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Terra Part #PriceShips in
304 Stainless Steel2 BlowersNo28"29"28"304 Stainless Steel 1683-68B 39011 $1,96035-45 Days2
304 Stainless Steel2 BlowersNo28"29"28"Acrylic 1683-56B 38999 $1,23925-35 Days3
304 Stainless Steel2 BlowersNo28"29"28"Static-Dissipative PVC 1683-44B 38987 $2,27125-35 Days4
304 Stainless Steel2 BlowersNo28"29"28"Non-Dissipative PVC 1683-50B 38993 $1,56625-35 Days5
304 Stainless Steel2 BlowersNo28"29"28"Polypropylene 1683-62B 39005 $1,79625-35 Days6
304 Stainless Steel3 BlowersNo42"29"28"304 Stainless Steel 1683-69B 39012 $2,33735-45 Days7
304 Stainless Steel3 BlowersNo42"29"28"Acrylic 1683-57B 39000 $1,37725-35 Days8
304 Stainless Steel3 BlowersNo42"29"28"Static-Dissipative PVC 1683-45B 38988 $2,72325-35 Days9
304 Stainless Steel3 BlowersNo42"29"28"Non-Dissipative PVC 1683-51B 38994 $1,68825-35 Days10
304 Stainless Steel3 BlowersNo42"29"28"Polypropylene 1683-63B 39006 $1,98825-35 Days11
304 Stainless Steel4 BlowersNo56"29"28"304 Stainless Steel 1683-70B 39013 $2,95035-45 Days12
304 Stainless Steel4 BlowersNo56"29"28"Acrylic 1683-58B 39001 $1,48525-35 Days13
304 Stainless Steel4 BlowersNo56"29"28"Static-Dissipative PVC 1683-46B 38989 $3,16225-35 Days14
304 Stainless Steel4 BlowersNo56"29"28"Non-Dissipative PVC 1683-52B 38995 $1,97325-35 Days15
304 Stainless Steel4 BlowersNo56"29"28"Polypropylene 1683-64B 39007 $2,14125-35 Days16
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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 Vertical Benchtop Ducted Exhaust Fume Hood

ValuLine™ Benchtop Ducted Exhaust Fume Hood

Ducted Exhaust Hood microscope enclosure 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
Ducted Exhaust Hood with laboratory model

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.

Specifications
  • 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 hood dimensions diagram
Blower performance- Testing performed on 42"W models
Exhaust Hood air flow Diagram Exhaust Purification Airflow
  • As Shown:
    • 600 CFM exhaust flow
    • (200 CFM per filter pack)
  • With HEPA final filters #1621-02:
    • 525 CM exhaust flow
    • (175 CFM per filter pack
  • 3 1200 CFM Impellers
  • 3 Charcoal Filters #1716-00
  • 6 Pre/Post Filters #1681-04A

Exhaust hood dimensions diagram

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

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Manuals & Resources

Manuals & Resources

Laminar Flow and Fume Hoods FAQs

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