|Brand Name||Bel-Art Products|
|Item Weight||1 pounds|
|Product Dimensions||9.6 x 9.6 x 6.7 inches|
|Item model number||420430000|
|Number of Items||1|
|Manufacturer Part Number||420430000|
Bel-Art 420430000 Vacuum Chamber Jar with ABS Plate, 7-7/8 x 4-3/8-Inch, Clear Polycarbonate
|Price:||$98.42 & FREE Shipping. Details|
|You Save:||$37.03 (27%)|
- Enter your model number above to make sure this fits.
- Polycarbonate upper chamber with built-in stopcock. Stopcock accepts 1/4-Inch (6.4mm) I.D. flexible vacuum tubing. (Tubing sold separately).
- Polypropylene stopcock with a Teflon® PTFE plug controls airflow to gently release vacuum
- Top vacuum chamber jar is molded of clear polycarbonate for full visibility and will withstand a full vacuum at room temperature.
- Includes 9-1/8-Inch diameter sealing plate.
- Chamber I.D. x Height: 7-7/8 x 4-3/8-Inch (20 x 11cm). Plate O.D. x Height: 9-1/8 x 1-3/4-Inch (23.2 x 4.4cm)
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From the Manufacturer
Desiccators are an economical and reliable way to assure dry, dust-free, and if necessary, air-free storage of humidity sensitive products, such as valuable reagents or electronics.
Depending upon what you are storing, optimal conditions can be achieved using standard desiccants in a manual or automated format, with gas purge or by keeping the contents under vacuum.
When choosing a desiccator the following questions should be considered:
Q. What storage environment is optimal or required?
A. Use this chart for an overview of the environment and benefits each method of desiccation provides.
|Standard Desiccant||Automated, Standard Desiccant||Gas Purge||Vacuum|
|Manual monitoring and operation. Moisture is absorbed from air in the unit by using a desiccant. Once the desiccant is 'saturated' it must be regenerated through heating, or replaced.||Electric fans and heaters continuously regenerate the desiccant to prevent saturation and to automatically maintain a low humidity environment.||A slow steady flow of inert gas (often dry nitrogen) is provided.||Air and moisture are removed by the chamber by use of a vacuum pump.|
|Flexibility to use any type of desiccant (silica gel beads, activated charcoal, etc) based on economics and convenience.||Convenience, requires minimal monitoring.||Achieve relative humidity at a much faster rate.||Best for total dry storage or if air could be damaging to material being stored.|
|Portability.||Precise control of humidity. Operates on a set schedule of desiccation followed by a regeneration period.||Dust free and desirable for many applications including clean room environments.||Dust free and desirable for many applications including clean room environments.|
|Economical functionality. Most desiccants can be regenerated periodically.||Process uses silica gel beads that last for thousands of regeneration cycles.||Option to close stopcocks and use with regular desiccants.||Option to close stopcocks and use with regular desiccants.|
What do you need to know to choose the right desiccator?
Q. What size(s) are the items you need to store and in what quantity?
A. Interior volume of the desiccator and shelving should be considered.
Q. How important are ease and economy of use?
A. Each method of desiccation has advantages and trade-offs. Each user must determine the method that best serves their purposes. Using standard desiccants and regenerating them as needed is economical, but requires monitoring. There may also be more variability in your environment. An automated desiccator requires much less monitoring but uses electric power. Gas ported desiccators are quick to achieve relative humidity, but if the unit is accessed frequently, proportionately more gas will be needed to keep the desired low humidity level. Vacuum desiccators remove air and moisture and can be brought back to vacuum rather easily after opening but require a pump.
Once you have determined your most desirable method of desiccation, there are a variety of styles and sizes of desiccators to choose from.
Search by brand name indicated below for more information.
|Secador||Space Saver||Techni-Dome||Dry-Keeper||Lab Companion||Scienceware|
|Standard Desiccation||0.31 to 1.87ft³||0.09 to 0.31ft³||0.14, 0.35, 2.01 & 2.08ft³||0.21 & 3.6ft³|
|Automated, Standard Desiccation||0.51 to 1.87ft³||1.2, 2.01 & 2.08ft³||3.6ft³|
|Gas Purge Desiccation||0.31 to 1.87ft³||2.29ft³||0.14ft³||3.6ft³|
|Vacuum Desiccation||0.09 to 0.31ft³||2.29ft³||0.2, 0.4, 0.7, 0.8, 1.2 & 1.6ft³||0.015 & 0.21ft³|
Vacuum Chamber and Plate
For Vacuum Drying, Degassing and Teaching Demonstrations
Ideal for vacuum drying, degassing and teaching demonstrations, this vacuum chamber can withstand a full vacuum at room temperature.
- One piece O-ring seals the clear polycarbonate top to white polycarbonate base plate
- Polypropylene stopcock with Teflon PTFE plug and tapered hose barb accepts tubing with ¼" (6mm) I.D.
- Dimensions (D x H) 22.8 x 16cm (9" x 6¼ ")
- Internal Volume 0.2 cu.ft.
Top Customer Reviews
I can't argue with the value provided. It does the job, for not much money.
Within 1 year it will only hold vacuum for appx 15 minutes after pump is shut off. Once valve is turned off my pump stops moving air & Pulls much harder vacuum.. IE this thing leaks like a seive. Do yourself a favor and go with something better.
Others commented that the O ring was a bit too small and would not stay in the groove. It has only popped out once for me, and it goes back in easily. I suspect that it has to be a little small for the groove so that when the cover is under vacuum it has room for expansion.
Some people commented that it would not hold vacuum. Perhaps the nut on their valve is loose or they have leaks elsewhere.
Overall, I am pleased with the unit and have no complaints or concerns.
For those of you who want to add a gauge, order the "Winters PEM Series Steel Dual Scale Economy Pressure Gauge, 30 "HG" right here on amazon. I think the gauge and shipping was $12 or so, Same price as Chinese but made here! Take the gauge down to the hardware store and buy a brass fitting that fits the gauge and converts it to a hose barb. Buy a little bit of thread sealing tape. Then carefully drill a hole in the top center of the vacuum chambers handle, just big enough for the barb. Push the hose barb into the hole, level the gauge, and dab a little epoxy around where the brass fitting touches the vacuum chamber dome. Without a gauge this gets four stars. Add a gauge and give yourself a star!
Most Recent Customer Reviews
This is a great storage unit. Add some silicone grease to the rim and then you can put in the freezer as well.Published 11 months ago by Aaron Froese
It does what it says over and over never had a prob.It would be better with a hot plate but still sweet.Published on January 20, 2014 by unsub
Stupid for BHO extraction and purging, without a heat source in this theres no real purging, and its a very cheap piece of equipment, you have the press the lid into the seal HARD... Read morePublished on December 6, 2013 by K. M. Montgomery
Awesome unit I like the fact that you can hook this up to just about any kind of vacuum you likePublished on September 11, 2013 by Big Smeezy
Great size and contents easily viewable,
Intake valve works very well, lightweight and easy to operate
Quality of unit is very high grade plastic.