONS (900+ SUCCESSFUL INSTALLATIONS)
- PHARMACEUTICAL COMPATIBLE ~ CAN BE AESEPTICALLY CLEANED.
- PROVIDES A VIRTUALLY FLUSH APPEARANCE.
- SIMPLE REMOVAL/INSTALLATION FOR ACCESSIBILITY.
- ENHANCED LAMINARITY PROVIDES IMPROVED CLEANLINESS CLASS!
LUWA MEMBRANE DIFFUSION® TECHNICAL DESCRIPTION
The secondary grid ceiling system creates a slight positive pressure which re-diffuses the air uniformly across the entire ceiling entrance plane. Virtually true laminar flow is delivered to the room regardless of filter variations or filter coverage, eliminating turbulent air flow as air travels from the entire ceiling plane.
Frequently Asked Questions
Below is a list of frequently asked questions regarding Luwa's patented Membrane Diffusion® ceiling system. Please contact us directly for more information regarding these panels, and the Luwa CG Series of diffusion panels. Complete guide specifications and independent test data are available upon request.
- Q 1: What is the membrane material?
- A 1: Woven polypropylene Monofilament.
- Q 2: What is the panel support system?
- A 2: MD Series - Membrane fabric is set on standard 2' x 4' acrylic eggcrate panels.
MLW Series - Membrane fabric is stretched tight onto an anodized aluminum frame.
MLP Series - Specifically designed for Biotech/Pharmaceutical application. Membrane fabric is stretched on both sides on an anodized aluminum frame with epoxy sealed edges. - Q 3: What panel sizes are available?
- A 3: Standard panels are designed to lay in a standard 2' x 4' acoustical 15/16" wide ceiling grid system. Special sizes are available for odd openings.
- Q 4: How are the panels manufactured and shipped?
- A 4: Panels are manufactured by Luwa in a class 100 cleanroom. Panels are bagged, crated, and shipped to the jobsite for installation into the ceiling grid.
- Q 5: What is the pressure drop?
- A 5: For uniform airflow, approximately 0.01" to 0.10" w.g.; can be user specified; and can be used to create zones of higher flow.
- Q 6: What are the fire characteristics?
- A 6: The membrane fabric is classified Class "A" product as defined by the ASTM E-84 fire test.
- Q 7: How are upper ceiling components accessed?
- A 7: Membrane panels lift out for access to HEPA/ULPA filters and lights.
- Q 8: How are openings and penetrations made in the membrane panels?
- A 8: Penetrations for sprinkler heads or conduits can be made almost anywhere in the membrane panel and finished off with standard escutcheons. Special sealing is typically not required.
- Q 9: What is the weight of standard membrane panels?
- A 9: MD Series - Approximately .44 lbs. per square foot.
(1 panel- nominal 2' x 4' = 3.40 lbs.)
MLW Series - Approximately .38 lbs. per square foot. (1 panel- nominal 2' x 4' = 3.0 lbs.)
MLP Series - Approximately .50 lbs. per square foot. (1 panel- nominal 2' x 4' = 4.0 lbs.) - Q 10: Can this system be used in pharmaceutical applications?
- A 10: Yes. This system has been used in many different pharmaceutical and medical device applications through the years, and may be cleaned using various products. We can provide information on the material of construction, so you may verify its compatibility with your cleaning product.
- Q 11: What is the difference between these Membrane Diffusion® panel systems and the Luwa CG® series system?
- A 11: The Luwa CG® series is basically the same as the MLP series described above. However, the Luwa CG® panels are manufactured in Switzerland. They include a welded anodized aluminum extruded frame with the fabric adhered to the frame.