• Frame Material: Powder-Coated Steel
• Height: 8'
• Depth: 20'
• Width: 8'
• Overall Dimensions: 8' x 20' x 8'
• Panel Material: Clear Acrylic
• Unit of Measure: EA
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Cleanroom; Hardwall, Extended ValuLine, Clear Acrylic Panels, 8' x 20' x 8'
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Terra Part #: 6600-21-VL-0820
Manufactured By: Terra Universal
Warranty: 1 year parts, 90 days labor
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Want a quote quickly ?
Submit a QuickQuote request Static-Dissipative PVC vs. Acrylic 
Compared to acrylic, static-dissipative PVC offers three benefits that reduce operating expenses and drive down overall ownership cost of a clean room, glove box, hood, desiccator, or other enclosure.
The resulting static cling makes it difficult to remove contaminants from the charged surfaces without the use of ionizing equipment or frequent cleaning with special anti-static solutions. Variations in the surface charges can lead to unpredictable release of aggregated particles, threatening contamination-sensitive material.
For this reason, expect acrylic to drive up the cost of keeping an acrylic enclosure contamination-free. 
An aseptic environment requires frequent sterilization with disinfectants such as alcohol. Unfortunately, most common biocides, including industry-standard IPA solutions, degrade acrylic, causing cracks and discoloration.
Static-dissipative PVC, on the other hand, resists alcohol and most other sterilizing solutions, supporting standard disinfecting procedures and extending the life of your enclosure.
Acrylic’s most serious hidden cost becomes apparent when static-sensitive materials are destroyed or degraded by unpredictable electro-static discharge (ESD).
Whether it results from hand-wiping the acrylic surface or from the micro-frictional effects of a strong airflow, surface static charge poses serious threat to semiconductor, electronics, and other sensitive materials. In fact, acrylic supports the accumulation and discharge of up to 20,000 volts. This danger is especially acute in a low-humidity environment like a nitrogen-purged glove box or desiccator.
In critical applications, however, acrylic should be avoided. Lower total ownership costs – due to easier cleaning, sterilization, and ESD control – quickly justify the initial expense of a static-dissipative PVC enclosure.
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Hidden Costs of Acrylic Enclosures
Compared to acrylic, static-dissipative PVC offers three benefits that reduce operating expenses and drive down overall ownership cost of a clean room, glove box, hood, desiccator, or other enclosure. Contamination Control
Acrylic is a prolific static generator. The back-and-forth motion of wiping an acrylic surface creates positive and negative surface charges that attract and hold small particles.The resulting static cling makes it difficult to remove contaminants from the charged surfaces without the use of ionizing equipment or frequent cleaning with special anti-static solutions. Variations in the surface charges can lead to unpredictable release of aggregated particles, threatening contamination-sensitive material.
For this reason, expect acrylic to drive up the cost of keeping an acrylic enclosure contamination-free.
Don't Turn Your Clean Enclosure into a Particle Magnet! Non-dissipative plastics quickly accumulate surface charges that attract contaminants. If the panel on the left clings to this many test spheres, just imagine how many micro-particles it attracts!
Germ Control
An aseptic environment requires frequent sterilization with disinfectants such as alcohol. Unfortunately, most common biocides, including industry-standard IPA solutions, degrade acrylic, causing cracks and discoloration.Static-dissipative PVC, on the other hand, resists alcohol and most other sterilizing solutions, supporting standard disinfecting procedures and extending the life of your enclosure.
ESD Control
Acrylic’s most serious hidden cost becomes apparent when static-sensitive materials are destroyed or degraded by unpredictable electro-static discharge (ESD). Whether it results from hand-wiping the acrylic surface or from the micro-frictional effects of a strong airflow, surface static charge poses serious threat to semiconductor, electronics, and other sensitive materials. In fact, acrylic supports the accumulation and discharge of up to 20,000 volts. This danger is especially acute in a low-humidity environment like a nitrogen-purged glove box or desiccator.
Why Consider Acrylic?
Despite these disadvantages, acrylic is widely used in clean rooms and other critical environment applications. Its low initial cost, light weight, transparency, and strength make it an attractive choice in many situations, and Terra offers most of its enclosures in acrylic in order to provide a competitive option.In critical applications, however, acrylic should be avoided. Lower total ownership costs – due to easier cleaning, sterilization, and ESD control – quickly justify the initial expense of a static-dissipative PVC enclosure.
Terra Part # 6600-21-VL-0820
$18,858
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Accessories related to Terra Part # 6600-21-VL-0820
65512
Cleanroom; Hardwall, Extended ValuLine, Clear Acrylic Panels, 8' x 20' x 8'
• 7'H available upon request, but not stocked
• Customize ISO class
• COMPONENTS INCLUDED:
• Steel frame – posts and beams of 2” (51 mm) square tubing, powder coated
• Steel ceiling grid – joists and cross members 3” (76 mm) T-bars
• (2) Acrylic swing doors, each mounted on opposing walls
• Crate, wood
• ACCESSORIES INCLUDED:
• LED Light Modules – 48 W, 4500 lumens, 120-277 VAC, as required to meet rating
• Power Supply Unit – Switched supply to six-receptacle unit, 20W 120 VAC, as required to power FFUs and lights
• Ceiling Panel -- 2' x 4' and 2' x 2', polypropylene, white, as required to complete ceiling grid
• Order number of HEPA Fan/Filter Units separately to meet desired ISO cleanliness rating
• All electrical components UL and UL-C listed
• Requires UL Listing Declaration (order separately) for customized cleanroom electrical system, which helps meet municipal and other permitting requirements that may apply
• Formed by combining two 8'W x 10'D cleanrooms, with swing door entries on opposite sides
• Frame Material: Powder-Coated Steel
• Height: 8'
• Depth: 20'
• Width: 8'
• Overall Dimensions: 8' x 20' x 8'
• Panel Material: Clear Acrylic
• Unit of Measure: EA
• Dimensions, Product: 96" W x 240" D x 96" H
• Weight, Shipping: 2,249 lb
• Dimensions, Shipping: 133" W x 70" D x 41" H
• Package Type: Crate
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Features and Benefits
Valuline vs. Standard Cleanrooms
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How are Terra Universal’s ValuLine and standard cleanrooms different? Is the standard line cleaner?
Ordering Information
Both cleanroom lines meet the same quality standards for design and materials while also providing essentially the same airflow, which is based on the configuration of fan/filter units.
However, Terra’s standard cleanrooms utilize Power Distribution Modules, which can accommodate more FFUs and light fixtures than the basic power supply included on ValuLine cleanrooms. PDMs also feature quick-connect fittings and a better control panel. ValuLine cleanrooms do not include the decorative top trim and status indicator lights included on standard line cleanrooms.
Each standard line cleanroom is built-to-order, can be made in virtually any reasonable size and can use alternative materials such as stainless steel frames. ValuLine cleanrooms are preconfigured from standard components to produce ten standard sizes from 6’ x 6’ up to 12’ x 12’ in each of two heights (7’ and 8’), allowing shorter lead times.
Fan / Filter Units with HEPA Filter
| Model | Nominal Dimensions* Inches (mm) | Avg. CFM @ MS (m3/h) | High speed Airflow FT/min(m/s) | Medium speed Airflow FT/min(m/s) | Low speed Airflow FT/min(m/s) | High speed Run Amps (watts) @ 60Hz | Medium speed Run Amps (watts) @ 60Hz | Low speed Run Amps (watts) @ 60Hz |
|---|---|---|---|---|---|---|---|---|
| 2 x 4 | 23.63 x 47.63 x 13 (600 x 1210 x 332) | 717 (1218) | 115 (.58) | 102 (.51) | 93 (.47) | 4.3A (512W) | 3.5A (416W) | 3.3A (393W) |
| 2 x 3 | 23.63 x 35.63 x 13 (600 x 905 x 332) | 602 (1023) | 121 (.61) | 116 (.59) | 106 (.54) | 4.1A (500W) | 3.1A (378W) | 2.7A (329W) |
| 2 x 2 | 23.63 x 23.63 x 13 (600 x 600 x 332) | 558 (948) | 172 (.87) | 166 (.84) | 162 (.82) | 3.9A (472W) | 2.8A (339W) | 2.4A (290W) |
WhisperFlow® Cleanroom Fan Filter Units
Design features internal baffling and an aluminum diffuser to provide quiet operation along with uniform air speed for ISO-compliant laminar flow.
Aluminum Frame Swing Door
Light-weight, easy to install, and includes concealed pneumatic door closer.
Cleanroom LED Light Panel with Emergency Power Supply, 2' x 2'
Cleanroom LED lights are equipped with emergency back-up batteries to ensure continued operation in the event of a power failure.
Cleanroom LED Light Panels
LED panels mount flush on ceiling grid, have longer life, are more energy efficient, and emit less heatn conventional fluorescent lights.
HEPA Fan Filter Unit with Integrated LED Light and Ionizer
FFU with built-in LED and ionizing bar provides HEPA filtered air and neutralization of static charges. Removable filter is accessible from inside the hood/cleanroom for easy replacement and servicing. Includes internal baffling plate and diffuser panel.
Long Running FFU Motors
Terra’s filter fan unit motors are rated for 5 years of continuous, 24/7 operation, if the HEPA filters are consistently replaced. To accurately monitor your HEPA filter’s saturation levels, purchase Terra’s audible and visual filter replacement alarm system.
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