Vacuum Desiccator Cabinets are used to preserve samples and also to help them in stabilizing so that they can be analyzed. They are used to remove moisture from any material. These Vacuum Desiccator Cabinets are available in polypropylene, glass or also in poly carbonate materials. The compatibility of a Vacuum Desiccator Cabinet differs on the basis of the chemical that will be used. The other things that may differ from one desiccator cabinet to the other are the inside diameter, plate diameter, clearance above the plate, total height of the cabinet and the flange OD. They can be chosen according the user’s preference.
Definition of Vacuum Desiccator Cabinets
In other words, Vacuum Desiccator and Dry Boxes can be defined as the vacuum chambers that are built with the help of clear acrylic. They are used for vacuum testing purposes, defoaming, degassing of small parts, biological testing of mixed liquids and also for storing samples under intermediate and sustained low vacuums. The desiccators can be purchased in standard sizes. They can also be built in a customized manner according to the preference of the customer.
Characteristic of a Vacuum Desiccator Cabinet
These cabinets are made of a clear acrylic material with a thickness of 1 inch. They have a removable cover that belongs to the type II. This makes the insertion of the samples and taking them out easier. The samples in all the shelves can be easily accessed with the help of front hinged door that also belongs to the type II. Air tight seal inside the cabinet is ensured with the help of a vacuum gasket that is present in the door. This prevents any air from entering the cabinet. These cabinets are built in such a manner that they a vacuum level up to 29.8″ Hg and even more. This is less than 756 millimeter of mercury. The desiccator cabinet is also known to have one removable acrylic shelf that is perforated. It is optional to have additional shelves. There are two vacuum valves that are mounted on top of the cabinet. They allow nitrogen gas to be purged inside the desiccator before any vacuum is applied to it. Corrosion resistance is provided with the help of stainless steel latches. The vacuum levels are indicated with the help of vacuum gauges of different quantities.
Types of Vacuum Desiccator Cabinets
Based on the features of the cabinet units they can be distinguished into different types. Some of them are named here: vacuum desiccator cabinet with a removable lid. Type II cabinets that comes with a hinged swing door.
Pump accessories for vacuum control units
A vacuum pump control unit is used to monitor the vacuum levels in a remote vacuum chamber and also to automatically control the pumping operations by turning the pump on and off as required. They are suitable to be used for non corrosive or non inflammable gases and air only.
When 2 stage pumps are used in a vacuum desiccator, they give a deep vacuum when compared to a desiccator with a single stage pump.