PORTA-FAB
Frequently asked questions
Common questions about PORTA-FAB from 3G Electric.
What sizes are available in the PORTA-FAB modular cleanroom line?
The PORTA-FAB cleanroom series covers interior areas from 64 sq ft to 800 sq ft. Specific part numbers include 8CR88 (8 ft x 8 ft, 64 sq ft), 8CR812 (12 ft x 8 ft, 96 sq ft), 8CR1010 (10 ft x 10 ft, 100 sq ft), 8CR1212 (12 ft x 12 ft, 144 sq ft), 8CR1224 (24 ft x 12 ft, 288 sq ft), 8CR1232 (32 ft x 12 ft, 384 sq ft), 8CR1632 (32 ft x 16 ft, 512 sq ft), and 8CR2040 (40 ft x 20 ft, 800 sq ft). All units in this series have a 10 ft height and steel wall panels.
What does the STC 31 rating mean on PORTA-FAB cleanrooms?
STC 31 is the Sound Transmission Coefficient rating for the PORTA-FAB cleanroom wall assembly. It indicates the degree to which the steel-walled structure attenuates airborne sound between the interior and exterior. A higher STC value corresponds to greater sound isolation. STC 31 is consistent across the PORTA-FAB cleanroom part numbers listed in the 3G Electric catalog, so acoustic performance is uniform across the size range. This rating is relevant when the enclosure must limit noise transfer to or from adjacent production areas.
Are PORTA-FAB cleanrooms shipped assembled or unassembled?
PORTA-FAB cleanrooms in the 3G Electric catalog are supplied unassembled. The steel wall panels, framing, and associated components are shipped as a kit for on-site erection. This format allows the structure to be transported through standard doorways and service corridors and assembled inside existing facilities. Buyers should plan for site preparation, panel handling, and integration of any air-handling, filtration, or environmental-control equipment required to achieve the target cleanliness class, since those systems are specified separately from the enclosure itself.
What applications are PORTA-FAB steel-walled cleanrooms used for?
PORTA-FAB cleanrooms provide a controlled physical envelope for manufacturing, assembly, testing, and inspection operations where airborne particle levels, temperature, or humidity must be regulated. The steel wall construction and STC 31 rating also make the enclosures suitable for applications requiring noise isolation between the cleanroom interior and surrounding plant areas. Typical uses include electronics assembly, precision mechanical work, quality-control inspection, and laboratory or pilot-scale process work. The required cleanliness class determines the filtration and pressurization equipment specified alongside the enclosure.
How does 3G Electric support PORTA-FAB cleanroom orders?
3G Electric lists PORTA-FAB cleanroom SKUs with manufacturer part numbers, interior dimensions, wall material, and sound transmission ratings so engineering and procurement teams can match an enclosure to a defined area and acoustic requirement. 3G Electric coordinates global supply and logistics for PORTA-FAB orders and provides documentation support for the cataloged part numbers. Buyers should confirm door and window locations, utility penetrations, and the intended cleanliness class before ordering, as these factors affect the supporting environmental-control equipment.
What is the ceiling height of PORTA-FAB modular cleanrooms?
The PORTA-FAB cleanroom part numbers in the 3G Electric catalog, including 8CR88, 8CR812, 8CR1010, 8CR1212, 8CR1224, 8CR1232, 8CR1632, and 8CR2040, all have a 10 ft height. This uniform height simplifies comparative evaluation across the size range and allows consistent integration with overhead utilities, lighting, and air-handling components. Buyers should verify available ceiling clearance and access routes at the installation site, since the unassembled panels are erected on site and the finished structure requires 10 ft of vertical space.
