Corrosion Resistance Make-up Air Fume Hood for Laboratory

• Material: Stainless Steel
• Type: Bypass Type
• Function: Exhaust, Velocity Control
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• 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: Auxiliary Air 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

A fume hood is a piece of safety equipment that can be misused to the extent that they can be less effective than expected. Injury from misuse can arise from two causes:

• From the fume hood not providing adequate flow rates for the work required (i.e. sash being left open or from excess clutter that reduces the containment of noxious substances).

• From the hood itself (i.e. if the fan belts are slipping, the exhaust duct has blockage due to paper towels being sucked into the duct, the duct damper is restricted). Always realize the most likely person to be injured is the hood user. Escaping noxious material into the laboratory can also affect all laboratory occupants.

A. Power Outages
In case of a power outage, the hood sash should be lowered within an inch to maintain a chimney effect to keep some air flowing into the hood.

B. Exhaust
Care should be taken with use of paper products, aluminum foil, and other lightweight materials within a hood. For example, a single paper towel or chemical wipe can potentially decrease the airflow into the hood if it restricts exhaust flow.

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)

 

Installation Instructions

Adequate planning and preparation is the key. The hood user should know the Standard Operating Procedure (SOP) of the hood and should design experiments so that the SOP can be maintained whenever hazardous materials might be released.
Look for process changes that improve safety and reduce losses to the environment (e.g. more accurate chemical delivery systems vs. pouring volatile chemicals from bottles).

Develop a process to evaluate research proposals ahead of time for potential emissions and look for opportunities to reduce them.
The level of protection provided by a fume hood is affected by the manner in which the fume hood is used. No fume hood, however well designed, can provide adequate containment unless good laboratory practices are used, as follow:

• Ensure  the  exhaust  is  operating  before  beginning  work.  Check  the  baffles  for obstructions. If the hood is fitted with an airflow monitor, check the monitor's status. Even while working, be alert to changes in airflow.

• When using the fume hood, keep your face outside the plane of the hood. Use the sash for partial protection during hazardous work.

• Work at least 6 inches back from the face of the hood. A stripe on the bench surface is a good reminder.

• Use appropriate personal protective equipment such as splash goggles and gloves. This enhances safety in case of catastrophic spills, run-away reactions or fire. Wear a full face shield if there is possibility of an explosion or eruption.

Detailed Photos

Usage Attention

• Do not use the hood as a waste disposal mechanism. Apparatus used in a hood should be fitted with condensers, traps, or scrubbers to contain and collect waste solvents, toxic vapors or dust. Proper disposal of waste and code compliance should be practiced.

• Limit chemical storage in fume hoods. Keep the smallest amount of chemicals in the hood needed to conduct the procedure at hand.

• Do not use the hood as a storage area. Items can block airflow and interfere with containment. Store hazardous chemicals such as flammable liquids in an approved safety cabinet.

• Do not leave uncapped bottles of reagents in a hood. Although a hood is used to exhaust fumes out of the laboratory, minimizing the amount of evaporation and fuming is desirable for the environment and operator safety.

• Always use good housekeeping techniques to maintain the hood at optimal performance levels. Excessive storage of materials or equipment can cause eddy currents or reverse flow resulting in contaminants escaping from the hood.

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.