Terra Part # 3306-88
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Glovebox; Negative Pressure Exhaust, Acrylic, 38" W x 27" D x 30" H, 2 Glove Ports, Right-Side Air Lock, Series 210
  • Maintains vacuum levels down to 29.9 "Hg
  • Right-hand airlock included
  • Includes 8” (203 mm)-diameter acrylic glove ports
  • Dual mini ball valves and vacuum gauge allows monitor and control of vacuum and backfill
  • Dual swing doors allow convenient chamber sealing with glove ports in place
  • Includes nylon leveling feet
  • Safe for intermittent vacuum below 29"; damage to welds may result under continuous full-vacuum pressure
  • CAUTION: Acrylic is damaged by alcohol and many other cleaning agents. Use only water and mild detergent
  • Select desired gloves and vacuum/purge controls separately

Chamber Width: 30"

Chamber Depth: 22"

Chamber Height: 22.5"

Maximum Working Height: 23.5"

Material: Acrylic

Airlock Opening: 10" W x 10" H

Configuration: Right-Side Airlock

Number of Glove Ports: 2

Unit of Measure: EA

Weight, Product: 400 lb

Dimensions, Product: 38" W x 27" D x 30" H

Weight, Shipping: 546 lb

Dimensions, Shipping: 54" W x 38" D x 35.5" H

Package Type: Crate

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  17. Leveling foot nylon 2 inch diameter | 1540-51 displayed
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  20. Equipment Testing
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  22. Allows transfer of materials into the glovebox without breaching the controlled environment (shown with left-mount airlock). | 3305-48 displayed
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  23. Senses and indicates vacuums on 0-30 Hg scale | 5235-10 displayed
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  24.  | 5235-23 displayed
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Negative Pressure & Vacuum Glove Boxes

  • Single Acyrlic Glovebox Vacuum Right Airlock Right Airlock Acrylic Vacuum Glovebox
  • Acrylic Vacuum Glovebox with Air Lock Series 210 Vacuum Glovebox
  • Acrylic Vacuum Glovebox with Vacuum Air Lock Acrylic Vacuum Glovebox (Series 210)

Features and Benefits

Series 210 Glovebox

Important Application Notes for Series 210 Glove Box

Vacuum Warning

The Series 210 Glovebox is designed for intermittent vacuum service as low as 29.9"Hg, as would typically be required in order to evacuate the chamber and backfill with process gas. Damage to welds can result if the chamber is exposed to continuous vacuum levels below 29" Hg.

How to Attain Extremely Low RH/O2 Concentrations: Vacuum Cycling vs. Purge and Bleed

Vacuum cycling provides the quickest, most economical way to achieve extremely low moisture and oxygen levels inside a glovebox.

Purge-and-bleed displacement relies on a continuous purge of dry process gas (typically, nitrogen or argon) to displace moisture-laded air, which exits through a bleed valve. This process typically requires many hours, consumes a high volume of process gas, and may never achieve very low oxygen concentrations (below 5 ppm) required in many applications.

Vacuum cycling evacuates ambient air – and with it, moisture and oxygen – inside a vacuum chamber or glovebox. When air is removed, you simply backfill the chamber with process gas until the chamber attains neutral pressure. If needed, this process is repeated until oxygen or moisture concentration reaches the desired level. Typically, only a few cycles, requiring only a fraction of the gas and time of a purge-and-bleed protocol, are all that's needed to reach single-digit oxygen concentrations.

Once set point levels are attained, close off vacuum valves and use a Dual Purge System and appropriate controller (NitroWatch™ for relative humidity, Trace Oxygen Analyzer for O2 concentration) to maintain dry, anaerobic conditions.

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