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Terra Part #PriceShips in
304 Stainless Steel 2 Blowers No 28" 29" 28" 304 Stainless Steel 1683-65B 39008 $2,50935-45 Days2
304 Stainless Steel 2 Blowers No 28" 29" 28" Acrylic 1683-53B 38996 $1,71525-35 Days3
304 Stainless Steel 2 Blowers No 28" 29" 28" Non-Dissipative PVC 1683-47B 38990 $2,15425-35 Days4
304 Stainless Steel 2 Blowers No 28" 29" 28" Polypropylene 1683-59B 39002 $2,43525-35 Days5
304 Stainless Steel 2 Blowers No 28" 29" 28" Static-Dissipative PVC 1683-41B 38984 $3,25425-35 Days6
304 Stainless Steel 3 Blowers No 42" 29" 28" 304 Stainless Steel 1683-66B 39009 $3,53935-45 Days7
304 Stainless Steel 3 Blowers No 42" 29" 28" Acrylic 1683-54B 38997 $1,94925-35 Days8
304 Stainless Steel 3 Blowers No 42" 29" 28" Non-Dissipative PVC 1683-48B 38991 $2,47525-35 Days9
304 Stainless Steel 3 Blowers No 42" 29" 28" Polypropylene 1683-61B 39003 $3,12225-35 Days10
304 Stainless Steel 3 Blowers No 42" 29" 28" Static-Dissipative PVC 1683-42B 38985 $4,00225-35 Days11
304 Stainless Steel 4 Blowers No 56" 29" 28" 304 Stainless Steel 1683-67B 39010 $3,93735-45 Days12
304 Stainless Steel 4 Blowers No 56" 29" 28" Acrylic 1683-55B 38998 $2,17225-35 Days13
304 Stainless Steel 4 Blowers No 56" 29" 28" Non-Dissipative PVC 1683-49B 38992 $2,91125-35 Days14
304 Stainless Steel 4 Blowers No 56" 29" 28" Polypropylene 1683-60B 39004 $2,90325-35 Days15
304 Stainless Steel 4 Blowers No 56" 29" 28" Static-Dissipative PVC 1683-43B 38986 $4,59225-35 Days16
Frame Material
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Product Details

• Provides effective, economical venting of exhaust fumes

• Draws exhaust fumes into an exhaust duct for delivery to an in-house filtration system

• Blower modules ventilate without exit HEPA or charcoal filters

• Requires connection to an external exhaust system

Features & Benefits

Features and Benefits

ValuLine Horizontal Benchtop Ducted exhaust Fume Hood

ValuLine™ Benchtop Ducted Exhaust Fume Hood

Horizontal Flow Exhaust Fume Hood With Model
  • Powerful 1200 CFM blowers with unique plenum chamber ensure uniform air velocity throughout the entire work area
  • Modular design minimizes turbulence and noise associated with large, centralized filter/blower systems
  • Optional ionizing equipment ensures static safety in laminar flow applications
  • Custom modifications provide economical solutions to unique requirements
  • Stainless steel hood frame supports your choice of five different panel materials

These Environmental Control Modules address a central cleanroom dilemma: high-technology equipment requires smaller geometries (and more stringent environmental standards), while the necessary cleanrooms become increasingly expensive to construct and maintain.

The Cleanroom Dilemma

In fact, research suggests that particles in the sub 0.1 micron range, which can degrade today’s most sensitive components, are largely unaffected by cleanroom laminar flow airstreams. The disturbing consequence of these findings is that many submicron particles—once they are introduced into a cleanroom—may be nearly impossible to remove, even with sophisticated HEPA filtering systems. At the heart of this problem are humans themselves— by far the greatest source of contamination in a cleanroom.

Isolated controlled-air environments provide a cost-effective solution to this problem. Once an operator is removed from the processing or storage area, maintaining superclean conditions becomes much easier—and much more affordable!

A Controlled Environment To Fit Your Needs

Terra’s Environmental Control Modules provide a versatile, economical approach to this mini-environment concept.

Their design flexibility allows you to construct a laminar flow or exhaust purification/removal system for virtually any sized enclosure. Hoods are available for use with two, three, or four filter/blower modules, and several hoods of any size can be positioned together to form as large a work station as you need. Blower/filter modules attach securely to hoods by means of a few screws, and gaskets ensure an air-tight seal.

Further, blower/filter modules can be wall mounted to provide continuous filtering/recirculating, or operated as free-standing systems to deliver a continuous supply of Class 10 air (or purified exhaust) to a remote benchtop or enclosure.

The low-profile filter/blower module incorporates 1200 CFM impeller blowers designed for quiet, continuous duty. A flexible mounting system enables it to function as a positive-pressure blower in one set of applications, drawing air through intake baffles and directing filtered air through an exhaust grid. In the other mounting position, it functions as a negative-pressure ventilator, drawing exhaust fumes through a charcoal purification filter and then releasing them through 8"-diameter exhaust flanges.

The polypropylene housing accommodates a variety of filters. HEPA (High- Efficiency Particulate Air) and ULPA (Ultra-Low Penetration Air) filters provide Class 10 (and cleaner) air flows—refer to performance graph for flow rate and particle counts. Exhaust purification filters remove from the air stream the fumes produced during soldering, screen printing, chemical titrations, and other processing operations (see page 392 for characteristics of exhaust purification filters). Filters can also be used together in the same housing to ensure a clean, purified exhaust flow.

Modular Hoods to Fit Any Requirement

Hoods are designed to fit on a standard table when interfaced with the filter/blower module. Hoods for vertical flow applications are designed for tables 30" deep or deeper. Hoods for horizontal flow applications require a 34"- 44" deep table to accommodate both the hood and filter/blower. Both hood designs are available in three widths. All hoods feature a segmented access shield that allows ample operator access to the working area and also closes completely to minimize contaminants. Stainless steel hood frames support your choice of five different hood materials.

Uniform Laminar Flows— No Matter How Large the System

This range of sizes gives you complete flexibility to design a system that meets your requirements.

Double-width hoods provide ample working space for one operator. Larger hoods maintain effective laminar/exhaust flow rates for larger working areas and several operators.

In fact, their economical, modular design lets you configure a bank of controlled-air enclosures as wide as you want. Because each incorporates its own filter/blower module, the system maintains a uniform laminar flow across the entire work area—no matter how large it is—with minimal noise and turbulence. Compare this working environment with the noisy, wind-blown processing areas in systems that rely on a single, centralized filter/blower!

Hoods are available in five materials. Terra’s light-weight, transparent staticdissipative PVC, which features a surface resistivity between 106 and 108 ohms/square, safely eliminates static build-ups and the particles they attract, making surfaces clean inside and out. Nondissipative PVC and polypropylene enclosures are ideal for use with a wide range of caustic fumes. All hoods feature a stainless steel reinforcement frame for optimal strength and stability.

Hoods can also be equipped with a conduit flange to allow remote applications. Simply specify desired location of input/exhaust when ordering.

  • Blower: 1200 CFM (rated at 0" static pressure) 1675 RPM variable-speed impeller; 115VAC/60Hz; consumes 115W; 1.0 running amps (230VAC/50Hz models also available); housed in white polypropylene housing with plenum chamber to optimize uniform air flow. Note: 1200CFM blowers used in ductless exhaust applications do not include speed controls.
  • Filters:
    • HEPA: 99.99% efficient @ 0.3μm particles
    • ULPA: 99.999% efficient @ 0.12μm particles
  • Exhaust Purification: Activated charcoal filter rated effective with wide range of organic fumes
  • Dimensions
    • Hood: See dimensional illustrations
    • Blower Housing: 131/2"D x 321/4"H x 28", 42", or 56"W
  • Power Strips: Includes 4 grounded electrical receptacles, a master on/off switch, and a 15-amp circuit breaker. Standard mounting is on the interior right side of the hood.
Exhaust fume hood dimensions diagram
Blower performance- Testing performed on 42"W models
Laminar Flow Air Speed
  • Max.>150 ft./minute (adjustable to 90 ft./minute)
  • Air Flow:
  • 800 CFM
  • 1 1200 CFM Impeller
  • 3 HEPA Filters #1681-02

Horizontal Exhaust hood dimensions diagram

Terra Universal's ValuLine Ducted Exhaust Fume Hoods come in three sizes and five different materials to meet your requirements.

Continuous Product Improvement

At Terra, we strive to develop and produce the highest quality products for our customers to improve health, safety, performance, and yields. Our product quality is enabled by high-grade manufacturing equipment and processes, 45 years of engineering and application expertise, and our commitment to continuously improve.

Global Customer Base

At Terra, we are committed to providing top-tier equipment to customers throughout the world. Over the past 5 years, clients in over 100 countries have purchased equipment from Terra.

Top-Tier Clients

Terra’s key customers include some of the largest research labs, production facilities and universities in the world

Industry-Leading Product Quality

At Terra, we strive to produce the highest quality products for our customers. Our product quality is enabled by high-grade manufacturing equipment, over 45 years of engineering expertise, and our commitment to continuously improve.

Long-Standing Industry Experience

For 45 years, Terra has served the life science, academic research, pharmaceutical, biotechnology, medical device, semiconductor and aerospace markets

Available Accessories

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Benchtop Vertical Laminar Flow Hood with Automatic Height Adjusting Table
    Vertical laminar flow hoods provide a HEPA-filtered work area for protection from particle contaminants. Benchtop laminar flow hoods can easily mount to an automatic height adjusting table (28”-43”H). Perfect for workstations with heavy or fragile equipment.
  • Replacement Filters
    Purchase replacement filters ahead of time to prevent costly operational interruptions and avoid damage to fan blowers caused by excessive backpressure from long overdue filter replacements.

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