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Bel-Art 420430000 Vacuum Chamber Jar with ABS Plate, 7-7/8 x 4-3/8-Inch, Clear Polycarbonate

4.2 out of 5 stars 26 customer reviews

List Price: $135.45
Price: $98.42 & FREE Shipping. Details
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  • 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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$98.42 & FREE Shipping. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Product Description

Chamber,Pc/Abs/Teflon,VacuumRun the Vacuum Chamber for drying, degassing and teaching demonstrations. The transparent polycarbonate is shatter resistant and allows easy viewing of contents. The ABS plastic plate seals to the top with an O-ring. The stopcock accepts 6.4mm (1/4“ ) I.D. tubing. Dimensions: chamber I.D. is 20cm (7 7/8“ ) inside height is 11cm (4 3/8 “ ). The plate is 232mm (9 1/8“ ) in diameter and 44mm (1 3/4 “ ) high. Per eachPolycarbonate upper section with stopcock• Polypropylene stopcock with a Teflon® PTFE plug controls airflow to gently release vacuum• Withstands full vacuum at room temperature Product photo may not exactly match the product offered for sale. Please refer to the product description.

Product Information

Technical Details

Brand Name Bel-Art Products
Item Weight 1 pounds
Product Dimensions 9.6 x 9.6 x 6.7 inches
Item model number 420430000
Shape Round
Material Type Polycarbonate/PTFE
Number of Items 1
Manufacturer Part Number 420430000

Additional Information

ASIN B002VBW9VO
Customer Reviews
4.2 out of 5 stars 26 customer reviews

4.2 out of 5 stars
Best Sellers Rank #111,487 in Office Products (See top 100)
#735 in Industrial & Scientific > Raw Materials > Plastics
Shipping Weight 2.2 pounds (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available November 3, 2009

Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

From the Manufacturer

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.
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

Technical Details

  • Brand Name: Bel-Art Products
  • Part Number: 420430000
  • Material Type: Polycarbonate/PTFE
  • Number of Items: 1
  • Item Package Quantity: 1

Customer Reviews

Top Customer Reviews

Verified Purchase
I bought this bell jar to pull the bubbles out of a pouring-type of two-part RTV. It works just fine for that. The plastic valve is a bit on the flimsy side, but it ultimately wasn't a problem. If I used this regularly, that valve would probably be the first thing to fail. The port on the polycarb dome isn't reinforced and might become a likely spot for cracks to form.

I can't argue with the value provided. It does the job, for not much money.
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Verified Purchase
Works well for purging BHO with my JB platinum 200N 7cfm vacuum pump. Ususally takes 3-6 hrs to compete a purge run. Not a bad product, just wish it held vacuum a little better. I also feel that the push on valve is a source of vacuum leaks.

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.
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Verified Purchase
This is the perfect size for what I need it for... the valve does seem a little flimsy, but it hasn't broken yet so no complaints!!
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Verified Purchase
upon the first use of this desiccator being hooked up to a 5cfm 2stage pump both the stopper, and connecter end cracked from the suction. It allows me to reach a full -29hg but only if the pump is constantly running, as soon as it turns off the seal is lost. beware! DO NOT PURCHASE!! a replacement valve is 36$! what a rip off.
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By john on December 29, 2012
Verified Purchase
liked the unit itself but the hardware could be a little more rugged, the o ring tore the first time i stretched it and the threads on the bleeder tend to strip easily.
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Verified Purchase
For what it is, it works well. You don't have to have a heat source to purge BHO, especially if you are capable of problem solving. First vac purge I have ever done, and I am pulling perfect honeycomb cookies, and they smell just like the flowers. Had I been a little more patient, I'd have bought a SS pot, but I cannot complain because it straight up works! Might try to make some shatter next time.
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Verified Purchase
Of all the affordable vacuum chambers available this unit had the least number of negative reviews. So I bought it. The unit holds vacuum well. I did install a vacuum gauge on the handle at the top, and there is no perceptible loss of vacuum over a four hour period. I did find though, that the included valve will leak a bit if the nut on the shaft loosens up. It it on the bottom of the valve, and is the third red piece of plastic in the photo.

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!
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By Dbl-Hlx on February 19, 2013
Verified Purchase
The unit in self works well, but the plastic hose connectors failed with in a few hours or pressure. I would recommend getting some copper connectors
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Bel-Art 420430000 Vacuum Chamber Jar with ABS Plate, 7-7/8 x 4-3/8-Inch, Clear Polycarbonate
This item: Bel-Art 420430000 Vacuum Chamber Jar with ABS Plate, 7-7/8 x 4-3/8-Inch, Clear Polycarbonate
Price: $98.42
Ships from and sold by Amazon.com
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