Acid & Alkali Resistant High Performance Fume Hood for School Experiments

• Customization: Available
• Material: Stainless Steel
• Type: Bypass Type
• Model NO.: WJ-1800B
• Feature: Corrosion Resistance, Heat Resistant, Acid & Alkali Resistant, Fireproof, Explosion Proof
• Hood Type: Standard
• Color: Grey
• Customized: Customized
• Condition: New
• Product Name: Laboratory Fume Hood
• Worktop: 20+6 mm Ceramic
• Liner Material: Ceramic Fiber Board
• Input Power: 380V/50A
• Face Velocity: 0.4-0.6 M/S
• Application: Environment/Institute/Biology Lab/Chemical Lab
• Transport Package: Standard Export Wooden Case Packing
• Specification: 1800*1205*2400 MM
• Trademark: Ample
• Origin: Chengdu, China
• HS Code: 8414809090
• Production Capacity: 200 Set/Month
• Package Size: 1900.00cm * 900.00cm * 2100.00cm
• Package Gross Weight: 500.000kg

Product Description

 

Product Description

Fume hoods, or fume cupboards, work to ensure the safety of lab personnel while working with hazardous materials by continuously delivering airflow away from the user. When used properly, fume hoods can prevent users and the environment from toxic gases, explosions, and spills.

Ducted fume hoods have a base, work surface, hood, blower and ducting that carries the air outside of the building. The engineer of the heating, ventilation and air-conditioning (HVAC) system needs to determine if your room has enough air to provide the necessary volume of ventilation to the hood.

Ductless fume hoods operate off a carbon filter system that recirculates filtered air into your building. Ductless hoods are often referred to as re-circulating range hoods. They filter the air and then return the clean air back into the workspace. They are self-contained filtered laboratory enclosures. Their primary features are mobility, they save energy, are easy to install and cheaper because no ductwork is required.

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

Ducted fume hoods are considered safest for workers in laboratories, and its often the easiest for employers to maintain. Many universities ONLY allow ducted fume hoods in their facilities to maintain worker and student safety.

Advantages and Disadvantages of Ducted Fume Hoods

Advantages	Disadvantages
Safer for lab workers	More expensive
Can handle a wide range of chemicals	More difficult to install
Easy to operate and maintain	Stationary in the lab
Exhaust system keeps contamination outside lab	More difficult to move or relocate
	Uses more energy

The disadvantage is that workers are at a greater risk of chemical exposure, filter maintenance is required, they can be noisy due to the internal blower and there are limited applications for filter options.

Ductless fume hoods are ideal for labs that require mobility, handle light to moderate chemical loads and are looking for a cost-effective option from both an installation and operational perspective.

Advantages and Disadvantages of Ductless Fume Hoods
 

Advantages	Disadvantages
Less expensive	Handles Limited chemicals
Easy to install	Need to replace filters
Mobile in the lab	Not as effective at removing chemical fumes
Easily moved or relocated	Not for constant use
Use less energy

Detailed Photos

         

 

Fume Hood Maintenance

 

• Hoods should be evaluated by the user before each use to ensure adequate face velocities and the absence of excessive turbulence.

• In case of exhaust system failure while using a hood, shut off all services and accessories and lower the sash completely. Leave the area immediately.

• Fume  hoods should  be certified, at  least annually, to ensure they are operating safely. Typical tests include face velocity measurements, smoke tests and tracer gas containment. Tracer gas containment tests are especially crucial, as studies  have shown that face velocity is not a good predictor of fume hood leakage.

• Laboratory fume hoods are one of the most important used and abused hazard control devices. We should understand that the combined use of safety glasses, protective gloves, laboratory smocks, good safety practices, and laboratory fume hoods are very important elements in protecting us from a potentially hazardous exposure.

• Laboratory fume hoods only protect users when they are used properly and are working correctly. A fume hood is designed to protect the user and room occupants from  exposure to vapors,  aerosols, toxic  materials,  odorous,  and  other  harmful substances. A secondary purpose is to serve as a protective shield when working with potentially explosive or highly reactive materials. This is accomplished by lowering the hood sash.

FAQ

Is A Ducted Fume Hood or Ductless Best for My Laboratory ?

So, how do you determine which is the right fume hood for your laboratory ducted or ductless?

Here are some questions to ask yourself:
1. Do you work with more than 10 different chemicals?
2. Are you working with small or large volumes of chemicals?
3. Does your lab have a high volume of inexperienced people working with chemicals, such as a university lab?
4. Does your building have an HVAC system and a team to manage it?
5. Is mobility necessary for your operation?
6. Do you have techs that can properly maintain a system, e.g. changing out filters?
7. Will the chemicals you are using adequately filter through carbon?

Answering these questions about how you work with chemicals in your lab will help you determine the appropriate application for your needs.