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.
Compatible with ValuLineâ„¢ Hardwall Modular Cleanrooms
Connects by aligning the left side wall of both the cleanroom and gowning room together
Terra's ValuLineâ„¢ static-dissipative PVC-paneled gowning rooms feature the same cleanliness, strength and durability of powder-coated steel frames, and modularity as Terra's standard cleanrooms. ValuLineâ„¢ rooms reduce costs with simple on-off power supply units and without the top trim and power status indicators on Standard line rooms.
COMPONENTS AND ACCESSORIES INCLUDED:
Powder-coated 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
Acrylic wall and door panels
(1) Door, cleanroom with door closer – 36" x 81", powder-coated aluminum door frame, UL leak-rated (6710-14A-L-PC)
(1) LED Light Module – 4000 lumens, 5 color temps, 40 W, 120-277 VAC (3800-41C-VL)
(1) Power Supply Unit – Switched power to six FFU/light receptacles, 20W 120 VAC (6600-20B-VL) (Not on model)
Ceiling Panels -- 2' x 4', white polypropylene as required to fill ceiling grid
OPTIONAL ACCESSORIES DISPLAYED ON MODEL:
HEPA Fan/Filter Units to meet desired ISO cleanliness rating (ISO 7-8 shown on model)*
Top trim with power status indicator indicators*
* These items are shown on 3D model, but are not included in base price
All electrical components are UL and UL-C listed
Electrical system UL Listing Declaration available (order separately), to help meet permit requirements
Rooms ship disassembled with assembly instructions. Two assemblers make the process easier
FFUs and lights plug into Power Supply Units. Power Supply Units plug into US wall receptacles. Each PSU provides ceiling power and a non-switched GFI outlet on a wall post and requires a dedicated 20 A circuit.
FFUs add 13" (330 mm) overhead to height. Additional 9" to 11" (230 to 280 mm) clearance is required for air flow and installation. Total clearance required above filter face is 22" to 24" (560 to 610 mm)
Ships palletized to fit through 36" doorway. Forklift, lift gate and pallet jacks may be required
Terra assumes no responsibility for meeting local building regulations, including fire and seismic codes
Check your local planning department for regulations applying to your installation
Watch Terra's Portable HEPA Filtration System Video
ValuLine Hardwall Cleanroom Installation
Terra's in stock portable HEPA filtration systems provide high quality and medical grade air filtration for your ambient environment.Watch Terra's Portable HEPA Filtration System VideoThe mobile/ self contained filtration system converts to any room to a negative pressure isolation room which then makes it well suited for medical clinics, schools, waiting rooms and other confined areas.
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. CFMÂ @ 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 13Â (600 x 600 x 332)
558 (948)
172 (.87)
166 (.84)
162 (.82)
3.9A (472W)
2.8A (339W)
2.4A (290W)
Accredited Technical Cleanroom Expertise
We are committed to provide our clients with a full service solution, from project planning through engineering, product design, manufacturing, procurement, shipping, installation, validation, commissioning, and preventative maintenance. Our team of qualified professionals collaborates with all stakeholders to deliver innovative solutions at every stage of the project.
Products Tailored to Your Cleanroom Environment
Provide Terra with your desired ISO Gradeâ„¢ design. We will tailor the product to meet your criteria and certify it with a report appended to your invoice. Certificate includes all the necessary information to streamline audits and facility compliance.
Don't Budge on Your Budget, Save on High-Quality ValuLine Products
Compromising on quality goods with costs can be tiring. Here at Terra, the compromise is over with our wide range of ValuLine products. From cleanrooms to glove boxes, ValuLine products come with a premium quality without sacrificing an affordable price.
On a tight schedule?Choose FasTrak 24/7 Priority Service to help meet your critical schedule for Terra-manufactured products, either before or after your order is placed.*
FasTrak 24/7 provides a 24/7 commitment to meet the shipping date YOU specify, regardless of quoted lead times.
FasTrak 24/7 assigns a dedicated production team plus a dedicated senior expeditor working three shifts to meet your delivery specification.
FasTrak 24/7 guarantees* to meet the agreed-to specified ship date.
Call for pricing. FasTrak service fees cover costs of additional services only, without additional profit.
* Terra's FasTrak services limited guarantee: to ship on the ESD or date specified OR to refund up to 100% of FasTrak charges. This guarantee covers no direct, special, consequential or other damages and is strictly limited to up to 100% of the amount paid for FasTrak service. When a specified ship date is missed due to factors outside Terra's control (vendor performance, deliveries by shipping companies, etc.) and random factors such as accidents, the credit of up to 100% of the FasTrak 24/7 may not apply. FasTrak service requested after order placement will be quoted and accepted based on available time remaining before required ship date.