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Laboratory PP Fume Hood Acid Alkali Resistant Customized

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Chengdu Ample Import And Export Co., Ltd.

Laboratory PP Fume Hood Acid Alkali Resistant Customized

Country/Region	china
City & Province	chengdu

Product Details

Acid & Alkali Resistant Customized Laboratory PP Fume Hood

A fume hood is designed to capture chemical vapors and exhaust them away from the user. A biosafety cabinet (BSC) is designed to capture infectious agents through a high efficiency particulate air (HEPA) filter and recirculate the filtered air back to the working area within the cabinet and to some extent back into the laboratory (Type A BSCs). A BSC is not able to mitigate the hazards posed from volatile chemicals and should not be utilized for such tasks. Certain BSCs such as type B BSCs may be used with very minute amounts of chemicals only after a thorough risk assessment is conducted.

Ductless fume hoods are not vented to the outside and utilize filters to capture the hazardous vapors. All air that flows through these stand alone fume hoods will get recycled back into the laboratory space. Over time the filters require replacement and oftentimes these filters fail to contain all vapors, thus posing a significant hazard. Ductless fume hoods should only be utilized after a thorough risk assessment.

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)

The volume of air that passes through a fume hood is constant and sash position does not control this value. Sash position does control the velocity at which the air passes through the fume hood. Raising the sash will reduce airflow velocity while lowering the sash will increase airflow velocity. Airflow velocity is a major factor that determines chemical vapor capture, a higher airflow velocity will contain vapors better than a lower airflow velocity. It is good practice to work with the sash as low as possible, at a minimum the sash should be below the safe sash operating marker.

The lights installed in fume hoods are sealed from vapors and are intrinsically safe. All electrical components within the fume hood are designed to work with flammable vapors. Additional experimental specific equipment added to the fume hood such as heaters or other electronics may not be rated to work with flammable vapors. All additional equipment utilized in the fume hood should be thoroughly inspected prior to use.

Acid & Alkali Resistant Customized Laboratory PP Fume Hood

The hood should be used for ongoing experiments and not for storage of bulky equipment or excess chemicals. It is imperative not to store anything in the hood that blocks the sash from closing. If large pieces of equipment are required to be stored in the hood it is recommended to raise the equipment off of the working surface by a few inches with blocks to allow for better airflow around the equipment.

Some advanced laboratory fume hoods have microcontrollers inside them, which you can use to control the exhaust. You may set various suction levels for given setups and later use these quick setups for particular experiments. You can also control the fan/pump power during the experiment too, and the lights as well.

Inside the fume hood, there are facilities to let you work. For example, there is almost always some good lighting system in the cabinet. There should be LPG and water connections in the hood, and a drain too in case of spills.

The air suction system is generally placed on top of the box or on the backside (the side towards the wall). This system is generally made up of a strong exhaust fan or air pump and accompanying air duct. The strength of the pump lies in the airflow strength starting from 4 to 8 meters per second to more.
Acid & Alkali Resistant Customized Laboratory PP Fume Hood