Product Description
Fume hoods or other local exhaust hoods are an important safety component to any laboratory handling toxic solvents, corrosives, or other volatile chemicals. A chemical fume hood is a partially enclosed work space that is exhausted to the outside. Laboratory fume hoods are thefirst defense to minimize chemical exposure to research workers. They are considered the primary means of protection from inhalation of hazardous vapors because they capture, contain, and expel emissions generated by hazardous chemicals. It is, therefore, important that all potentially harmful chemical work be conducted inside a properly functioning fume hood.
A chemical fume hood is designed to protect the user by drawing contaminants away from you. Therefore, work with hazardous chemicals should not be done on a clean air bench, which is designed to protect biological specimens by drawing air from the back of the hood toward the user. Likewise a biosafety cabinet (which can exhaust contaminated air back into the work environment) cannot safely be used with hazardous gases and vapors.
Product Parameters
| Model Specification |
WJ-1500A |
WJ-1500B |
WJ-1800A |
WJ-1800B |
| External dimensions of equipment(mm) |
1500(W)*1205 (D) *2400 (H) |
1800(W)*1205 (D) *2400 (H) |
| Dimension of works pace (mm) |
1260(W1)*780(D1) *1100 (H1) |
1560(W1)*780(D1) *1100 (H1) |
| Panel material |
20+6mm thick butterfly ceramics |
| Material of internal lining board |
5mm thick ceramic fiber board |
| Diversion structure |
Lower air return |
| Control system |
Button control panel (LCD panel) |
| PH value control |
The medium is alkaline water solution; manual monitoring, and manual control through acid pump and alkali pump. |
| Input power |
Three-phase five-wire 380V/50A |
| Current for air fan |
Not over 2.8A(380V or 220V can be directly connected) |
| Maximum load of socket |
12 KW(total of 4 sockets) |
| Water tap |
1 set (remote control valve + water nozzle) |
No |
1 set (remote control valve + water nozzle) |
No |
| Water discharge way |
Magnetic chemical pump strong discharge |
| Using environment |
For non-explosion indoor use, within 0-40 degrees Celsius. |
| Applicable fields |
Inorganic chemistry experiment; Food, medicine, electronics, environment, metallurgy, mining, etc. |
| Ways of Purification |
Spray sodium hydroxide solution, no less than 8 cubic meters/hour |
Spray sodium hydroxide solution.no less than 12 cubic meters/ hour |
| Ways of surface air speed control |
Manual control (through the electric air valve to adjust the exhaust air volume or adjust the height of the moving door) |
| Average surface air speed |
0.6-0.8 m/s Exhaust air volume: 1420-1890m3/h (when door height h =500mm) |
0.6-0.8 m/s Exhaust air volume: 1760-2340m3/h (when door height h =500mm) |
| Speed deviation of surface air |
Not higher than 10% |
| The average intensity of illumination |
Not less than 700 Lux; Standard white and uv-free yellow LED lamps; The illumination is adjustable. |
| Noise |
Within 55 decibels |
| Flow display |
White smoke can pass through the exhaust outlet, no overflow. |
| Safety inspection |
No spikes, edges; Charged body and the exposed metal resistance is greater than 2 mQ; Under 1500V voltage, no breakdown or flashover occurred for 1min test. |
| Resistance of exhaust cabinet |
Less than 160 pa |
| Power consumption |
Less than 1.0kw/h (excluding power consumption of fans and external instruments) |
Less than 1.2kw/h (excluding power consumption of fans and external instruments) |
| Water consumption |
Less than 3.2L/ h |
Less than 4.0L/ h |
| Performance of wind compensation |
With a unique wind compensation structure, the volume of the wind will not cause turbulence in exhaust cabinet and will not directly blow to the staff (need to connect to the air compensation system of the laboratory) |
| Air volume regulating valve |
315mm diameter flanged type anti-corrosion electric air flow regulating valve (electric contact actuator) |
Our Advantages
-Control the rate of release of particles or vapors from reactions in order to minimize exposure to such chemicals.
-Do not leave a reaction unobserved for more than a few minutes.
-Place a mark on the front of the fume hood where the sash is raised to 18 inches. Perform work at or below the sash stop level.
-Perform all work in the hood at least six inches inside the hood sash.
-Never put your head in the hood.
-No extension cords or powerstrips should be present in the hood. Ensure that no sources of ignition or spark is present when flammable or explosive chemicals are being used.
-Wear appropriate protective clothing.
-Seal all chemical containers when not in use to avoid the possible build-up of vapors in the hood.
-If especially hazardous or corrosive vapors will be evolved, these exit gases should be passed through scrubbers or absorption trains.
Detailed Photos
FAQ
Before Using a Fume Hood
-The hood should be inspected annually by a trained professional. Verify that a inspection is current by checking the date on the inspection sticker.
- Make sure the hood is functioning properly and has good air flow.
-The face velocity of the hood should be between 80-120 lfpm to work properly. If the hood is outside these parameters, contact EH&S about hood repair.
-Sash is the term used to describe the movable glass panel that covers the face area of a fume hood. Keep the hood sash completely closed
when not in use.
-Never remove, modify, or override installed sash stops.
-Attach a piece of light paper, such as a "Kimwipe" to the inside bottom corner of the hood sash. Inward movement of the paper indicates air is being drawn into the hood. The paper should be moving, but not so rapidly that it tears or comes off.
- Avoid storing excess chemicals or equipment in the hood. If a small amount must be stored in the hood, keep them away from the baffle
slots in the rear of the hood or place on blocks so that air can flow to the bottom opening of the baffle.
- Never use the hood as a waste disposal mechanism (e.g., for evaporation of excess chemicals).
- Avoid cross-drafts which can cause turbulence and reduce the efficiency of the hood.
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