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Cleanroom; Hardwall, Extended ValuLine, Clear Acrylic Panels, 8' x 20' x 8'

Terra Part #: 6600-21-VL-0820

Manufactured By: Terra Universal

Warranty: 1 year parts, 90 days labor

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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

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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.

Cleanroom LED Light Panel

LED panels mount flush on ceiling grid, have longer life, and use less energy (emitting less heat) than conventional fluorescent lights.

Aluminum Frame Swing Door

Light-weight, easy to install, and includes concealed pneumatic door closer.

Terra Universal

Laboratory-Equipment

Terra Universal

Laboratory-Equipment

Cleanroom; Hardwall, Extended ValuLine, Clear Acrylic Panels, 8' x 20' x 8'

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Manuals & Resources

Manual [pdf]

ValuLine Hardwall Cleanroom

Features and Benefits

WhisperFlow Cleanroom Fan Filter Units

Cleanroom LED Light Panel

Aluminum Frame Swing Door

Information & Resources

About Terra