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

25 customer reviews

List Price: $135.45
Price: $84.87 & FREE Shipping. Details
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Ships from and sold by Amazon.com. Gift-wrap available.
  • 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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$84.87 & 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 NameBel-Art Products
Item Weight1 pounds
Product Dimensions9.6 x 9.6 x 6.7 inches
Item model number420430000
ShapeRound
Material TypePolycarbonate/PTFE
Number of Items1
Manufacturer Part Number420430000
  
Additional Information
ASINB002VBW9VO
Best Sellers Rank #26,612 in Office Products (See top 100)
Shipping Weight2.2 pounds (View shipping rates and policies)
Domestic Shipping Item can be shipped within U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First AvailableNovember 3, 2009
  
Warranty & Support

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

Desiccators

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.

Technical Details

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

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

20 of 21 people found the following review helpful By C. Johnston on August 31, 2011
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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21 of 23 people found the following review helpful By Woj on February 16, 2013
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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8 of 8 people found the following review helpful By Unkle_Errl on August 30, 2012
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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11 of 15 people found the following review helpful By D. Sanchez on January 15, 2013
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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2 of 2 people found the following review helpful 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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1 of 2 people found the following review helpful By Old Guy on August 13, 2013
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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2 of 3 people found the following review helpful 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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Most Recent Customer Reviews

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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: $84.87
Ships from and sold by Amazon.com
Want to discover more products? Check out these pages to see more: vac chamber, polycarbonate purge